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 All rights reserved.
  10  * Copyright (c) 2003 M. Warner Losh <imp@FreeBSD.org>
  11  *
  12  * Redistribution and use in source and binary forms, with or without
  13  * modification, are permitted provided that the following conditions
  14  * are met:
  15  * 1. Redistributions of source code must retain the above copyright
  16  *    notice, this list of conditions and the following disclaimer.
  17  * 2. Redistributions in binary form must reproduce the above copyright
  18  *    notice, this list of conditions and the following disclaimer in the
  19  *    documentation and/or other materials provided with the distribution.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 /*-
  35  * Copyright (c) 1998 The NetBSD Foundation, Inc.
  36  * All rights reserved.
  37  *
  38  * This code is derived from software contributed to The NetBSD Foundation
  39  * by Lennart Augustsson (lennart@augustsson.net) at
  40  * Carlstedt Research & Technology.
  41  *
  42  * Redistribution and use in source and binary forms, with or without
  43  * modification, are permitted provided that the following conditions
  44  * are met:
  45  * 1. Redistributions of source code must retain the above copyright
  46  *    notice, this list of conditions and the following disclaimer.
  47  * 2. Redistributions in binary form must reproduce the above copyright
  48  *    notice, this list of conditions and the following disclaimer in the
  49  *    documentation and/or other materials provided with the distribution.
  50  *
  51  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  52  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  53  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  54  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  55  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  56  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  57  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  58  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  59  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  60  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  61  * POSSIBILITY OF SUCH DAMAGE.
  62  */
  63
  64 /*
  65  * Comm Class spec:  http://www.usb.org/developers/devclass_docs/usbccs10.pdf
  66  *                   http://www.usb.org/developers/devclass_docs/usbcdc11.pdf
  67  */
  68
  69 /*
  70  * TODO:
  71  * - Implement a Call Device for modems without multiplexed commands.
  72  */
  73
  74 /*
  75  * NOTE: all function names beginning like "ufoma_cfg_" can only
  76  * be called from within the config thread function !
  77  */
  78
  79 #include <sys/stdint.h>
  80 #include <sys/stddef.h>
  81 #include <sys/param.h>
  82 #include <sys/queue.h>
  83 #include <sys/types.h>
  84 #include <sys/systm.h>
  85 #include <sys/kernel.h>
  86 #include <sys/bus.h>
  87 #include <sys/module.h>
  88 #include <sys/lock.h>
  89 #include <sys/mutex.h>
  90 #include <sys/condvar.h>
  91 #include <sys/sysctl.h>
  92 #include <sys/sx.h>
  93 #include <sys/unistd.h>
  94 #include <sys/callout.h>
  95 #include <sys/malloc.h>
  96 #include <sys/priv.h>
  97 #include <sys/sbuf.h>
  98
  99 #include <dev/usb/usb.h>
 100 #include <dev/usb/usbdi.h>
 101 #include <dev/usb/usbdi_util.h>
 102 #include <dev/usb/usb_cdc.h>
 103 #include "usbdevs.h"
 104
 105 #define USB_DEBUG_VAR usb_debug
 106 #include <dev/usb/usb_debug.h>
 107 #include <dev/usb/usb_process.h>
 108
 109 #include <dev/usb/serial/usb_serial.h>
 110
 111 typedef struct ufoma_mobile_acm_descriptor {
 112         uint8_t bFunctionLength;
 113         uint8_t bDescriptorType;
 114         uint8_t bDescriptorSubtype;
 115         uint8_t bType;
 116         uint8_t bMode[1];
 117 } __packed usb_mcpc_acm_descriptor;
 118
 119 #define UISUBCLASS_MCPC 0x88
 120
 121 #define UDESC_VS_INTERFACE 0x44
 122 #define UDESCSUB_MCPC_ACM  0x11
 123
 124 #define UMCPC_ACM_TYPE_AB1 0x1
 125 #define UMCPC_ACM_TYPE_AB2 0x2
 126 #define UMCPC_ACM_TYPE_AB5 0x5
 127 #define UMCPC_ACM_TYPE_AB6 0x6
 128
 129 #define UMCPC_ACM_MODE_DEACTIVATED 0x0
 130 #define UMCPC_ACM_MODE_MODEM 0x1
 131 #define UMCPC_ACM_MODE_ATCOMMAND 0x2
 132 #define UMCPC_ACM_MODE_OBEX 0x60
 133 #define UMCPC_ACM_MODE_VENDOR1 0xc0
 134 #define UMCPC_ACM_MODE_VENDOR2 0xfe
 135 #define UMCPC_ACM_MODE_UNLINKED 0xff
 136
 137 #define UMCPC_CM_MOBILE_ACM 0x0
 138
 139 #define UMCPC_ACTIVATE_MODE 0x60
 140 #define UMCPC_GET_MODETABLE 0x61
 141 #define UMCPC_SET_LINK 0x62
 142 #define UMCPC_CLEAR_LINK 0x63
 143
 144 #define UMCPC_REQUEST_ACKNOWLEDGE 0x31
 145
 146 #define UFOMA_MAX_TIMEOUT 15            /* standard says 10 seconds */
 147 #define UFOMA_CMD_BUF_SIZE 64           /* bytes */
 148
 149 #define UFOMA_BULK_BUF_SIZE 1024        /* bytes */
 150
 151 enum {
 152         UFOMA_CTRL_ENDPT_INTR,
 153         UFOMA_CTRL_ENDPT_READ,
 154         UFOMA_CTRL_ENDPT_WRITE,
 155         UFOMA_CTRL_ENDPT_MAX,
 156 };
 157
 158 enum {
 159         UFOMA_BULK_ENDPT_WRITE,
 160         UFOMA_BULK_ENDPT_READ,
 161         UFOMA_BULK_ENDPT_MAX,
 162 };
 163
 164 struct ufoma_softc {
 165         struct ucom_super_softc sc_super_ucom;
 166         struct ucom_softc sc_ucom;
 167         struct cv sc_cv;
 168         struct mtx sc_mtx;
 169
 170         struct usb_xfer *sc_ctrl_xfer[UFOMA_CTRL_ENDPT_MAX];
 171         struct usb_xfer *sc_bulk_xfer[UFOMA_BULK_ENDPT_MAX];
 172         uint8_t *sc_modetable;
 173         device_t sc_dev;
 174         struct usb_device *sc_udev;
 175
 176         uint32_t sc_unit;
 177
 178         uint16_t sc_line;
 179
 180         uint8_t sc_num_msg;
 181         uint8_t sc_nobulk;
 182         uint8_t sc_ctrl_iface_no;
 183         uint8_t sc_ctrl_iface_index;
 184         uint8_t sc_data_iface_no;
 185         uint8_t sc_data_iface_index;
 186         uint8_t sc_cm_cap;
 187         uint8_t sc_acm_cap;
 188         uint8_t sc_lsr;
 189         uint8_t sc_msr;
 190         uint8_t sc_modetoactivate;
 191         uint8_t sc_currentmode;
 192 };
 193
 194 /* prototypes */
 195
 196 static device_probe_t ufoma_probe;
 197 static device_attach_t ufoma_attach;
 198 static device_detach_t ufoma_detach;
 199 static void ufoma_free_softc(struct ufoma_softc *);
 200
 201 static usb_callback_t ufoma_ctrl_read_callback;
 202 static usb_callback_t ufoma_ctrl_write_callback;
 203 static usb_callback_t ufoma_intr_callback;
 204 static usb_callback_t ufoma_bulk_write_callback;
 205 static usb_callback_t ufoma_bulk_read_callback;
 206
 207 static void     *ufoma_get_intconf(struct usb_config_descriptor *,
 208                     struct usb_interface_descriptor *, uint8_t, uint8_t);
 209 static void     ufoma_cfg_link_state(struct ufoma_softc *);
 210 static void     ufoma_cfg_activate_state(struct ufoma_softc *, uint16_t);
 211 static void     ufoma_free(struct ucom_softc *);
 212 static void     ufoma_cfg_open(struct ucom_softc *);
 213 static void     ufoma_cfg_close(struct ucom_softc *);
 214 static void     ufoma_cfg_set_break(struct ucom_softc *, uint8_t);
 215 static void     ufoma_cfg_get_status(struct ucom_softc *, uint8_t *,
 216                     uint8_t *);
 217 static void     ufoma_cfg_set_dtr(struct ucom_softc *, uint8_t);
 218 static void     ufoma_cfg_set_rts(struct ucom_softc *, uint8_t);
 219 static int      ufoma_pre_param(struct ucom_softc *, struct termios *);
 220 static void     ufoma_cfg_param(struct ucom_softc *, struct termios *);
 221 static int      ufoma_modem_setup(device_t, struct ufoma_softc *,
 222                     struct usb_attach_arg *);
 223 static void     ufoma_start_read(struct ucom_softc *);
 224 static void     ufoma_stop_read(struct ucom_softc *);
 225 static void     ufoma_start_write(struct ucom_softc *);
 226 static void     ufoma_stop_write(struct ucom_softc *);
 227 static void     ufoma_poll(struct ucom_softc *ucom);
 228
 229 /*sysctl stuff*/
 230 static int ufoma_sysctl_support(SYSCTL_HANDLER_ARGS);
 231 static int ufoma_sysctl_current(SYSCTL_HANDLER_ARGS);
 232 static int ufoma_sysctl_open(SYSCTL_HANDLER_ARGS);
 233
 234 static const struct usb_config
 235         ufoma_ctrl_config[UFOMA_CTRL_ENDPT_MAX] = {
 236
 237         [UFOMA_CTRL_ENDPT_INTR] = {
 238                 .type = UE_INTERRUPT,
 239                 .endpoint = UE_ADDR_ANY,
 240                 .direction = UE_DIR_IN,
 241                 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
 242                 .bufsize = sizeof(struct usb_cdc_notification),
 243                 .callback = &ufoma_intr_callback,
 244         },
 245
 246         [UFOMA_CTRL_ENDPT_READ] = {
 247                 .type = UE_CONTROL,
 248                 .endpoint = 0x00,       /* Control pipe */
 249                 .direction = UE_DIR_ANY,
 250                 .bufsize = (sizeof(struct usb_device_request) + UFOMA_CMD_BUF_SIZE),
 251                 .flags = {.short_xfer_ok = 1,},
 252                 .callback = &ufoma_ctrl_read_callback,
 253                 .timeout = 1000,        /* 1 second */
 254         },
 255
 256         [UFOMA_CTRL_ENDPT_WRITE] = {
 257                 .type = UE_CONTROL,
 258                 .endpoint = 0x00,       /* Control pipe */
 259                 .direction = UE_DIR_ANY,
 260                 .bufsize = (sizeof(struct usb_device_request) + 1),
 261                 .callback = &ufoma_ctrl_write_callback,
 262                 .timeout = 1000,        /* 1 second */
 263         },
 264 };
 265
 266 static const struct usb_config
 267         ufoma_bulk_config[UFOMA_BULK_ENDPT_MAX] = {
 268
 269         [UFOMA_BULK_ENDPT_WRITE] = {
 270                 .type = UE_BULK,
 271                 .endpoint = UE_ADDR_ANY,
 272                 .direction = UE_DIR_OUT,
 273                 .bufsize = UFOMA_BULK_BUF_SIZE,
 274                 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
 275                 .callback = &ufoma_bulk_write_callback,
 276         },
 277
 278         [UFOMA_BULK_ENDPT_READ] = {
 279                 .type = UE_BULK,
 280                 .endpoint = UE_ADDR_ANY,
 281                 .direction = UE_DIR_IN,
 282                 .bufsize = UFOMA_BULK_BUF_SIZE,
 283                 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
 284                 .callback = &ufoma_bulk_read_callback,
 285         },
 286 };
 287
 288 static const struct ucom_callback ufoma_callback = {
 289         .ucom_cfg_get_status = &ufoma_cfg_get_status,
 290         .ucom_cfg_set_dtr = &ufoma_cfg_set_dtr,
 291         .ucom_cfg_set_rts = &ufoma_cfg_set_rts,
 292         .ucom_cfg_set_break = &ufoma_cfg_set_break,
 293         .ucom_cfg_param = &ufoma_cfg_param,
 294         .ucom_cfg_open = &ufoma_cfg_open,
 295         .ucom_cfg_close = &ufoma_cfg_close,
 296         .ucom_pre_param = &ufoma_pre_param,
 297         .ucom_start_read = &ufoma_start_read,
 298         .ucom_stop_read = &ufoma_stop_read,
 299         .ucom_start_write = &ufoma_start_write,
 300         .ucom_stop_write = &ufoma_stop_write,
 301         .ucom_poll = &ufoma_poll,
 302         .ucom_free = &ufoma_free,
 303 };
 304
 305 static device_method_t ufoma_methods[] = {
 306         /* Device methods */
 307         DEVMETHOD(device_probe, ufoma_probe),
 308         DEVMETHOD(device_attach, ufoma_attach),
 309         DEVMETHOD(device_detach, ufoma_detach),
 310         DEVMETHOD_END
 311 };
 312
 313 static devclass_t ufoma_devclass;
 314
 315 static driver_t ufoma_driver = {
 316         .name = "ufoma",
 317         .methods = ufoma_methods,
 318         .size = sizeof(struct ufoma_softc),
 319 };
 320
 321 static const STRUCT_USB_HOST_ID ufoma_devs[] = {
 322         {USB_IFACE_CLASS(UICLASS_CDC),
 323          USB_IFACE_SUBCLASS(UISUBCLASS_MCPC),},
 324 };
 325
 326 DRIVER_MODULE(ufoma, uhub, ufoma_driver, ufoma_devclass, NULL, 0);
 327 MODULE_DEPEND(ufoma, ucom, 1, 1, 1);
 328 MODULE_DEPEND(ufoma, usb, 1, 1, 1);
 329 MODULE_VERSION(ufoma, 1);
 330 USB_PNP_HOST_INFO(ufoma_devs);
 331
 332 static int
 333 ufoma_probe(device_t dev)
 334 {
 335         struct usb_attach_arg *uaa = device_get_ivars(dev);
 336         struct usb_interface_descriptor *id;
 337         struct usb_config_descriptor *cd;
 338         usb_mcpc_acm_descriptor *mad;
 339         int error;
 340
 341         if (uaa->usb_mode != USB_MODE_HOST)
 342                 return (ENXIO);
 343
 344         error = usbd_lookup_id_by_uaa(ufoma_devs, sizeof(ufoma_devs), uaa);
 345         if (error)
 346                 return (error);
 347
 348         id = usbd_get_interface_descriptor(uaa->iface);
 349         cd = usbd_get_config_descriptor(uaa->device);
 350
 351         if (id == NULL || cd == NULL)
 352                 return (ENXIO);
 353
 354         mad = ufoma_get_intconf(cd, id, UDESC_VS_INTERFACE, UDESCSUB_MCPC_ACM);
 355         if (mad == NULL)
 356                 return (ENXIO);
 357
 358 #ifndef UFOMA_HANDSFREE
 359         if ((mad->bType == UMCPC_ACM_TYPE_AB5) ||
 360             (mad->bType == UMCPC_ACM_TYPE_AB6))
 361                 return (ENXIO);
 362 #endif
 363         return (BUS_PROBE_GENERIC);
 364 }
 365
 366 static int
 367 ufoma_attach(device_t dev)
 368 {
 369         struct usb_attach_arg *uaa = device_get_ivars(dev);
 370         struct ufoma_softc *sc = device_get_softc(dev);
 371         struct usb_config_descriptor *cd;
 372         struct usb_interface_descriptor *id;
 373         struct sysctl_ctx_list *sctx;
 374         struct sysctl_oid *soid;
 375
 376         usb_mcpc_acm_descriptor *mad;
 377         uint8_t elements;
 378         int32_t error;
 379
 380         sc->sc_udev = uaa->device;
 381         sc->sc_dev = dev;
 382         sc->sc_unit = device_get_unit(dev);
 383
 384         mtx_init(&sc->sc_mtx, "ufoma", NULL, MTX_DEF);
 385         ucom_ref(&sc->sc_super_ucom);
 386         cv_init(&sc->sc_cv, "CWAIT");
 387
 388         device_set_usb_desc(dev);
 389
 390         DPRINTF("\n");
 391
 392         /* setup control transfers */
 393
 394         cd = usbd_get_config_descriptor(uaa->device);
 395         id = usbd_get_interface_descriptor(uaa->iface);
 396         sc->sc_ctrl_iface_no = id->bInterfaceNumber;
 397         sc->sc_ctrl_iface_index = uaa->info.bIfaceIndex;
 398
 399         error = usbd_transfer_setup(uaa->device,
 400             &sc->sc_ctrl_iface_index, sc->sc_ctrl_xfer,
 401             ufoma_ctrl_config, UFOMA_CTRL_ENDPT_MAX, sc, &sc->sc_mtx);
 402
 403         if (error) {
 404                 device_printf(dev, "allocating control USB "
 405                     "transfers failed\n");
 406                 goto detach;
 407         }
 408         mad = ufoma_get_intconf(cd, id, UDESC_VS_INTERFACE, UDESCSUB_MCPC_ACM);
 409         if (mad == NULL) {
 410                 goto detach;
 411         }
 412         if (mad->bFunctionLength < sizeof(*mad)) {
 413                 device_printf(dev, "invalid MAD descriptor\n");
 414                 goto detach;
 415         }
 416         if ((mad->bType == UMCPC_ACM_TYPE_AB5) ||
 417             (mad->bType == UMCPC_ACM_TYPE_AB6)) {
 418                 sc->sc_nobulk = 1;
 419         } else {
 420                 sc->sc_nobulk = 0;
 421                 if (ufoma_modem_setup(dev, sc, uaa)) {
 422                         goto detach;
 423                 }
 424         }
 425
 426         elements = (mad->bFunctionLength - sizeof(*mad) + 1);
 427
 428         /* initialize mode variables */
 429
 430         sc->sc_modetable = malloc(elements + 1, M_USBDEV, M_WAITOK);
 431
 432         if (sc->sc_modetable == NULL) {
 433                 goto detach;
 434         }
 435         sc->sc_modetable[0] = (elements + 1);
 436         memcpy(&sc->sc_modetable[1], mad->bMode, elements);
 437
 438         sc->sc_currentmode = UMCPC_ACM_MODE_UNLINKED;
 439         sc->sc_modetoactivate = mad->bMode[0];
 440
 441         /* clear stall at first run, if any */
 442         mtx_lock(&sc->sc_mtx);
 443         usbd_xfer_set_stall(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_WRITE]);
 444         usbd_xfer_set_stall(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_READ]);
 445         mtx_unlock(&sc->sc_mtx);
 446
 447         error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc,
 448             &ufoma_callback, &sc->sc_mtx);
 449         if (error) {
 450                 DPRINTF("ucom_attach failed\n");
 451                 goto detach;
 452         }
 453         ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
 454
 455         /*Sysctls*/
 456         sctx = device_get_sysctl_ctx(dev);
 457         soid = device_get_sysctl_tree(dev);
 458
 459         SYSCTL_ADD_PROC(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "supportmode",
 460                         CTLFLAG_RD|CTLTYPE_STRING, sc, 0, ufoma_sysctl_support,
 461                         "A", "Supporting port role");
 462
 463         SYSCTL_ADD_PROC(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "currentmode",
 464                         CTLFLAG_RD|CTLTYPE_STRING, sc, 0, ufoma_sysctl_current,
 465                         "A", "Current port role");
 466
 467         SYSCTL_ADD_PROC(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "openmode",
 468                         CTLFLAG_RW|CTLTYPE_STRING, sc, 0, ufoma_sysctl_open,
 469                         "A", "Mode to transit when port is opened");
 470         SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "comunit",
 471                         CTLFLAG_RD, &(sc->sc_super_ucom.sc_unit), 0,
 472                         "Unit number as USB serial");
 473
 474         return (0);                     /* success */
 475
 476 detach:
 477         ufoma_detach(dev);
 478         return (ENXIO);                 /* failure */
 479 }
 480
 481 static int
 482 ufoma_detach(device_t dev)
 483 {
 484         struct ufoma_softc *sc = device_get_softc(dev);
 485
 486         ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom);
 487         usbd_transfer_unsetup(sc->sc_ctrl_xfer, UFOMA_CTRL_ENDPT_MAX);
 488         usbd_transfer_unsetup(sc->sc_bulk_xfer, UFOMA_BULK_ENDPT_MAX);
 489
 490         if (sc->sc_modetable) {
 491                 free(sc->sc_modetable, M_USBDEV);
 492         }
 493         cv_destroy(&sc->sc_cv);
 494
 495         device_claim_softc(dev);
 496
 497         ufoma_free_softc(sc);
 498
 499         return (0);
 500 }
 501
 502 UCOM_UNLOAD_DRAIN(ufoma);
 503
 504 static void
 505 ufoma_free_softc(struct ufoma_softc *sc)
 506 {
 507         if (ucom_unref(&sc->sc_super_ucom)) {
 508                 mtx_destroy(&sc->sc_mtx);
 509                 device_free_softc(sc);
 510         }
 511 }
 512
 513 static void
 514 ufoma_free(struct ucom_softc *ucom)
 515 {
 516         ufoma_free_softc(ucom->sc_parent);
 517 }
 518
 519 static void *
 520 ufoma_get_intconf(struct usb_config_descriptor *cd, struct usb_interface_descriptor *id,
 521     uint8_t type, uint8_t subtype)
 522 {
 523         struct usb_descriptor *desc = (void *)id;
 524
 525         while ((desc = usb_desc_foreach(cd, desc))) {
 526
 527                 if (desc->bDescriptorType == UDESC_INTERFACE) {
 528                         return (NULL);
 529                 }
 530                 if ((desc->bDescriptorType == type) &&
 531                     (desc->bDescriptorSubtype == subtype)) {
 532                         break;
 533                 }
 534         }
 535         return (desc);
 536 }
 537
 538 static void
 539 ufoma_cfg_link_state(struct ufoma_softc *sc)
 540 {
 541         struct usb_device_request req;
 542         int32_t error;
 543
 544         req.bmRequestType = UT_WRITE_VENDOR_INTERFACE;
 545         req.bRequest = UMCPC_SET_LINK;
 546         USETW(req.wValue, UMCPC_CM_MOBILE_ACM);
 547         USETW(req.wIndex, sc->sc_ctrl_iface_no);
 548         USETW(req.wLength, sc->sc_modetable[0]);
 549
 550         ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
 551             &req, sc->sc_modetable, 0, 1000);
 552
 553         error = cv_timedwait(&sc->sc_cv, &sc->sc_mtx, hz);
 554
 555         if (error) {
 556                 DPRINTF("NO response\n");
 557         }
 558 }
 559
 560 static void
 561 ufoma_cfg_activate_state(struct ufoma_softc *sc, uint16_t state)
 562 {
 563         struct usb_device_request req;
 564         int32_t error;
 565
 566         req.bmRequestType = UT_WRITE_VENDOR_INTERFACE;
 567         req.bRequest = UMCPC_ACTIVATE_MODE;
 568         USETW(req.wValue, state);
 569         USETW(req.wIndex, sc->sc_ctrl_iface_no);
 570         USETW(req.wLength, 0);
 571
 572         ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
 573             &req, NULL, 0, 1000);
 574
 575         error = cv_timedwait(&sc->sc_cv, &sc->sc_mtx,
 576             (UFOMA_MAX_TIMEOUT * hz));
 577         if (error) {
 578                 DPRINTF("No response\n");
 579         }
 580 }
 581
 582 static void
 583 ufoma_ctrl_read_callback(struct usb_xfer *xfer, usb_error_t error)
 584 {
 585         struct ufoma_softc *sc = usbd_xfer_softc(xfer);
 586         struct usb_device_request req;
 587         struct usb_page_cache *pc0, *pc1;
 588         int len, aframes, nframes;
 589
 590         usbd_xfer_status(xfer, NULL, NULL, &aframes, &nframes);
 591
 592         switch (USB_GET_STATE(xfer)) {
 593         case USB_ST_TRANSFERRED:
 594 tr_transferred:
 595                 if (aframes != nframes)
 596                         goto tr_setup;
 597                 pc1 = usbd_xfer_get_frame(xfer, 1);
 598                 len = usbd_xfer_frame_len(xfer, 1);
 599                 if (len > 0)
 600                         ucom_put_data(&sc->sc_ucom, pc1, 0, len);
 601                 /* FALLTHROUGH */
 602         case USB_ST_SETUP:
 603 tr_setup:
 604                 if (sc->sc_num_msg) {
 605                         sc->sc_num_msg--;
 606
 607                         req.bmRequestType = UT_READ_CLASS_INTERFACE;
 608                         req.bRequest = UCDC_GET_ENCAPSULATED_RESPONSE;
 609                         USETW(req.wIndex, sc->sc_ctrl_iface_no);
 610                         USETW(req.wValue, 0);
 611                         USETW(req.wLength, UFOMA_CMD_BUF_SIZE);
 612
 613                         pc0 = usbd_xfer_get_frame(xfer, 0);
 614                         usbd_copy_in(pc0, 0, &req, sizeof(req));
 615
 616                         usbd_xfer_set_frame_len(xfer, 0, sizeof(req));
 617                         usbd_xfer_set_frame_len(xfer, 1, UFOMA_CMD_BUF_SIZE);
 618                         usbd_xfer_set_frames(xfer, 2);
 619                         usbd_transfer_submit(xfer);
 620                 }
 621                 return;
 622
 623         default:                        /* Error */
 624                 DPRINTF("error = %s\n",
 625                     usbd_errstr(error));
 626
 627                 if (error == USB_ERR_CANCELLED) {
 628                         return;
 629                 }
 630                 goto tr_transferred;
 631         }
 632 }
 633
 634 static void
 635 ufoma_ctrl_write_callback(struct usb_xfer *xfer, usb_error_t error)
 636 {
 637         struct ufoma_softc *sc = usbd_xfer_softc(xfer);
 638         struct usb_device_request req;
 639         struct usb_page_cache *pc;
 640         uint32_t actlen;
 641
 642         switch (USB_GET_STATE(xfer)) {
 643         case USB_ST_TRANSFERRED:
 644 tr_transferred:
 645         case USB_ST_SETUP:
 646                 pc = usbd_xfer_get_frame(xfer, 1);
 647                 if (ucom_get_data(&sc->sc_ucom, pc, 0, 1, &actlen)) {
 648
 649                         req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
 650                         req.bRequest = UCDC_SEND_ENCAPSULATED_COMMAND;
 651                         USETW(req.wIndex, sc->sc_ctrl_iface_no);
 652                         USETW(req.wValue, 0);
 653                         USETW(req.wLength, 1);
 654
 655                         pc = usbd_xfer_get_frame(xfer, 0);
 656                         usbd_copy_in(pc, 0, &req, sizeof(req));
 657
 658                         usbd_xfer_set_frame_len(xfer, 0, sizeof(req));
 659                         usbd_xfer_set_frame_len(xfer, 1, 1);
 660                         usbd_xfer_set_frames(xfer, 2);
 661
 662                         usbd_transfer_submit(xfer);
 663                 }
 664                 return;
 665
 666         default:                        /* Error */
 667                 DPRINTF("error = %s\n", usbd_errstr(error));
 668
 669                 if (error == USB_ERR_CANCELLED) {
 670                         return;
 671                 }
 672                 goto tr_transferred;
 673         }
 674 }
 675
 676 static void
 677 ufoma_intr_callback(struct usb_xfer *xfer, usb_error_t error)
 678 {
 679         struct ufoma_softc *sc = usbd_xfer_softc(xfer);
 680         struct usb_cdc_notification pkt;
 681         struct usb_page_cache *pc;
 682         uint16_t wLen;
 683         uint16_t temp;
 684         uint8_t mstatus;
 685         int actlen;
 686
 687         usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
 688
 689         switch (USB_GET_STATE(xfer)) {
 690         case USB_ST_TRANSFERRED:
 691                 if (actlen < 8) {
 692                         DPRINTF("too short message\n");
 693                         goto tr_setup;
 694                 }
 695                 if (actlen > (int)sizeof(pkt)) {
 696                         DPRINTF("truncating message\n");
 697                         actlen = sizeof(pkt);
 698                 }
 699                 pc = usbd_xfer_get_frame(xfer, 0);
 700                 usbd_copy_out(pc, 0, &pkt, actlen);
 701
 702                 actlen -= 8;
 703
 704                 wLen = UGETW(pkt.wLength);
 705                 if (actlen > wLen) {
 706                         actlen = wLen;
 707                 }
 708                 if ((pkt.bmRequestType == UT_READ_VENDOR_INTERFACE) &&
 709                     (pkt.bNotification == UMCPC_REQUEST_ACKNOWLEDGE)) {
 710                         temp = UGETW(pkt.wValue);
 711                         sc->sc_currentmode = (temp >> 8);
 712                         if (!(temp & 0xff)) {
 713                                 DPRINTF("Mode change failed!\n");
 714                         }
 715                         cv_signal(&sc->sc_cv);
 716                 }
 717                 if (pkt.bmRequestType != UCDC_NOTIFICATION) {
 718                         goto tr_setup;
 719                 }
 720                 switch (pkt.bNotification) {
 721                 case UCDC_N_RESPONSE_AVAILABLE:
 722                         if (!(sc->sc_nobulk)) {
 723                                 DPRINTF("Wrong serial state!\n");
 724                                 break;
 725                         }
 726                         if (sc->sc_num_msg != 0xFF) {
 727                                 sc->sc_num_msg++;
 728                         }
 729                         usbd_transfer_start(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_READ]);
 730                         break;
 731
 732                 case UCDC_N_SERIAL_STATE:
 733                         if (sc->sc_nobulk) {
 734                                 DPRINTF("Wrong serial state!\n");
 735                                 break;
 736                         }
 737                         /*
 738                          * Set the serial state in ucom driver based on
 739                          * the bits from the notify message
 740                          */
 741                         if (actlen < 2) {
 742                                 DPRINTF("invalid notification "
 743                                     "length, %d bytes!\n", actlen);
 744                                 break;
 745                         }
 746                         DPRINTF("notify bytes = 0x%02x, 0x%02x\n",
 747                             pkt.data[0], pkt.data[1]);
 748
 749                         /* currently, lsr is always zero. */
 750                         sc->sc_lsr = 0;
 751                         sc->sc_msr = 0;
 752
 753                         mstatus = pkt.data[0];
 754
 755                         if (mstatus & UCDC_N_SERIAL_RI) {
 756                                 sc->sc_msr |= SER_RI;
 757                         }
 758                         if (mstatus & UCDC_N_SERIAL_DSR) {
 759                                 sc->sc_msr |= SER_DSR;
 760                         }
 761                         if (mstatus & UCDC_N_SERIAL_DCD) {
 762                                 sc->sc_msr |= SER_DCD;
 763                         }
 764                         ucom_status_change(&sc->sc_ucom);
 765                         break;
 766
 767                 default:
 768                         break;
 769                 }
 770
 771         case USB_ST_SETUP:
 772 tr_setup:
 773                 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
 774                 usbd_transfer_submit(xfer);
 775                 return;
 776
 777         default:                        /* Error */
 778                 if (error != USB_ERR_CANCELLED) {
 779                         /* try to clear stall first */
 780                         usbd_xfer_set_stall(xfer);
 781                         goto tr_setup;
 782                 }
 783                 return;
 784         }
 785 }
 786
 787 static void
 788 ufoma_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
 789 {
 790         struct ufoma_softc *sc = usbd_xfer_softc(xfer);
 791         struct usb_page_cache *pc;
 792         uint32_t actlen;
 793
 794         switch (USB_GET_STATE(xfer)) {
 795         case USB_ST_SETUP:
 796         case USB_ST_TRANSFERRED:
 797 tr_setup:
 798                 pc = usbd_xfer_get_frame(xfer, 0);
 799                 if (ucom_get_data(&sc->sc_ucom, pc, 0,
 800                     UFOMA_BULK_BUF_SIZE, &actlen)) {
 801                         usbd_xfer_set_frame_len(xfer, 0, actlen);
 802                         usbd_transfer_submit(xfer);
 803                 }
 804                 return;
 805
 806         default:                        /* Error */
 807                 if (error != USB_ERR_CANCELLED) {
 808                         /* try to clear stall first */
 809                         usbd_xfer_set_stall(xfer);
 810                         goto tr_setup;
 811                 }
 812                 return;
 813         }
 814 }
 815
 816 static void
 817 ufoma_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
 818 {
 819         struct ufoma_softc *sc = usbd_xfer_softc(xfer);
 820         struct usb_page_cache *pc;
 821         int actlen;
 822
 823         usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
 824
 825         switch (USB_GET_STATE(xfer)) {
 826         case USB_ST_TRANSFERRED:
 827                 pc = usbd_xfer_get_frame(xfer, 0);
 828                 ucom_put_data(&sc->sc_ucom, pc, 0, actlen);
 829
 830         case USB_ST_SETUP:
 831 tr_setup:
 832                 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
 833                 usbd_transfer_submit(xfer);
 834                 return;
 835
 836         default:                        /* Error */
 837                 if (error != USB_ERR_CANCELLED) {
 838                         /* try to clear stall first */
 839                         usbd_xfer_set_stall(xfer);
 840                         goto tr_setup;
 841                 }
 842                 return;
 843         }
 844 }
 845
 846 static void
 847 ufoma_cfg_open(struct ucom_softc *ucom)
 848 {
 849         struct ufoma_softc *sc = ucom->sc_parent;
 850
 851         /* empty input queue */
 852
 853         if (sc->sc_num_msg != 0xFF) {
 854                 sc->sc_num_msg++;
 855         }
 856         if (sc->sc_currentmode == UMCPC_ACM_MODE_UNLINKED) {
 857                 ufoma_cfg_link_state(sc);
 858         }
 859         if (sc->sc_currentmode == UMCPC_ACM_MODE_DEACTIVATED) {
 860                 ufoma_cfg_activate_state(sc, sc->sc_modetoactivate);
 861         }
 862 }
 863
 864 static void
 865 ufoma_cfg_close(struct ucom_softc *ucom)
 866 {
 867         struct ufoma_softc *sc = ucom->sc_parent;
 868
 869         ufoma_cfg_activate_state(sc, UMCPC_ACM_MODE_DEACTIVATED);
 870 }
 871
 872 static void
 873 ufoma_cfg_set_break(struct ucom_softc *ucom, uint8_t onoff)
 874 {
 875         struct ufoma_softc *sc = ucom->sc_parent;
 876         struct usb_device_request req;
 877         uint16_t wValue;
 878
 879         if (sc->sc_nobulk ||
 880             (sc->sc_currentmode == UMCPC_ACM_MODE_OBEX)) {
 881                 return;
 882         }
 883         if (!(sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK)) {
 884                 return;
 885         }
 886         wValue = onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF;
 887
 888         req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
 889         req.bRequest = UCDC_SEND_BREAK;
 890         USETW(req.wValue, wValue);
 891         req.wIndex[0] = sc->sc_ctrl_iface_no;
 892         req.wIndex[1] = 0;
 893         USETW(req.wLength, 0);
 894
 895         ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
 896             &req, NULL, 0, 1000);
 897 }
 898
 899 static void
 900 ufoma_cfg_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr)
 901 {
 902         struct ufoma_softc *sc = ucom->sc_parent;
 903
 904         /* XXX Note: sc_lsr is always zero */
 905         *lsr = sc->sc_lsr;
 906         *msr = sc->sc_msr;
 907 }
 908
 909 static void
 910 ufoma_cfg_set_line_state(struct ufoma_softc *sc)
 911 {
 912         struct usb_device_request req;
 913
 914         /* Don't send line state emulation request for OBEX port */
 915         if (sc->sc_currentmode == UMCPC_ACM_MODE_OBEX) {
 916                 return;
 917         }
 918         req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
 919         req.bRequest = UCDC_SET_CONTROL_LINE_STATE;
 920         USETW(req.wValue, sc->sc_line);
 921         req.wIndex[0] = sc->sc_ctrl_iface_no;
 922         req.wIndex[1] = 0;
 923         USETW(req.wLength, 0);
 924
 925         ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
 926             &req, NULL, 0, 1000);
 927 }
 928
 929 static void
 930 ufoma_cfg_set_dtr(struct ucom_softc *ucom, uint8_t onoff)
 931 {
 932         struct ufoma_softc *sc = ucom->sc_parent;
 933
 934         if (sc->sc_nobulk) {
 935                 return;
 936         }
 937         if (onoff)
 938                 sc->sc_line |= UCDC_LINE_DTR;
 939         else
 940                 sc->sc_line &= ~UCDC_LINE_DTR;
 941
 942         ufoma_cfg_set_line_state(sc);
 943 }
 944
 945 static void
 946 ufoma_cfg_set_rts(struct ucom_softc *ucom, uint8_t onoff)
 947 {
 948         struct ufoma_softc *sc = ucom->sc_parent;
 949
 950         if (sc->sc_nobulk) {
 951                 return;
 952         }
 953         if (onoff)
 954                 sc->sc_line |= UCDC_LINE_RTS;
 955         else
 956                 sc->sc_line &= ~UCDC_LINE_RTS;
 957
 958         ufoma_cfg_set_line_state(sc);
 959 }
 960
 961 static int
 962 ufoma_pre_param(struct ucom_softc *ucom, struct termios *t)
 963 {
 964         return (0);                     /* we accept anything */
 965 }
 966
 967 static void
 968 ufoma_cfg_param(struct ucom_softc *ucom, struct termios *t)
 969 {
 970         struct ufoma_softc *sc = ucom->sc_parent;
 971         struct usb_device_request req;
 972         struct usb_cdc_line_state ls;
 973
 974         if (sc->sc_nobulk ||
 975             (sc->sc_currentmode == UMCPC_ACM_MODE_OBEX)) {
 976                 return;
 977         }
 978         DPRINTF("\n");
 979
 980         memset(&ls, 0, sizeof(ls));
 981
 982         USETDW(ls.dwDTERate, t->c_ospeed);
 983
 984         if (t->c_cflag & CSTOPB) {
 985                 ls.bCharFormat = UCDC_STOP_BIT_2;
 986         } else {
 987                 ls.bCharFormat = UCDC_STOP_BIT_1;
 988         }
 989
 990         if (t->c_cflag & PARENB) {
 991                 if (t->c_cflag & PARODD) {
 992                         ls.bParityType = UCDC_PARITY_ODD;
 993                 } else {
 994                         ls.bParityType = UCDC_PARITY_EVEN;
 995                 }
 996         } else {
 997                 ls.bParityType = UCDC_PARITY_NONE;
 998         }
 999
1000         switch (t->c_cflag & CSIZE) {
1001         case CS5:
1002                 ls.bDataBits = 5;
1003                 break;
1004         case CS6:
1005                 ls.bDataBits = 6;
1006                 break;
1007         case CS7:
1008                 ls.bDataBits = 7;
1009                 break;
1010         case CS8:
1011                 ls.bDataBits = 8;
1012                 break;
1013         }
1014
1015         req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
1016         req.bRequest = UCDC_SET_LINE_CODING;
1017         USETW(req.wValue, 0);
1018         req.wIndex[0] = sc->sc_ctrl_iface_no;
1019         req.wIndex[1] = 0;
1020         USETW(req.wLength, UCDC_LINE_STATE_LENGTH);
1021
1022         ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
1023             &req, &ls, 0, 1000);
1024 }
1025
1026 static int
1027 ufoma_modem_setup(device_t dev, struct ufoma_softc *sc,
1028     struct usb_attach_arg *uaa)
1029 {
1030         struct usb_config_descriptor *cd;
1031         struct usb_cdc_acm_descriptor *acm;
1032         struct usb_cdc_cm_descriptor *cmd;
1033         struct usb_interface_descriptor *id;
1034         struct usb_interface *iface;
1035         uint8_t i;
1036         int32_t error;
1037
1038         cd = usbd_get_config_descriptor(uaa->device);
1039         id = usbd_get_interface_descriptor(uaa->iface);
1040
1041         cmd = ufoma_get_intconf(cd, id, UDESC_CS_INTERFACE, UDESCSUB_CDC_CM);
1042
1043         if ((cmd == NULL) ||
1044             (cmd->bLength < sizeof(*cmd))) {
1045                 return (EINVAL);
1046         }
1047         sc->sc_cm_cap = cmd->bmCapabilities;
1048         sc->sc_data_iface_no = cmd->bDataInterface;
1049
1050         acm = ufoma_get_intconf(cd, id, UDESC_CS_INTERFACE, UDESCSUB_CDC_ACM);
1051
1052         if ((acm == NULL) ||
1053             (acm->bLength < sizeof(*acm))) {
1054                 return (EINVAL);
1055         }
1056         sc->sc_acm_cap = acm->bmCapabilities;
1057
1058         device_printf(dev, "data interface %d, has %sCM over data, "
1059             "has %sbreak\n",
1060             sc->sc_data_iface_no,
1061             sc->sc_cm_cap & USB_CDC_CM_OVER_DATA ? "" : "no ",
1062             sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK ? "" : "no ");
1063
1064         /* get the data interface too */
1065
1066         for (i = 0;; i++) {
1067
1068                 iface = usbd_get_iface(uaa->device, i);
1069
1070                 if (iface) {
1071
1072                         id = usbd_get_interface_descriptor(iface);
1073
1074                         if (id && (id->bInterfaceNumber == sc->sc_data_iface_no)) {
1075                                 sc->sc_data_iface_index = i;
1076                                 usbd_set_parent_iface(uaa->device, i, uaa->info.bIfaceIndex);
1077                                 break;
1078                         }
1079                 } else {
1080                         device_printf(dev, "no data interface\n");
1081                         return (EINVAL);
1082                 }
1083         }
1084
1085         error = usbd_transfer_setup(uaa->device,
1086             &sc->sc_data_iface_index, sc->sc_bulk_xfer,
1087             ufoma_bulk_config, UFOMA_BULK_ENDPT_MAX, sc, &sc->sc_mtx);
1088
1089         if (error) {
1090                 device_printf(dev, "allocating BULK USB "
1091                     "transfers failed\n");
1092                 return (EINVAL);
1093         }
1094         return (0);
1095 }
1096
1097 static void
1098 ufoma_start_read(struct ucom_softc *ucom)
1099 {
1100         struct ufoma_softc *sc = ucom->sc_parent;
1101
1102         /* start interrupt transfer */
1103         usbd_transfer_start(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_INTR]);
1104
1105         /* start data transfer */
1106         if (sc->sc_nobulk) {
1107                 usbd_transfer_start(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_READ]);
1108         } else {
1109                 usbd_transfer_start(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_READ]);
1110         }
1111 }
1112
1113 static void
1114 ufoma_stop_read(struct ucom_softc *ucom)
1115 {
1116         struct ufoma_softc *sc = ucom->sc_parent;
1117
1118         /* stop interrupt transfer */
1119         usbd_transfer_stop(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_INTR]);
1120
1121         /* stop data transfer */
1122         if (sc->sc_nobulk) {
1123                 usbd_transfer_stop(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_READ]);
1124         } else {
1125                 usbd_transfer_stop(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_READ]);
1126         }
1127 }
1128
1129 static void
1130 ufoma_start_write(struct ucom_softc *ucom)
1131 {
1132         struct ufoma_softc *sc = ucom->sc_parent;
1133
1134         if (sc->sc_nobulk) {
1135                 usbd_transfer_start(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_WRITE]);
1136         } else {
1137                 usbd_transfer_start(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_WRITE]);
1138         }
1139 }
1140
1141 static void
1142 ufoma_stop_write(struct ucom_softc *ucom)
1143 {
1144         struct ufoma_softc *sc = ucom->sc_parent;
1145
1146         if (sc->sc_nobulk) {
1147                 usbd_transfer_stop(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_WRITE]);
1148         } else {
1149                 usbd_transfer_stop(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_WRITE]);
1150         }
1151 }
1152
1153 static struct umcpc_modetostr_tab{
1154         int mode;
1155         char *str;
1156 }umcpc_modetostr_tab[]={
1157         {UMCPC_ACM_MODE_DEACTIVATED, "deactivated"},
1158         {UMCPC_ACM_MODE_MODEM, "modem"},
1159         {UMCPC_ACM_MODE_ATCOMMAND, "handsfree"},
1160         {UMCPC_ACM_MODE_OBEX, "obex"},
1161         {UMCPC_ACM_MODE_VENDOR1, "vendor1"},
1162         {UMCPC_ACM_MODE_VENDOR2, "vendor2"},
1163         {UMCPC_ACM_MODE_UNLINKED, "unlinked"},
1164         {0, NULL}
1165 };
1166
1167 static char *ufoma_mode_to_str(int mode)
1168 {
1169         int i;
1170         for(i = 0 ;umcpc_modetostr_tab[i].str != NULL; i++){
1171                 if(umcpc_modetostr_tab[i].mode == mode){
1172                         return umcpc_modetostr_tab[i].str;
1173                 }
1174         }
1175         return NULL;
1176 }
1177
1178 static int ufoma_str_to_mode(char *str)
1179 {
1180         int i;
1181         for(i = 0 ;umcpc_modetostr_tab[i].str != NULL; i++){
1182                 if(strcmp(str, umcpc_modetostr_tab[i].str)==0){
1183                         return umcpc_modetostr_tab[i].mode;
1184                 }
1185         }
1186         return -1;
1187 }
1188
1189 static int ufoma_sysctl_support(SYSCTL_HANDLER_ARGS)
1190 {
1191         struct ufoma_softc *sc = (struct ufoma_softc *)oidp->oid_arg1;
1192         struct sbuf sb;
1193         int i;
1194         char *mode;
1195
1196         sbuf_new(&sb, NULL, 1, SBUF_AUTOEXTEND);
1197         for(i = 1; i < sc->sc_modetable[0]; i++){
1198                 mode = ufoma_mode_to_str(sc->sc_modetable[i]);
1199                 if(mode !=NULL){
1200                         sbuf_cat(&sb, mode);
1201                 }else{
1202                         sbuf_printf(&sb, "(%02x)", sc->sc_modetable[i]);
1203                 }
1204                 if(i < (sc->sc_modetable[0]-1))
1205                         sbuf_cat(&sb, ",");
1206         }
1207         sbuf_trim(&sb);
1208         sbuf_finish(&sb);
1209         sysctl_handle_string(oidp, sbuf_data(&sb), sbuf_len(&sb), req);
1210         sbuf_delete(&sb);
1211
1212         return 0;
1213 }
1214 static int ufoma_sysctl_current(SYSCTL_HANDLER_ARGS)
1215 {
1216         struct ufoma_softc *sc = (struct ufoma_softc *)oidp->oid_arg1;
1217         char *mode;
1218         char subbuf[]="(XXX)";
1219         mode = ufoma_mode_to_str(sc->sc_currentmode);
1220         if(!mode){
1221                 mode = subbuf;
1222                 snprintf(subbuf, sizeof(subbuf), "(%02x)", sc->sc_currentmode);
1223         }
1224         sysctl_handle_string(oidp, mode, strlen(mode), req);
1225
1226         return 0;
1227
1228 }
1229 static int ufoma_sysctl_open(SYSCTL_HANDLER_ARGS)
1230 {
1231         struct ufoma_softc *sc = (struct ufoma_softc *)oidp->oid_arg1;
1232         char *mode;
1233         char subbuf[40];
1234         int newmode;
1235         int error;
1236         int i;
1237
1238         mode = ufoma_mode_to_str(sc->sc_modetoactivate);
1239         if(mode){
1240                 strncpy(subbuf, mode, sizeof(subbuf));
1241         }else{
1242                 snprintf(subbuf, sizeof(subbuf), "(%02x)", sc->sc_modetoactivate);
1243         }
1244         error = sysctl_handle_string(oidp, subbuf, sizeof(subbuf), req);
1245         if(error != 0 || req->newptr == NULL){
1246                 return error;
1247         }
1248
1249         if((newmode = ufoma_str_to_mode(subbuf)) == -1){
1250                 return EINVAL;
1251         }
1252
1253         for(i = 1 ; i < sc->sc_modetable[0] ; i++){
1254                 if(sc->sc_modetable[i] == newmode){
1255                         sc->sc_modetoactivate = newmode;
1256                         return 0;
1257                 }
1258         }
1259
1260         return EINVAL;
1261 }
1262
1263 static void
1264 ufoma_poll(struct ucom_softc *ucom)
1265 {
1266         struct ufoma_softc *sc = ucom->sc_parent;
1267         usbd_transfer_poll(sc->sc_ctrl_xfer, UFOMA_CTRL_ENDPT_MAX);
1268         usbd_transfer_poll(sc->sc_bulk_xfer, UFOMA_BULK_ENDPT_MAX);
1269 }