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  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD AND BSD-2-Clause-NetBSD
   8  *
   9  * Copyright (c) 2005, Takanori Watanabe
  10  * Copyright (c) 2003, M. Warner Losh <imp@FreeBSD.org>.
  11  * All rights reserved.
  12  *
  13  * Redistribution and use in source and binary forms, with or without
  14  * modification, are permitted provided that the following conditions
  15  * are met:
  16  * 1. Redistributions of source code must retain the above copyright
  17  *    notice, this list of conditions and the following disclaimer.
  18  * 2. Redistributions in binary form must reproduce the above copyright
  19  *    notice, this list of conditions and the following disclaimer in the
  20  *    documentation and/or other materials provided with the distribution.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  */
  34
  35 /*-
  36  * Copyright (c) 1998 The NetBSD Foundation, Inc.
  37  * All rights reserved.
  38  *
  39  * This code is derived from software contributed to The NetBSD Foundation
  40  * by Lennart Augustsson (lennart@augustsson.net) at
  41  * Carlstedt Research & Technology.
  42  *
  43  * Redistribution and use in source and binary forms, with or without
  44  * modification, are permitted provided that the following conditions
  45  * are met:
  46  * 1. Redistributions of source code must retain the above copyright
  47  *    notice, this list of conditions and the following disclaimer.
  48  * 2. Redistributions in binary form must reproduce the above copyright
  49  *    notice, this list of conditions and the following disclaimer in the
  50  *    documentation and/or other materials provided with the distribution.
  51  *
  52  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  53  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  54  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  55  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  56  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  57  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  58  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  59  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  60  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  61  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  62  * POSSIBILITY OF SUCH DAMAGE.
  63  */
  64
  65 /*
  66  * Comm Class spec:  http://www.usb.org/developers/devclass_docs/usbccs10.pdf
  67  *                   http://www.usb.org/developers/devclass_docs/usbcdc11.pdf
  68  */
  69
  70 /*
  71  * TODO:
  72  * - Implement a Call Device for modems without multiplexed commands.
  73  */
  74
  75 /*
  76  * NOTE: all function names beginning like "ufoma_cfg_" can only
  77  * be called from within the config thread function !
  78  */
  79
  80 #include <sys/stdint.h>
  81 #include <sys/stddef.h>
  82 #include <sys/param.h>
  83 #include <sys/queue.h>
  84 #include <sys/types.h>
  85 #include <sys/systm.h>
  86 #include <sys/kernel.h>
  87 #include <sys/bus.h>
  88 #include <sys/module.h>
  89 #include <sys/lock.h>
  90 #include <sys/mutex.h>
  91 #include <sys/condvar.h>
  92 #include <sys/sysctl.h>
  93 #include <sys/sx.h>
  94 #include <sys/unistd.h>
  95 #include <sys/callout.h>
  96 #include <sys/malloc.h>
  97 #include <sys/priv.h>
  98 #include <sys/sbuf.h>
  99
 100 #include <dev/usb/usb.h>
 101 #include <dev/usb/usbdi.h>
 102 #include <dev/usb/usbdi_util.h>
 103 #include <dev/usb/usb_cdc.h>
 104 #include "usbdevs.h"
 105
 106 #define USB_DEBUG_VAR usb_debug
 107 #include <dev/usb/usb_debug.h>
 108 #include <dev/usb/usb_process.h>
 109
 110 #include <dev/usb/serial/usb_serial.h>
 111
 112 typedef struct ufoma_mobile_acm_descriptor {
 113         uint8_t bFunctionLength;
 114         uint8_t bDescriptorType;
 115         uint8_t bDescriptorSubtype;
 116         uint8_t bType;
 117         uint8_t bMode[1];
 118 } __packed usb_mcpc_acm_descriptor;
 119
 120 #define UISUBCLASS_MCPC 0x88
 121
 122 #define UDESC_VS_INTERFACE 0x44
 123 #define UDESCSUB_MCPC_ACM  0x11
 124
 125 #define UMCPC_ACM_TYPE_AB1 0x1
 126 #define UMCPC_ACM_TYPE_AB2 0x2
 127 #define UMCPC_ACM_TYPE_AB5 0x5
 128 #define UMCPC_ACM_TYPE_AB6 0x6
 129
 130 #define UMCPC_ACM_MODE_DEACTIVATED 0x0
 131 #define UMCPC_ACM_MODE_MODEM 0x1
 132 #define UMCPC_ACM_MODE_ATCOMMAND 0x2
 133 #define UMCPC_ACM_MODE_OBEX 0x60
 134 #define UMCPC_ACM_MODE_VENDOR1 0xc0
 135 #define UMCPC_ACM_MODE_VENDOR2 0xfe
 136 #define UMCPC_ACM_MODE_UNLINKED 0xff
 137
 138 #define UMCPC_CM_MOBILE_ACM 0x0
 139
 140 #define UMCPC_ACTIVATE_MODE 0x60
 141 #define UMCPC_GET_MODETABLE 0x61
 142 #define UMCPC_SET_LINK 0x62
 143 #define UMCPC_CLEAR_LINK 0x63
 144
 145 #define UMCPC_REQUEST_ACKNOWLEDGE 0x31
 146
 147 #define UFOMA_MAX_TIMEOUT 15            /* standard says 10 seconds */
 148 #define UFOMA_CMD_BUF_SIZE 64           /* bytes */
 149
 150 #define UFOMA_BULK_BUF_SIZE 1024        /* bytes */
 151
 152 enum {
 153         UFOMA_CTRL_ENDPT_INTR,
 154         UFOMA_CTRL_ENDPT_READ,
 155         UFOMA_CTRL_ENDPT_WRITE,
 156         UFOMA_CTRL_ENDPT_MAX,
 157 };
 158
 159 enum {
 160         UFOMA_BULK_ENDPT_WRITE,
 161         UFOMA_BULK_ENDPT_READ,
 162         UFOMA_BULK_ENDPT_MAX,
 163 };
 164
 165 struct ufoma_softc {
 166         struct ucom_super_softc sc_super_ucom;
 167         struct ucom_softc sc_ucom;
 168         struct cv sc_cv;
 169         struct mtx sc_mtx;
 170
 171         struct usb_xfer *sc_ctrl_xfer[UFOMA_CTRL_ENDPT_MAX];
 172         struct usb_xfer *sc_bulk_xfer[UFOMA_BULK_ENDPT_MAX];
 173         uint8_t *sc_modetable;
 174         device_t sc_dev;
 175         struct usb_device *sc_udev;
 176
 177         uint32_t sc_unit;
 178
 179         uint16_t sc_line;
 180
 181         uint8_t sc_num_msg;
 182         uint8_t sc_nobulk;
 183         uint8_t sc_ctrl_iface_no;
 184         uint8_t sc_ctrl_iface_index;
 185         uint8_t sc_data_iface_no;
 186         uint8_t sc_data_iface_index;
 187         uint8_t sc_cm_cap;
 188         uint8_t sc_acm_cap;
 189         uint8_t sc_lsr;
 190         uint8_t sc_msr;
 191         uint8_t sc_modetoactivate;
 192         uint8_t sc_currentmode;
 193 };
 194
 195 /* prototypes */
 196
 197 static device_probe_t ufoma_probe;
 198 static device_attach_t ufoma_attach;
 199 static device_detach_t ufoma_detach;
 200 static void ufoma_free_softc(struct ufoma_softc *);
 201
 202 static usb_callback_t ufoma_ctrl_read_callback;
 203 static usb_callback_t ufoma_ctrl_write_callback;
 204 static usb_callback_t ufoma_intr_callback;
 205 static usb_callback_t ufoma_bulk_write_callback;
 206 static usb_callback_t ufoma_bulk_read_callback;
 207
 208 static void     *ufoma_get_intconf(struct usb_config_descriptor *,
 209                     struct usb_interface_descriptor *, uint8_t, uint8_t);
 210 static void     ufoma_cfg_link_state(struct ufoma_softc *);
 211 static void     ufoma_cfg_activate_state(struct ufoma_softc *, uint16_t);
 212 static void     ufoma_free(struct ucom_softc *);
 213 static void     ufoma_cfg_open(struct ucom_softc *);
 214 static void     ufoma_cfg_close(struct ucom_softc *);
 215 static void     ufoma_cfg_set_break(struct ucom_softc *, uint8_t);
 216 static void     ufoma_cfg_get_status(struct ucom_softc *, uint8_t *,
 217                     uint8_t *);
 218 static void     ufoma_cfg_set_dtr(struct ucom_softc *, uint8_t);
 219 static void     ufoma_cfg_set_rts(struct ucom_softc *, uint8_t);
 220 static int      ufoma_pre_param(struct ucom_softc *, struct termios *);
 221 static void     ufoma_cfg_param(struct ucom_softc *, struct termios *);
 222 static int      ufoma_modem_setup(device_t, struct ufoma_softc *,
 223                     struct usb_attach_arg *);
 224 static void     ufoma_start_read(struct ucom_softc *);
 225 static void     ufoma_stop_read(struct ucom_softc *);
 226 static void     ufoma_start_write(struct ucom_softc *);
 227 static void     ufoma_stop_write(struct ucom_softc *);
 228 static void     ufoma_poll(struct ucom_softc *ucom);
 229
 230 /*sysctl stuff*/
 231 static int ufoma_sysctl_support(SYSCTL_HANDLER_ARGS);
 232 static int ufoma_sysctl_current(SYSCTL_HANDLER_ARGS);
 233 static int ufoma_sysctl_open(SYSCTL_HANDLER_ARGS);
 234
 235 static const struct usb_config
 236         ufoma_ctrl_config[UFOMA_CTRL_ENDPT_MAX] = {
 237
 238         [UFOMA_CTRL_ENDPT_INTR] = {
 239                 .type = UE_INTERRUPT,
 240                 .endpoint = UE_ADDR_ANY,
 241                 .direction = UE_DIR_IN,
 242                 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
 243                 .bufsize = sizeof(struct usb_cdc_notification),
 244                 .callback = &ufoma_intr_callback,
 245         },
 246
 247         [UFOMA_CTRL_ENDPT_READ] = {
 248                 .type = UE_CONTROL,
 249                 .endpoint = 0x00,       /* Control pipe */
 250                 .direction = UE_DIR_ANY,
 251                 .bufsize = (sizeof(struct usb_device_request) + UFOMA_CMD_BUF_SIZE),
 252                 .flags = {.short_xfer_ok = 1,},
 253                 .callback = &ufoma_ctrl_read_callback,
 254                 .timeout = 1000,        /* 1 second */
 255         },
 256
 257         [UFOMA_CTRL_ENDPT_WRITE] = {
 258                 .type = UE_CONTROL,
 259                 .endpoint = 0x00,       /* Control pipe */
 260                 .direction = UE_DIR_ANY,
 261                 .bufsize = (sizeof(struct usb_device_request) + 1),
 262                 .callback = &ufoma_ctrl_write_callback,
 263                 .timeout = 1000,        /* 1 second */
 264         },
 265 };
 266
 267 static const struct usb_config
 268         ufoma_bulk_config[UFOMA_BULK_ENDPT_MAX] = {
 269
 270         [UFOMA_BULK_ENDPT_WRITE] = {
 271                 .type = UE_BULK,
 272                 .endpoint = UE_ADDR_ANY,
 273                 .direction = UE_DIR_OUT,
 274                 .bufsize = UFOMA_BULK_BUF_SIZE,
 275                 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
 276                 .callback = &ufoma_bulk_write_callback,
 277         },
 278
 279         [UFOMA_BULK_ENDPT_READ] = {
 280                 .type = UE_BULK,
 281                 .endpoint = UE_ADDR_ANY,
 282                 .direction = UE_DIR_IN,
 283                 .bufsize = UFOMA_BULK_BUF_SIZE,
 284                 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
 285                 .callback = &ufoma_bulk_read_callback,
 286         },
 287 };
 288
 289 static const struct ucom_callback ufoma_callback = {
 290         .ucom_cfg_get_status = &ufoma_cfg_get_status,
 291         .ucom_cfg_set_dtr = &ufoma_cfg_set_dtr,
 292         .ucom_cfg_set_rts = &ufoma_cfg_set_rts,
 293         .ucom_cfg_set_break = &ufoma_cfg_set_break,
 294         .ucom_cfg_param = &ufoma_cfg_param,
 295         .ucom_cfg_open = &ufoma_cfg_open,
 296         .ucom_cfg_close = &ufoma_cfg_close,
 297         .ucom_pre_param = &ufoma_pre_param,
 298         .ucom_start_read = &ufoma_start_read,
 299         .ucom_stop_read = &ufoma_stop_read,
 300         .ucom_start_write = &ufoma_start_write,
 301         .ucom_stop_write = &ufoma_stop_write,
 302         .ucom_poll = &ufoma_poll,
 303         .ucom_free = &ufoma_free,
 304 };
 305
 306 static device_method_t ufoma_methods[] = {
 307         /* Device methods */
 308         DEVMETHOD(device_probe, ufoma_probe),
 309         DEVMETHOD(device_attach, ufoma_attach),
 310         DEVMETHOD(device_detach, ufoma_detach),
 311         DEVMETHOD_END
 312 };
 313
 314 static devclass_t ufoma_devclass;
 315
 316 static driver_t ufoma_driver = {
 317         .name = "ufoma",
 318         .methods = ufoma_methods,
 319         .size = sizeof(struct ufoma_softc),
 320 };
 321
 322 static const STRUCT_USB_HOST_ID ufoma_devs[] = {
 323         {USB_IFACE_CLASS(UICLASS_CDC),
 324          USB_IFACE_SUBCLASS(UISUBCLASS_MCPC),},
 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 USB_PNP_HOST_INFO(ufoma_devs);
 332
 333 static int
 334 ufoma_probe(device_t dev)
 335 {
 336         struct usb_attach_arg *uaa = device_get_ivars(dev);
 337         struct usb_interface_descriptor *id;
 338         struct usb_config_descriptor *cd;
 339         usb_mcpc_acm_descriptor *mad;
 340         int error;
 341
 342         if (uaa->usb_mode != USB_MODE_HOST)
 343                 return (ENXIO);
 344
 345         error = usbd_lookup_id_by_uaa(ufoma_devs, sizeof(ufoma_devs), uaa);
 346         if (error)
 347                 return (error);
 348
 349         id = usbd_get_interface_descriptor(uaa->iface);
 350         cd = usbd_get_config_descriptor(uaa->device);
 351
 352         if (id == NULL || cd == NULL)
 353                 return (ENXIO);
 354
 355         mad = ufoma_get_intconf(cd, id, UDESC_VS_INTERFACE, UDESCSUB_MCPC_ACM);
 356         if (mad == NULL)
 357                 return (ENXIO);
 358
 359 #ifndef UFOMA_HANDSFREE
 360         if ((mad->bType == UMCPC_ACM_TYPE_AB5) ||
 361             (mad->bType == UMCPC_ACM_TYPE_AB6))
 362                 return (ENXIO);
 363 #endif
 364         return (BUS_PROBE_GENERIC);
 365 }
 366
 367 static int
 368 ufoma_attach(device_t dev)
 369 {
 370         struct usb_attach_arg *uaa = device_get_ivars(dev);
 371         struct ufoma_softc *sc = device_get_softc(dev);
 372         struct usb_config_descriptor *cd;
 373         struct usb_interface_descriptor *id;
 374         struct sysctl_ctx_list *sctx;
 375         struct sysctl_oid *soid;
 376
 377         usb_mcpc_acm_descriptor *mad;
 378         uint8_t elements;
 379         int32_t error;
 380
 381         sc->sc_udev = uaa->device;
 382         sc->sc_dev = dev;
 383         sc->sc_unit = device_get_unit(dev);
 384
 385         mtx_init(&sc->sc_mtx, "ufoma", NULL, MTX_DEF);
 386         ucom_ref(&sc->sc_super_ucom);
 387         cv_init(&sc->sc_cv, "CWAIT");
 388
 389         device_set_usb_desc(dev);
 390
 391         DPRINTF("\n");
 392
 393         /* setup control transfers */
 394
 395         cd = usbd_get_config_descriptor(uaa->device);
 396         id = usbd_get_interface_descriptor(uaa->iface);
 397         sc->sc_ctrl_iface_no = id->bInterfaceNumber;
 398         sc->sc_ctrl_iface_index = uaa->info.bIfaceIndex;
 399
 400         error = usbd_transfer_setup(uaa->device,
 401             &sc->sc_ctrl_iface_index, sc->sc_ctrl_xfer,
 402             ufoma_ctrl_config, UFOMA_CTRL_ENDPT_MAX, sc, &sc->sc_mtx);
 403
 404         if (error) {
 405                 device_printf(dev, "allocating control USB "
 406                     "transfers failed\n");
 407                 goto detach;
 408         }
 409         mad = ufoma_get_intconf(cd, id, UDESC_VS_INTERFACE, UDESCSUB_MCPC_ACM);
 410         if (mad == NULL) {
 411                 goto detach;
 412         }
 413         if (mad->bFunctionLength < sizeof(*mad)) {
 414                 device_printf(dev, "invalid MAD descriptor\n");
 415                 goto detach;
 416         }
 417         if ((mad->bType == UMCPC_ACM_TYPE_AB5) ||
 418             (mad->bType == UMCPC_ACM_TYPE_AB6)) {
 419                 sc->sc_nobulk = 1;
 420         } else {
 421                 sc->sc_nobulk = 0;
 422                 if (ufoma_modem_setup(dev, sc, uaa)) {
 423                         goto detach;
 424                 }
 425         }
 426
 427         elements = (mad->bFunctionLength - sizeof(*mad) + 1);
 428
 429         /* initialize mode variables */
 430
 431         sc->sc_modetable = malloc(elements + 1, M_USBDEV, M_WAITOK);
 432
 433         if (sc->sc_modetable == NULL) {
 434                 goto detach;
 435         }
 436         sc->sc_modetable[0] = (elements + 1);
 437         memcpy(&sc->sc_modetable[1], mad->bMode, elements);
 438
 439         sc->sc_currentmode = UMCPC_ACM_MODE_UNLINKED;
 440         sc->sc_modetoactivate = mad->bMode[0];
 441
 442         /* clear stall at first run, if any */
 443         mtx_lock(&sc->sc_mtx);
 444         usbd_xfer_set_stall(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_WRITE]);
 445         usbd_xfer_set_stall(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_READ]);
 446         mtx_unlock(&sc->sc_mtx);
 447
 448         error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc,
 449             &ufoma_callback, &sc->sc_mtx);
 450         if (error) {
 451                 DPRINTF("ucom_attach failed\n");
 452                 goto detach;
 453         }
 454         ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
 455
 456         /*Sysctls*/
 457         sctx = device_get_sysctl_ctx(dev);
 458         soid = device_get_sysctl_tree(dev);
 459
 460         SYSCTL_ADD_PROC(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "supportmode",
 461                         CTLFLAG_RD|CTLTYPE_STRING, sc, 0, ufoma_sysctl_support,
 462                         "A", "Supporting port role");
 463
 464         SYSCTL_ADD_PROC(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "currentmode",
 465                         CTLFLAG_RD|CTLTYPE_STRING, sc, 0, ufoma_sysctl_current,
 466                         "A", "Current port role");
 467
 468         SYSCTL_ADD_PROC(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "openmode",
 469                         CTLFLAG_RW|CTLTYPE_STRING, sc, 0, ufoma_sysctl_open,
 470                         "A", "Mode to transit when port is opened");
 471         SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "comunit",
 472                         CTLFLAG_RD, &(sc->sc_super_ucom.sc_unit), 0,
 473                         "Unit number as USB serial");
 474
 475         return (0);                     /* success */
 476
 477 detach:
 478         ufoma_detach(dev);
 479         return (ENXIO);                 /* failure */
 480 }
 481
 482 static int
 483 ufoma_detach(device_t dev)
 484 {
 485         struct ufoma_softc *sc = device_get_softc(dev);
 486
 487         ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom);
 488         usbd_transfer_unsetup(sc->sc_ctrl_xfer, UFOMA_CTRL_ENDPT_MAX);
 489         usbd_transfer_unsetup(sc->sc_bulk_xfer, UFOMA_BULK_ENDPT_MAX);
 490
 491         if (sc->sc_modetable) {
 492                 free(sc->sc_modetable, M_USBDEV);
 493         }
 494         cv_destroy(&sc->sc_cv);
 495
 496         device_claim_softc(dev);
 497
 498         ufoma_free_softc(sc);
 499
 500         return (0);
 501 }
 502
 503 UCOM_UNLOAD_DRAIN(ufoma);
 504
 505 static void
 506 ufoma_free_softc(struct ufoma_softc *sc)
 507 {
 508         if (ucom_unref(&sc->sc_super_ucom)) {
 509                 mtx_destroy(&sc->sc_mtx);
 510                 device_free_softc(sc);
 511         }
 512 }
 513
 514 static void
 515 ufoma_free(struct ucom_softc *ucom)
 516 {
 517         ufoma_free_softc(ucom->sc_parent);
 518 }
 519
 520 static void *
 521 ufoma_get_intconf(struct usb_config_descriptor *cd, struct usb_interface_descriptor *id,
 522     uint8_t type, uint8_t subtype)
 523 {
 524         struct usb_descriptor *desc = (void *)id;
 525
 526         while ((desc = usb_desc_foreach(cd, desc))) {
 527
 528                 if (desc->bDescriptorType == UDESC_INTERFACE) {
 529                         return (NULL);
 530                 }
 531                 if ((desc->bDescriptorType == type) &&
 532                     (desc->bDescriptorSubtype == subtype)) {
 533                         break;
 534                 }
 535         }
 536         return (desc);
 537 }
 538
 539 static void
 540 ufoma_cfg_link_state(struct ufoma_softc *sc)
 541 {
 542         struct usb_device_request req;
 543         int32_t error;
 544
 545         req.bmRequestType = UT_WRITE_VENDOR_INTERFACE;
 546         req.bRequest = UMCPC_SET_LINK;
 547         USETW(req.wValue, UMCPC_CM_MOBILE_ACM);
 548         USETW(req.wIndex, sc->sc_ctrl_iface_no);
 549         USETW(req.wLength, sc->sc_modetable[0]);
 550
 551         ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
 552             &req, sc->sc_modetable, 0, 1000);
 553
 554         error = cv_timedwait(&sc->sc_cv, &sc->sc_mtx, hz);
 555
 556         if (error) {
 557                 DPRINTF("NO response\n");
 558         }
 559 }
 560
 561 static void
 562 ufoma_cfg_activate_state(struct ufoma_softc *sc, uint16_t state)
 563 {
 564         struct usb_device_request req;
 565         int32_t error;
 566
 567         req.bmRequestType = UT_WRITE_VENDOR_INTERFACE;
 568         req.bRequest = UMCPC_ACTIVATE_MODE;
 569         USETW(req.wValue, state);
 570         USETW(req.wIndex, sc->sc_ctrl_iface_no);
 571         USETW(req.wLength, 0);
 572
 573         ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
 574             &req, NULL, 0, 1000);
 575
 576         error = cv_timedwait(&sc->sc_cv, &sc->sc_mtx,
 577             (UFOMA_MAX_TIMEOUT * hz));
 578         if (error) {
 579                 DPRINTF("No response\n");
 580         }
 581 }
 582
 583 static void
 584 ufoma_ctrl_read_callback(struct usb_xfer *xfer, usb_error_t error)
 585 {
 586         struct ufoma_softc *sc = usbd_xfer_softc(xfer);
 587         struct usb_device_request req;
 588         struct usb_page_cache *pc0, *pc1;
 589         int len, aframes, nframes;
 590
 591         usbd_xfer_status(xfer, NULL, NULL, &aframes, &nframes);
 592
 593         switch (USB_GET_STATE(xfer)) {
 594         case USB_ST_TRANSFERRED:
 595 tr_transferred:
 596                 if (aframes != nframes)
 597                         goto tr_setup;
 598                 pc1 = usbd_xfer_get_frame(xfer, 1);
 599                 len = usbd_xfer_frame_len(xfer, 1);
 600                 if (len > 0)
 601                         ucom_put_data(&sc->sc_ucom, pc1, 0, len);
 602                 /* FALLTHROUGH */
 603         case USB_ST_SETUP:
 604 tr_setup:
 605                 if (sc->sc_num_msg) {
 606                         sc->sc_num_msg--;
 607
 608                         req.bmRequestType = UT_READ_CLASS_INTERFACE;
 609                         req.bRequest = UCDC_GET_ENCAPSULATED_RESPONSE;
 610                         USETW(req.wIndex, sc->sc_ctrl_iface_no);
 611                         USETW(req.wValue, 0);
 612                         USETW(req.wLength, UFOMA_CMD_BUF_SIZE);
 613
 614                         pc0 = usbd_xfer_get_frame(xfer, 0);
 615                         usbd_copy_in(pc0, 0, &req, sizeof(req));
 616
 617                         usbd_xfer_set_frame_len(xfer, 0, sizeof(req));
 618                         usbd_xfer_set_frame_len(xfer, 1, UFOMA_CMD_BUF_SIZE);
 619                         usbd_xfer_set_frames(xfer, 2);
 620                         usbd_transfer_submit(xfer);
 621                 }
 622                 return;
 623
 624         default:                        /* Error */
 625                 DPRINTF("error = %s\n",
 626                     usbd_errstr(error));
 627
 628                 if (error == USB_ERR_CANCELLED) {
 629                         return;
 630                 }
 631                 goto tr_transferred;
 632         }
 633 }
 634
 635 static void
 636 ufoma_ctrl_write_callback(struct usb_xfer *xfer, usb_error_t error)
 637 {
 638         struct ufoma_softc *sc = usbd_xfer_softc(xfer);
 639         struct usb_device_request req;
 640         struct usb_page_cache *pc;
 641         uint32_t actlen;
 642
 643         switch (USB_GET_STATE(xfer)) {
 644         case USB_ST_TRANSFERRED:
 645 tr_transferred:
 646         case USB_ST_SETUP:
 647                 pc = usbd_xfer_get_frame(xfer, 1);
 648                 if (ucom_get_data(&sc->sc_ucom, pc, 0, 1, &actlen)) {
 649
 650                         req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
 651                         req.bRequest = UCDC_SEND_ENCAPSULATED_COMMAND;
 652                         USETW(req.wIndex, sc->sc_ctrl_iface_no);
 653                         USETW(req.wValue, 0);
 654                         USETW(req.wLength, 1);
 655
 656                         pc = usbd_xfer_get_frame(xfer, 0);
 657                         usbd_copy_in(pc, 0, &req, sizeof(req));
 658
 659                         usbd_xfer_set_frame_len(xfer, 0, sizeof(req));
 660                         usbd_xfer_set_frame_len(xfer, 1, 1);
 661                         usbd_xfer_set_frames(xfer, 2);
 662
 663                         usbd_transfer_submit(xfer);
 664                 }
 665                 return;
 666
 667         default:                        /* Error */
 668                 DPRINTF("error = %s\n", usbd_errstr(error));
 669
 670                 if (error == USB_ERR_CANCELLED) {
 671                         return;
 672                 }
 673                 goto tr_transferred;
 674         }
 675 }
 676
 677 static void
 678 ufoma_intr_callback(struct usb_xfer *xfer, usb_error_t error)
 679 {
 680         struct ufoma_softc *sc = usbd_xfer_softc(xfer);
 681         struct usb_cdc_notification pkt;
 682         struct usb_page_cache *pc;
 683         uint16_t wLen;
 684         uint16_t temp;
 685         uint8_t mstatus;
 686         int actlen;
 687
 688         usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
 689
 690         switch (USB_GET_STATE(xfer)) {
 691         case USB_ST_TRANSFERRED:
 692                 if (actlen < 8) {
 693                         DPRINTF("too short message\n");
 694                         goto tr_setup;
 695                 }
 696                 if (actlen > (int)sizeof(pkt)) {
 697                         DPRINTF("truncating message\n");
 698                         actlen = sizeof(pkt);
 699                 }
 700                 pc = usbd_xfer_get_frame(xfer, 0);
 701                 usbd_copy_out(pc, 0, &pkt, actlen);
 702
 703                 actlen -= 8;
 704
 705                 wLen = UGETW(pkt.wLength);
 706                 if (actlen > wLen) {
 707                         actlen = wLen;
 708                 }
 709                 if ((pkt.bmRequestType == UT_READ_VENDOR_INTERFACE) &&
 710                     (pkt.bNotification == UMCPC_REQUEST_ACKNOWLEDGE)) {
 711                         temp = UGETW(pkt.wValue);
 712                         sc->sc_currentmode = (temp >> 8);
 713                         if (!(temp & 0xff)) {
 714                                 DPRINTF("Mode change failed!\n");
 715                         }
 716                         cv_signal(&sc->sc_cv);
 717                 }
 718                 if (pkt.bmRequestType != UCDC_NOTIFICATION) {
 719                         goto tr_setup;
 720                 }
 721                 switch (pkt.bNotification) {
 722                 case UCDC_N_RESPONSE_AVAILABLE:
 723                         if (!(sc->sc_nobulk)) {
 724                                 DPRINTF("Wrong serial state!\n");
 725                                 break;
 726                         }
 727                         if (sc->sc_num_msg != 0xFF) {
 728                                 sc->sc_num_msg++;
 729                         }
 730                         usbd_transfer_start(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_READ]);
 731                         break;
 732
 733                 case UCDC_N_SERIAL_STATE:
 734                         if (sc->sc_nobulk) {
 735                                 DPRINTF("Wrong serial state!\n");
 736                                 break;
 737                         }
 738                         /*
 739                          * Set the serial state in ucom driver based on
 740                          * the bits from the notify message
 741                          */
 742                         if (actlen < 2) {
 743                                 DPRINTF("invalid notification "
 744                                     "length, %d bytes!\n", actlen);
 745                                 break;
 746                         }
 747                         DPRINTF("notify bytes = 0x%02x, 0x%02x\n",
 748                             pkt.data[0], pkt.data[1]);
 749
 750                         /* currently, lsr is always zero. */
 751                         sc->sc_lsr = 0;
 752                         sc->sc_msr = 0;
 753
 754                         mstatus = pkt.data[0];
 755
 756                         if (mstatus & UCDC_N_SERIAL_RI) {
 757                                 sc->sc_msr |= SER_RI;
 758                         }
 759                         if (mstatus & UCDC_N_SERIAL_DSR) {
 760                                 sc->sc_msr |= SER_DSR;
 761                         }
 762                         if (mstatus & UCDC_N_SERIAL_DCD) {
 763                                 sc->sc_msr |= SER_DCD;
 764                         }
 765                         ucom_status_change(&sc->sc_ucom);
 766                         break;
 767
 768                 default:
 769                         break;
 770                 }
 771
 772         case USB_ST_SETUP:
 773 tr_setup:
 774                 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
 775                 usbd_transfer_submit(xfer);
 776                 return;
 777
 778         default:                        /* Error */
 779                 if (error != USB_ERR_CANCELLED) {
 780                         /* try to clear stall first */
 781                         usbd_xfer_set_stall(xfer);
 782                         goto tr_setup;
 783                 }
 784                 return;
 785         }
 786 }
 787
 788 static void
 789 ufoma_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
 790 {
 791         struct ufoma_softc *sc = usbd_xfer_softc(xfer);
 792         struct usb_page_cache *pc;
 793         uint32_t actlen;
 794
 795         switch (USB_GET_STATE(xfer)) {
 796         case USB_ST_SETUP:
 797         case USB_ST_TRANSFERRED:
 798 tr_setup:
 799                 pc = usbd_xfer_get_frame(xfer, 0);
 800                 if (ucom_get_data(&sc->sc_ucom, pc, 0,
 801                     UFOMA_BULK_BUF_SIZE, &actlen)) {
 802                         usbd_xfer_set_frame_len(xfer, 0, actlen);
 803                         usbd_transfer_submit(xfer);
 804                 }
 805                 return;
 806
 807         default:                        /* Error */
 808                 if (error != USB_ERR_CANCELLED) {
 809                         /* try to clear stall first */
 810                         usbd_xfer_set_stall(xfer);
 811                         goto tr_setup;
 812                 }
 813                 return;
 814         }
 815 }
 816
 817 static void
 818 ufoma_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
 819 {
 820         struct ufoma_softc *sc = usbd_xfer_softc(xfer);
 821         struct usb_page_cache *pc;
 822         int actlen;
 823
 824         usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
 825
 826         switch (USB_GET_STATE(xfer)) {
 827         case USB_ST_TRANSFERRED:
 828                 pc = usbd_xfer_get_frame(xfer, 0);
 829                 ucom_put_data(&sc->sc_ucom, pc, 0, actlen);
 830
 831         case USB_ST_SETUP:
 832 tr_setup:
 833                 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
 834                 usbd_transfer_submit(xfer);
 835                 return;
 836
 837         default:                        /* Error */
 838                 if (error != USB_ERR_CANCELLED) {
 839                         /* try to clear stall first */
 840                         usbd_xfer_set_stall(xfer);
 841                         goto tr_setup;
 842                 }
 843                 return;
 844         }
 845 }
 846
 847 static void
 848 ufoma_cfg_open(struct ucom_softc *ucom)
 849 {
 850         struct ufoma_softc *sc = ucom->sc_parent;
 851
 852         /* empty input queue */
 853
 854         if (sc->sc_num_msg != 0xFF) {
 855                 sc->sc_num_msg++;
 856         }
 857         if (sc->sc_currentmode == UMCPC_ACM_MODE_UNLINKED) {
 858                 ufoma_cfg_link_state(sc);
 859         }
 860         if (sc->sc_currentmode == UMCPC_ACM_MODE_DEACTIVATED) {
 861                 ufoma_cfg_activate_state(sc, sc->sc_modetoactivate);
 862         }
 863 }
 864
 865 static void
 866 ufoma_cfg_close(struct ucom_softc *ucom)
 867 {
 868         struct ufoma_softc *sc = ucom->sc_parent;
 869
 870         ufoma_cfg_activate_state(sc, UMCPC_ACM_MODE_DEACTIVATED);
 871 }
 872
 873 static void
 874 ufoma_cfg_set_break(struct ucom_softc *ucom, uint8_t onoff)
 875 {
 876         struct ufoma_softc *sc = ucom->sc_parent;
 877         struct usb_device_request req;
 878         uint16_t wValue;
 879
 880         if (sc->sc_nobulk ||
 881             (sc->sc_currentmode == UMCPC_ACM_MODE_OBEX)) {
 882                 return;
 883         }
 884         if (!(sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK)) {
 885                 return;
 886         }
 887         wValue = onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF;
 888
 889         req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
 890         req.bRequest = UCDC_SEND_BREAK;
 891         USETW(req.wValue, wValue);
 892         req.wIndex[0] = sc->sc_ctrl_iface_no;
 893         req.wIndex[1] = 0;
 894         USETW(req.wLength, 0);
 895
 896         ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
 897             &req, NULL, 0, 1000);
 898 }
 899
 900 static void
 901 ufoma_cfg_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr)
 902 {
 903         struct ufoma_softc *sc = ucom->sc_parent;
 904
 905         /* XXX Note: sc_lsr is always zero */
 906         *lsr = sc->sc_lsr;
 907         *msr = sc->sc_msr;
 908 }
 909
 910 static void
 911 ufoma_cfg_set_line_state(struct ufoma_softc *sc)
 912 {
 913         struct usb_device_request req;
 914
 915         /* Don't send line state emulation request for OBEX port */
 916         if (sc->sc_currentmode == UMCPC_ACM_MODE_OBEX) {
 917                 return;
 918         }
 919         req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
 920         req.bRequest = UCDC_SET_CONTROL_LINE_STATE;
 921         USETW(req.wValue, sc->sc_line);
 922         req.wIndex[0] = sc->sc_ctrl_iface_no;
 923         req.wIndex[1] = 0;
 924         USETW(req.wLength, 0);
 925
 926         ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
 927             &req, NULL, 0, 1000);
 928 }
 929
 930 static void
 931 ufoma_cfg_set_dtr(struct ucom_softc *ucom, uint8_t onoff)
 932 {
 933         struct ufoma_softc *sc = ucom->sc_parent;
 934
 935         if (sc->sc_nobulk) {
 936                 return;
 937         }
 938         if (onoff)
 939                 sc->sc_line |= UCDC_LINE_DTR;
 940         else
 941                 sc->sc_line &= ~UCDC_LINE_DTR;
 942
 943         ufoma_cfg_set_line_state(sc);
 944 }
 945
 946 static void
 947 ufoma_cfg_set_rts(struct ucom_softc *ucom, uint8_t onoff)
 948 {
 949         struct ufoma_softc *sc = ucom->sc_parent;
 950
 951         if (sc->sc_nobulk) {
 952                 return;
 953         }
 954         if (onoff)
 955                 sc->sc_line |= UCDC_LINE_RTS;
 956         else
 957                 sc->sc_line &= ~UCDC_LINE_RTS;
 958
 959         ufoma_cfg_set_line_state(sc);
 960 }
 961
 962 static int
 963 ufoma_pre_param(struct ucom_softc *ucom, struct termios *t)
 964 {
 965         return (0);                     /* we accept anything */
 966 }
 967
 968 static void
 969 ufoma_cfg_param(struct ucom_softc *ucom, struct termios *t)
 970 {
 971         struct ufoma_softc *sc = ucom->sc_parent;
 972         struct usb_device_request req;
 973         struct usb_cdc_line_state ls;
 974
 975         if (sc->sc_nobulk ||
 976             (sc->sc_currentmode == UMCPC_ACM_MODE_OBEX)) {
 977                 return;
 978         }
 979         DPRINTF("\n");
 980
 981         memset(&ls, 0, sizeof(ls));
 982
 983         USETDW(ls.dwDTERate, t->c_ospeed);
 984
 985         if (t->c_cflag & CSTOPB) {
 986                 ls.bCharFormat = UCDC_STOP_BIT_2;
 987         } else {
 988                 ls.bCharFormat = UCDC_STOP_BIT_1;
 989         }
 990
 991         if (t->c_cflag & PARENB) {
 992                 if (t->c_cflag & PARODD) {
 993                         ls.bParityType = UCDC_PARITY_ODD;
 994                 } else {
 995                         ls.bParityType = UCDC_PARITY_EVEN;
 996                 }
 997         } else {
 998                 ls.bParityType = UCDC_PARITY_NONE;
 999         }
1000
1001         switch (t->c_cflag & CSIZE) {
1002         case CS5:
1003                 ls.bDataBits = 5;
1004                 break;
1005         case CS6:
1006                 ls.bDataBits = 6;
1007                 break;
1008         case CS7:
1009                 ls.bDataBits = 7;
1010                 break;
1011         case CS8:
1012                 ls.bDataBits = 8;
1013                 break;
1014         }
1015
1016         req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
1017         req.bRequest = UCDC_SET_LINE_CODING;
1018         USETW(req.wValue, 0);
1019         req.wIndex[0] = sc->sc_ctrl_iface_no;
1020         req.wIndex[1] = 0;
1021         USETW(req.wLength, UCDC_LINE_STATE_LENGTH);
1022
1023         ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
1024             &req, &ls, 0, 1000);
1025 }
1026
1027 static int
1028 ufoma_modem_setup(device_t dev, struct ufoma_softc *sc,
1029     struct usb_attach_arg *uaa)
1030 {
1031         struct usb_config_descriptor *cd;
1032         struct usb_cdc_acm_descriptor *acm;
1033         struct usb_cdc_cm_descriptor *cmd;
1034         struct usb_interface_descriptor *id;
1035         struct usb_interface *iface;
1036         uint8_t i;
1037         int32_t error;
1038
1039         cd = usbd_get_config_descriptor(uaa->device);
1040         id = usbd_get_interface_descriptor(uaa->iface);
1041
1042         cmd = ufoma_get_intconf(cd, id, UDESC_CS_INTERFACE, UDESCSUB_CDC_CM);
1043
1044         if ((cmd == NULL) ||
1045             (cmd->bLength < sizeof(*cmd))) {
1046                 return (EINVAL);
1047         }
1048         sc->sc_cm_cap = cmd->bmCapabilities;
1049         sc->sc_data_iface_no = cmd->bDataInterface;
1050
1051         acm = ufoma_get_intconf(cd, id, UDESC_CS_INTERFACE, UDESCSUB_CDC_ACM);
1052
1053         if ((acm == NULL) ||
1054             (acm->bLength < sizeof(*acm))) {
1055                 return (EINVAL);
1056         }
1057         sc->sc_acm_cap = acm->bmCapabilities;
1058
1059         device_printf(dev, "data interface %d, has %sCM over data, "
1060             "has %sbreak\n",
1061             sc->sc_data_iface_no,
1062             sc->sc_cm_cap & USB_CDC_CM_OVER_DATA ? "" : "no ",
1063             sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK ? "" : "no ");
1064
1065         /* get the data interface too */
1066
1067         for (i = 0;; i++) {
1068
1069                 iface = usbd_get_iface(uaa->device, i);
1070
1071                 if (iface) {
1072
1073                         id = usbd_get_interface_descriptor(iface);
1074
1075                         if (id && (id->bInterfaceNumber == sc->sc_data_iface_no)) {
1076                                 sc->sc_data_iface_index = i;
1077                                 usbd_set_parent_iface(uaa->device, i, uaa->info.bIfaceIndex);
1078                                 break;
1079                         }
1080                 } else {
1081                         device_printf(dev, "no data interface\n");
1082                         return (EINVAL);
1083                 }
1084         }
1085
1086         error = usbd_transfer_setup(uaa->device,
1087             &sc->sc_data_iface_index, sc->sc_bulk_xfer,
1088             ufoma_bulk_config, UFOMA_BULK_ENDPT_MAX, sc, &sc->sc_mtx);
1089
1090         if (error) {
1091                 device_printf(dev, "allocating BULK USB "
1092                     "transfers failed\n");
1093                 return (EINVAL);
1094         }
1095         return (0);
1096 }
1097
1098 static void
1099 ufoma_start_read(struct ucom_softc *ucom)
1100 {
1101         struct ufoma_softc *sc = ucom->sc_parent;
1102
1103         /* start interrupt transfer */
1104         usbd_transfer_start(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_INTR]);
1105
1106         /* start data transfer */
1107         if (sc->sc_nobulk) {
1108                 usbd_transfer_start(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_READ]);
1109         } else {
1110                 usbd_transfer_start(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_READ]);
1111         }
1112 }
1113
1114 static void
1115 ufoma_stop_read(struct ucom_softc *ucom)
1116 {
1117         struct ufoma_softc *sc = ucom->sc_parent;
1118
1119         /* stop interrupt transfer */
1120         usbd_transfer_stop(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_INTR]);
1121
1122         /* stop data transfer */
1123         if (sc->sc_nobulk) {
1124                 usbd_transfer_stop(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_READ]);
1125         } else {
1126                 usbd_transfer_stop(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_READ]);
1127         }
1128 }
1129
1130 static void
1131 ufoma_start_write(struct ucom_softc *ucom)
1132 {
1133         struct ufoma_softc *sc = ucom->sc_parent;
1134
1135         if (sc->sc_nobulk) {
1136                 usbd_transfer_start(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_WRITE]);
1137         } else {
1138                 usbd_transfer_start(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_WRITE]);
1139         }
1140 }
1141
1142 static void
1143 ufoma_stop_write(struct ucom_softc *ucom)
1144 {
1145         struct ufoma_softc *sc = ucom->sc_parent;
1146
1147         if (sc->sc_nobulk) {
1148                 usbd_transfer_stop(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_WRITE]);
1149         } else {
1150                 usbd_transfer_stop(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_WRITE]);
1151         }
1152 }
1153
1154 static struct umcpc_modetostr_tab{
1155         int mode;
1156         char *str;
1157 }umcpc_modetostr_tab[]={
1158         {UMCPC_ACM_MODE_DEACTIVATED, "deactivated"},
1159         {UMCPC_ACM_MODE_MODEM, "modem"},
1160         {UMCPC_ACM_MODE_ATCOMMAND, "handsfree"},
1161         {UMCPC_ACM_MODE_OBEX, "obex"},
1162         {UMCPC_ACM_MODE_VENDOR1, "vendor1"},
1163         {UMCPC_ACM_MODE_VENDOR2, "vendor2"},
1164         {UMCPC_ACM_MODE_UNLINKED, "unlinked"},
1165         {0, NULL}
1166 };
1167
1168 static char *ufoma_mode_to_str(int mode)
1169 {
1170         int i;
1171         for(i = 0 ;umcpc_modetostr_tab[i].str != NULL; i++){
1172                 if(umcpc_modetostr_tab[i].mode == mode){
1173                         return umcpc_modetostr_tab[i].str;
1174                 }
1175         }
1176         return NULL;
1177 }
1178
1179 static int ufoma_str_to_mode(char *str)
1180 {
1181         int i;
1182         for(i = 0 ;umcpc_modetostr_tab[i].str != NULL; i++){
1183                 if(strcmp(str, umcpc_modetostr_tab[i].str)==0){
1184                         return umcpc_modetostr_tab[i].mode;
1185                 }
1186         }
1187         return -1;
1188 }
1189
1190 static int ufoma_sysctl_support(SYSCTL_HANDLER_ARGS)
1191 {
1192         struct ufoma_softc *sc = (struct ufoma_softc *)oidp->oid_arg1;
1193         struct sbuf sb;
1194         int i;
1195         char *mode;
1196
1197         sbuf_new(&sb, NULL, 1, SBUF_AUTOEXTEND);
1198         for(i = 1; i < sc->sc_modetable[0]; i++){
1199                 mode = ufoma_mode_to_str(sc->sc_modetable[i]);
1200                 if(mode !=NULL){
1201                         sbuf_cat(&sb, mode);
1202                 }else{
1203                         sbuf_printf(&sb, "(%02x)", sc->sc_modetable[i]);
1204                 }
1205                 if(i < (sc->sc_modetable[0]-1))
1206                         sbuf_cat(&sb, ",");
1207         }
1208         sbuf_trim(&sb);
1209         sbuf_finish(&sb);
1210         sysctl_handle_string(oidp, sbuf_data(&sb), sbuf_len(&sb), req);
1211         sbuf_delete(&sb);
1212
1213         return 0;
1214 }
1215 static int ufoma_sysctl_current(SYSCTL_HANDLER_ARGS)
1216 {
1217         struct ufoma_softc *sc = (struct ufoma_softc *)oidp->oid_arg1;
1218         char *mode;
1219         char subbuf[]="(XXX)";
1220         mode = ufoma_mode_to_str(sc->sc_currentmode);
1221         if(!mode){
1222                 mode = subbuf;
1223                 snprintf(subbuf, sizeof(subbuf), "(%02x)", sc->sc_currentmode);
1224         }
1225         sysctl_handle_string(oidp, mode, strlen(mode), req);
1226
1227         return 0;
1228
1229 }
1230 static int ufoma_sysctl_open(SYSCTL_HANDLER_ARGS)
1231 {
1232         struct ufoma_softc *sc = (struct ufoma_softc *)oidp->oid_arg1;
1233         char *mode;
1234         char subbuf[40];
1235         int newmode;
1236         int error;
1237         int i;
1238
1239         mode = ufoma_mode_to_str(sc->sc_modetoactivate);
1240         if(mode){
1241                 strncpy(subbuf, mode, sizeof(subbuf));
1242         }else{
1243                 snprintf(subbuf, sizeof(subbuf), "(%02x)", sc->sc_modetoactivate);
1244         }
1245         error = sysctl_handle_string(oidp, subbuf, sizeof(subbuf), req);
1246         if(error != 0 || req->newptr == NULL){
1247                 return error;
1248         }
1249
1250         if((newmode = ufoma_str_to_mode(subbuf)) == -1){
1251                 return EINVAL;
1252         }
1253
1254         for(i = 1 ; i < sc->sc_modetable[0] ; i++){
1255                 if(sc->sc_modetable[i] == newmode){
1256                         sc->sc_modetoactivate = newmode;
1257                         return 0;
1258                 }
1259         }
1260
1261         return EINVAL;
1262 }
1263
1264 static void
1265 ufoma_poll(struct ucom_softc *ucom)
1266 {
1267         struct ufoma_softc *sc = ucom->sc_parent;
1268         usbd_transfer_poll(sc->sc_ctrl_xfer, UFOMA_CTRL_ENDPT_MAX);
1269         usbd_transfer_poll(sc->sc_bulk_xfer, UFOMA_BULK_ENDPT_MAX);
1270 }