sys/dev/usb/serial/ufoma.c

   1 /*      $NetBSD: umodem.c,v 1.45 2002/09/23 05:51:23 simonb Exp $       */
   2
   3 #include <sys/cdefs.h>
   4 __FBSDID("$FreeBSD$");
   5 #define UFOMA_HANDSFREE
   6 /*-
   7  * Copyright (c) 2005, Takanori Watanabe
   8  * Copyright (c) 2003, M. Warner Losh <imp@FreeBSD.org>.
   9  * All rights reserved.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  */
  32
  33 /*-
  34  * Copyright (c) 1998 The NetBSD Foundation, Inc.
  35  * All rights reserved.
  36  *
  37  * This code is derived from software contributed to The NetBSD Foundation
  38  * by Lennart Augustsson (lennart@augustsson.net) at
  39  * Carlstedt Research & Technology.
  40  *
  41  * Redistribution and use in source and binary forms, with or without
  42  * modification, are permitted provided that the following conditions
  43  * are met:
  44  * 1. Redistributions of source code must retain the above copyright
  45  *    notice, this list of conditions and the following disclaimer.
  46  * 2. Redistributions in binary form must reproduce the above copyright
  47  *    notice, this list of conditions and the following disclaimer in the
  48  *    documentation and/or other materials provided with the distribution.
  49  *
  50  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  51  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  52  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  53  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  54  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  55  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  56  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  57  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  58  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  59  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  60  * POSSIBILITY OF SUCH DAMAGE.
  61  */
  62
  63 /*
  64  * Comm Class spec:  http://www.usb.org/developers/devclass_docs/usbccs10.pdf
  65  *                   http://www.usb.org/developers/devclass_docs/usbcdc11.pdf
  66  */
  67
  68 /*
  69  * TODO:
  70  * - Implement a Call Device for modems without multiplexed commands.
  71  */
  72
  73 /*
  74  * NOTE: all function names beginning like "ufoma_cfg_" can only
  75  * be called from within the config thread function !
  76  */
  77
  78 #include <sys/stdint.h>
  79 #include <sys/stddef.h>
  80 #include <sys/param.h>
  81 #include <sys/queue.h>
  82 #include <sys/types.h>
  83 #include <sys/systm.h>
  84 #include <sys/kernel.h>
  85 #include <sys/bus.h>
  86 #include <sys/module.h>
  87 #include <sys/lock.h>
  88 #include <sys/mutex.h>
  89 #include <sys/condvar.h>
  90 #include <sys/sysctl.h>
  91 #include <sys/sx.h>
  92 #include <sys/unistd.h>
  93 #include <sys/callout.h>
  94 #include <sys/malloc.h>
  95 #include <sys/priv.h>
  96 #include <sys/sbuf.h>
  97
  98 #include <dev/usb/usb.h>
  99 #include <dev/usb/usbdi.h>
 100 #include <dev/usb/usbdi_util.h>
 101 #include <dev/usb/usb_cdc.h>
 102 #include "usbdevs.h"
 103
 104 #define USB_DEBUG_VAR usb_debug
 105 #include <dev/usb/usb_debug.h>
 106 #include <dev/usb/usb_process.h>
 107
 108 #include <dev/usb/serial/usb_serial.h>
 109
 110 typedef struct ufoma_mobile_acm_descriptor {
 111         uint8_t bFunctionLength;
 112         uint8_t bDescriptorType;
 113         uint8_t bDescriptorSubtype;
 114         uint8_t bType;
 115         uint8_t bMode[1];
 116 } __packed usb_mcpc_acm_descriptor;
 117
 118 #define UISUBCLASS_MCPC 0x88
 119
 120 #define UDESC_VS_INTERFACE 0x44
 121 #define UDESCSUB_MCPC_ACM  0x11
 122
 123 #define UMCPC_ACM_TYPE_AB1 0x1
 124 #define UMCPC_ACM_TYPE_AB2 0x2
 125 #define UMCPC_ACM_TYPE_AB5 0x5
 126 #define UMCPC_ACM_TYPE_AB6 0x6
 127
 128 #define UMCPC_ACM_MODE_DEACTIVATED 0x0
 129 #define UMCPC_ACM_MODE_MODEM 0x1
 130 #define UMCPC_ACM_MODE_ATCOMMAND 0x2
 131 #define UMCPC_ACM_MODE_OBEX 0x60
 132 #define UMCPC_ACM_MODE_VENDOR1 0xc0
 133 #define UMCPC_ACM_MODE_VENDOR2 0xfe
 134 #define UMCPC_ACM_MODE_UNLINKED 0xff
 135
 136 #define UMCPC_CM_MOBILE_ACM 0x0
 137
 138 #define UMCPC_ACTIVATE_MODE 0x60
 139 #define UMCPC_GET_MODETABLE 0x61
 140 #define UMCPC_SET_LINK 0x62
 141 #define UMCPC_CLEAR_LINK 0x63
 142
 143 #define UMCPC_REQUEST_ACKNOWLEDGE 0x31
 144
 145 #define UFOMA_MAX_TIMEOUT 15            /* standard says 10 seconds */
 146 #define UFOMA_CMD_BUF_SIZE 64           /* bytes */
 147
 148 #define UFOMA_BULK_BUF_SIZE 1024        /* bytes */
 149
 150 enum {
 151         UFOMA_CTRL_ENDPT_INTR,
 152         UFOMA_CTRL_ENDPT_READ,
 153         UFOMA_CTRL_ENDPT_WRITE,
 154         UFOMA_CTRL_ENDPT_MAX,
 155 };
 156
 157 enum {
 158         UFOMA_BULK_ENDPT_WRITE,
 159         UFOMA_BULK_ENDPT_READ,
 160         UFOMA_BULK_ENDPT_MAX,
 161 };
 162
 163 struct ufoma_softc {
 164         struct ucom_super_softc sc_super_ucom;
 165         struct ucom_softc sc_ucom;
 166         struct cv sc_cv;
 167         struct mtx sc_mtx;
 168
 169         struct usb_xfer *sc_ctrl_xfer[UFOMA_CTRL_ENDPT_MAX];
 170         struct usb_xfer *sc_bulk_xfer[UFOMA_BULK_ENDPT_MAX];
 171         uint8_t *sc_modetable;
 172         device_t sc_dev;
 173         struct usb_device *sc_udev;
 174
 175         uint32_t sc_unit;
 176
 177         uint16_t sc_line;
 178
 179         uint8_t sc_num_msg;
 180         uint8_t sc_nobulk;
 181         uint8_t sc_ctrl_iface_no;
 182         uint8_t sc_ctrl_iface_index;
 183         uint8_t sc_data_iface_no;
 184         uint8_t sc_data_iface_index;
 185         uint8_t sc_cm_cap;
 186         uint8_t sc_acm_cap;
 187         uint8_t sc_lsr;
 188         uint8_t sc_msr;
 189         uint8_t sc_modetoactivate;
 190         uint8_t sc_currentmode;
 191 };
 192
 193 /* prototypes */
 194
 195 static device_probe_t ufoma_probe;
 196 static device_attach_t ufoma_attach;
 197 static device_detach_t ufoma_detach;
 198 static void ufoma_free_softc(struct ufoma_softc *);
 199
 200 static usb_callback_t ufoma_ctrl_read_callback;
 201 static usb_callback_t ufoma_ctrl_write_callback;
 202 static usb_callback_t ufoma_intr_callback;
 203 static usb_callback_t ufoma_bulk_write_callback;
 204 static usb_callback_t ufoma_bulk_read_callback;
 205
 206 static void     *ufoma_get_intconf(struct usb_config_descriptor *,
 207                     struct usb_interface_descriptor *, uint8_t, uint8_t);
 208 static void     ufoma_cfg_link_state(struct ufoma_softc *);
 209 static void     ufoma_cfg_activate_state(struct ufoma_softc *, uint16_t);
 210 static void     ufoma_free(struct ucom_softc *);
 211 static void     ufoma_cfg_open(struct ucom_softc *);
 212 static void     ufoma_cfg_close(struct ucom_softc *);
 213 static void     ufoma_cfg_set_break(struct ucom_softc *, uint8_t);
 214 static void     ufoma_cfg_get_status(struct ucom_softc *, uint8_t *,
 215                     uint8_t *);
 216 static void     ufoma_cfg_set_dtr(struct ucom_softc *, uint8_t);
 217 static void     ufoma_cfg_set_rts(struct ucom_softc *, uint8_t);
 218 static int      ufoma_pre_param(struct ucom_softc *, struct termios *);
 219 static void     ufoma_cfg_param(struct ucom_softc *, struct termios *);
 220 static int      ufoma_modem_setup(device_t, struct ufoma_softc *,
 221                     struct usb_attach_arg *);
 222 static void     ufoma_start_read(struct ucom_softc *);
 223 static void     ufoma_stop_read(struct ucom_softc *);
 224 static void     ufoma_start_write(struct ucom_softc *);
 225 static void     ufoma_stop_write(struct ucom_softc *);
 226 static void     ufoma_poll(struct ucom_softc *ucom);
 227
 228 /*sysctl stuff*/
 229 static int ufoma_sysctl_support(SYSCTL_HANDLER_ARGS);
 230 static int ufoma_sysctl_current(SYSCTL_HANDLER_ARGS);
 231 static int ufoma_sysctl_open(SYSCTL_HANDLER_ARGS);
 232
 233 static const struct usb_config
 234         ufoma_ctrl_config[UFOMA_CTRL_ENDPT_MAX] = {
 235
 236         [UFOMA_CTRL_ENDPT_INTR] = {
 237                 .type = UE_INTERRUPT,
 238                 .endpoint = UE_ADDR_ANY,
 239                 .direction = UE_DIR_IN,
 240                 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
 241                 .bufsize = sizeof(struct usb_cdc_notification),
 242                 .callback = &ufoma_intr_callback,
 243         },
 244
 245         [UFOMA_CTRL_ENDPT_READ] = {
 246                 .type = UE_CONTROL,
 247                 .endpoint = 0x00,       /* Control pipe */
 248                 .direction = UE_DIR_ANY,
 249                 .bufsize = (sizeof(struct usb_device_request) + UFOMA_CMD_BUF_SIZE),
 250                 .flags = {.short_xfer_ok = 1,},
 251                 .callback = &ufoma_ctrl_read_callback,
 252                 .timeout = 1000,        /* 1 second */
 253         },
 254
 255         [UFOMA_CTRL_ENDPT_WRITE] = {
 256                 .type = UE_CONTROL,
 257                 .endpoint = 0x00,       /* Control pipe */
 258                 .direction = UE_DIR_ANY,
 259                 .bufsize = (sizeof(struct usb_device_request) + 1),
 260                 .callback = &ufoma_ctrl_write_callback,
 261                 .timeout = 1000,        /* 1 second */
 262         },
 263 };
 264
 265 static const struct usb_config
 266         ufoma_bulk_config[UFOMA_BULK_ENDPT_MAX] = {
 267
 268         [UFOMA_BULK_ENDPT_WRITE] = {
 269                 .type = UE_BULK,
 270                 .endpoint = UE_ADDR_ANY,
 271                 .direction = UE_DIR_OUT,
 272                 .bufsize = UFOMA_BULK_BUF_SIZE,
 273                 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
 274                 .callback = &ufoma_bulk_write_callback,
 275         },
 276
 277         [UFOMA_BULK_ENDPT_READ] = {
 278                 .type = UE_BULK,
 279                 .endpoint = UE_ADDR_ANY,
 280                 .direction = UE_DIR_IN,
 281                 .bufsize = UFOMA_BULK_BUF_SIZE,
 282                 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
 283                 .callback = &ufoma_bulk_read_callback,
 284         },
 285 };
 286
 287 static const struct ucom_callback ufoma_callback = {
 288         .ucom_cfg_get_status = &ufoma_cfg_get_status,
 289         .ucom_cfg_set_dtr = &ufoma_cfg_set_dtr,
 290         .ucom_cfg_set_rts = &ufoma_cfg_set_rts,
 291         .ucom_cfg_set_break = &ufoma_cfg_set_break,
 292         .ucom_cfg_param = &ufoma_cfg_param,
 293         .ucom_cfg_open = &ufoma_cfg_open,
 294         .ucom_cfg_close = &ufoma_cfg_close,
 295         .ucom_pre_param = &ufoma_pre_param,
 296         .ucom_start_read = &ufoma_start_read,
 297         .ucom_stop_read = &ufoma_stop_read,
 298         .ucom_start_write = &ufoma_start_write,
 299         .ucom_stop_write = &ufoma_stop_write,
 300         .ucom_poll = &ufoma_poll,
 301         .ucom_free = &ufoma_free,
 302 };
 303
 304 static device_method_t ufoma_methods[] = {
 305         /* Device methods */
 306         DEVMETHOD(device_probe, ufoma_probe),
 307         DEVMETHOD(device_attach, ufoma_attach),
 308         DEVMETHOD(device_detach, ufoma_detach),
 309         DEVMETHOD_END
 310 };
 311
 312 static devclass_t ufoma_devclass;
 313
 314 static driver_t ufoma_driver = {
 315         .name = "ufoma",
 316         .methods = ufoma_methods,
 317         .size = sizeof(struct ufoma_softc),
 318 };
 319
 320 static const STRUCT_USB_HOST_ID ufoma_devs[] = {
 321         {USB_IFACE_CLASS(UICLASS_CDC),
 322          USB_IFACE_SUBCLASS(UISUBCLASS_MCPC),},
 323 };
 324
 325 DRIVER_MODULE(ufoma, uhub, ufoma_driver, ufoma_devclass, NULL, 0);
 326 MODULE_DEPEND(ufoma, ucom, 1, 1, 1);
 327 MODULE_DEPEND(ufoma, usb, 1, 1, 1);
 328 MODULE_VERSION(ufoma, 1);
 329 USB_PNP_HOST_INFO(ufoma_devs);
 330
 331 static int
 332 ufoma_probe(device_t dev)
 333 {
 334         struct usb_attach_arg *uaa = device_get_ivars(dev);
 335         struct usb_interface_descriptor *id;
 336         struct usb_config_descriptor *cd;
 337         usb_mcpc_acm_descriptor *mad;
 338         int error;
 339
 340         if (uaa->usb_mode != USB_MODE_HOST)
 341                 return (ENXIO);
 342
 343         error = usbd_lookup_id_by_uaa(ufoma_devs, sizeof(ufoma_devs), uaa);
 344         if (error)
 345                 return (error);
 346
 347         id = usbd_get_interface_descriptor(uaa->iface);
 348         cd = usbd_get_config_descriptor(uaa->device);
 349
 350         if (id == NULL || cd == NULL)
 351                 return (ENXIO);
 352
 353         mad = ufoma_get_intconf(cd, id, UDESC_VS_INTERFACE, UDESCSUB_MCPC_ACM);
 354         if (mad == NULL)
 355                 return (ENXIO);
 356
 357 #ifndef UFOMA_HANDSFREE
 358         if ((mad->bType == UMCPC_ACM_TYPE_AB5) ||
 359             (mad->bType == UMCPC_ACM_TYPE_AB6))
 360                 return (ENXIO);
 361 #endif
 362         return (BUS_PROBE_GENERIC);
 363 }
 364
 365 static int
 366 ufoma_attach(device_t dev)
 367 {
 368         struct usb_attach_arg *uaa = device_get_ivars(dev);
 369         struct ufoma_softc *sc = device_get_softc(dev);
 370         struct usb_config_descriptor *cd;
 371         struct usb_interface_descriptor *id;
 372         struct sysctl_ctx_list *sctx;
 373         struct sysctl_oid *soid;
 374
 375         usb_mcpc_acm_descriptor *mad;
 376         uint8_t elements;
 377         int32_t error;
 378
 379         sc->sc_udev = uaa->device;
 380         sc->sc_dev = dev;
 381         sc->sc_unit = device_get_unit(dev);
 382
 383         mtx_init(&sc->sc_mtx, "ufoma", NULL, MTX_DEF);
 384         ucom_ref(&sc->sc_super_ucom);
 385         cv_init(&sc->sc_cv, "CWAIT");
 386
 387         device_set_usb_desc(dev);
 388
 389         DPRINTF("\n");
 390
 391         /* setup control transfers */
 392
 393         cd = usbd_get_config_descriptor(uaa->device);
 394         id = usbd_get_interface_descriptor(uaa->iface);
 395         sc->sc_ctrl_iface_no = id->bInterfaceNumber;
 396         sc->sc_ctrl_iface_index = uaa->info.bIfaceIndex;
 397
 398         error = usbd_transfer_setup(uaa->device,
 399             &sc->sc_ctrl_iface_index, sc->sc_ctrl_xfer,
 400             ufoma_ctrl_config, UFOMA_CTRL_ENDPT_MAX, sc, &sc->sc_mtx);
 401
 402         if (error) {
 403                 device_printf(dev, "allocating control USB "
 404                     "transfers failed\n");
 405                 goto detach;
 406         }
 407         mad = ufoma_get_intconf(cd, id, UDESC_VS_INTERFACE, UDESCSUB_MCPC_ACM);
 408         if (mad == NULL) {
 409                 goto detach;
 410         }
 411         if (mad->bFunctionLength < sizeof(*mad)) {
 412                 device_printf(dev, "invalid MAD descriptor\n");
 413                 goto detach;
 414         }
 415         if ((mad->bType == UMCPC_ACM_TYPE_AB5) ||
 416             (mad->bType == UMCPC_ACM_TYPE_AB6)) {
 417                 sc->sc_nobulk = 1;
 418         } else {
 419                 sc->sc_nobulk = 0;
 420                 if (ufoma_modem_setup(dev, sc, uaa)) {
 421                         goto detach;
 422                 }
 423         }
 424
 425         elements = (mad->bFunctionLength - sizeof(*mad) + 1);
 426
 427         /* initialize mode variables */
 428
 429         sc->sc_modetable = malloc(elements + 1, M_USBDEV, M_WAITOK);
 430
 431         if (sc->sc_modetable == NULL) {
 432                 goto detach;
 433         }
 434         sc->sc_modetable[0] = (elements + 1);
 435         memcpy(&sc->sc_modetable[1], mad->bMode, elements);
 436
 437         sc->sc_currentmode = UMCPC_ACM_MODE_UNLINKED;
 438         sc->sc_modetoactivate = mad->bMode[0];
 439
 440         /* clear stall at first run, if any */
 441         mtx_lock(&sc->sc_mtx);
 442         usbd_xfer_set_stall(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_WRITE]);
 443         usbd_xfer_set_stall(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_READ]);
 444         mtx_unlock(&sc->sc_mtx);
 445
 446         error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc,
 447             &ufoma_callback, &sc->sc_mtx);
 448         if (error) {
 449                 DPRINTF("ucom_attach failed\n");
 450                 goto detach;
 451         }
 452         ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
 453
 454         /*Sysctls*/
 455         sctx = device_get_sysctl_ctx(dev);
 456         soid = device_get_sysctl_tree(dev);
 457
 458         SYSCTL_ADD_PROC(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "supportmode",
 459                         CTLFLAG_RD|CTLTYPE_STRING, sc, 0, ufoma_sysctl_support,
 460                         "A", "Supporting port role");
 461
 462         SYSCTL_ADD_PROC(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "currentmode",
 463                         CTLFLAG_RD|CTLTYPE_STRING, sc, 0, ufoma_sysctl_current,
 464                         "A", "Current port role");
 465
 466         SYSCTL_ADD_PROC(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "openmode",
 467                         CTLFLAG_RW|CTLTYPE_STRING, sc, 0, ufoma_sysctl_open,
 468                         "A", "Mode to transit when port is opened");
 469         SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "comunit",
 470                         CTLFLAG_RD, &(sc->sc_super_ucom.sc_unit), 0,
 471                         "Unit number as USB serial");
 472
 473         return (0);                     /* success */
 474
 475 detach:
 476         ufoma_detach(dev);
 477         return (ENXIO);                 /* failure */
 478 }
 479
 480 static int
 481 ufoma_detach(device_t dev)
 482 {
 483         struct ufoma_softc *sc = device_get_softc(dev);
 484
 485         ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom);
 486         usbd_transfer_unsetup(sc->sc_ctrl_xfer, UFOMA_CTRL_ENDPT_MAX);
 487         usbd_transfer_unsetup(sc->sc_bulk_xfer, UFOMA_BULK_ENDPT_MAX);
 488
 489         if (sc->sc_modetable) {
 490                 free(sc->sc_modetable, M_USBDEV);
 491         }
 492         cv_destroy(&sc->sc_cv);
 493
 494         device_claim_softc(dev);
 495
 496         ufoma_free_softc(sc);
 497
 498         return (0);
 499 }
 500
 501 UCOM_UNLOAD_DRAIN(ufoma);
 502
 503 static void
 504 ufoma_free_softc(struct ufoma_softc *sc)
 505 {
 506         if (ucom_unref(&sc->sc_super_ucom)) {
 507                 mtx_destroy(&sc->sc_mtx);
 508                 device_free_softc(sc);
 509         }
 510 }
 511
 512 static void
 513 ufoma_free(struct ucom_softc *ucom)
 514 {
 515         ufoma_free_softc(ucom->sc_parent);
 516 }
 517
 518 static void *
 519 ufoma_get_intconf(struct usb_config_descriptor *cd, struct usb_interface_descriptor *id,
 520     uint8_t type, uint8_t subtype)
 521 {
 522         struct usb_descriptor *desc = (void *)id;
 523
 524         while ((desc = usb_desc_foreach(cd, desc))) {
 525
 526                 if (desc->bDescriptorType == UDESC_INTERFACE) {
 527                         return (NULL);
 528                 }
 529                 if ((desc->bDescriptorType == type) &&
 530                     (desc->bDescriptorSubtype == subtype)) {
 531                         break;
 532                 }
 533         }
 534         return (desc);
 535 }
 536
 537 static void
 538 ufoma_cfg_link_state(struct ufoma_softc *sc)
 539 {
 540         struct usb_device_request req;
 541         int32_t error;
 542
 543         req.bmRequestType = UT_WRITE_VENDOR_INTERFACE;
 544         req.bRequest = UMCPC_SET_LINK;
 545         USETW(req.wValue, UMCPC_CM_MOBILE_ACM);
 546         USETW(req.wIndex, sc->sc_ctrl_iface_no);
 547         USETW(req.wLength, sc->sc_modetable[0]);
 548
 549         ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
 550             &req, sc->sc_modetable, 0, 1000);
 551
 552         error = cv_timedwait(&sc->sc_cv, &sc->sc_mtx, hz);
 553
 554         if (error) {
 555                 DPRINTF("NO response\n");
 556         }
 557 }
 558
 559 static void
 560 ufoma_cfg_activate_state(struct ufoma_softc *sc, uint16_t state)
 561 {
 562         struct usb_device_request req;
 563         int32_t error;
 564
 565         req.bmRequestType = UT_WRITE_VENDOR_INTERFACE;
 566         req.bRequest = UMCPC_ACTIVATE_MODE;
 567         USETW(req.wValue, state);
 568         USETW(req.wIndex, sc->sc_ctrl_iface_no);
 569         USETW(req.wLength, 0);
 570
 571         ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
 572             &req, NULL, 0, 1000);
 573
 574         error = cv_timedwait(&sc->sc_cv, &sc->sc_mtx,
 575             (UFOMA_MAX_TIMEOUT * hz));
 576         if (error) {
 577                 DPRINTF("No response\n");
 578         }
 579 }
 580
 581 static void
 582 ufoma_ctrl_read_callback(struct usb_xfer *xfer, usb_error_t error)
 583 {
 584         struct ufoma_softc *sc = usbd_xfer_softc(xfer);
 585         struct usb_device_request req;
 586         struct usb_page_cache *pc0, *pc1;
 587         int len, aframes, nframes;
 588
 589         usbd_xfer_status(xfer, NULL, NULL, &aframes, &nframes);
 590
 591         switch (USB_GET_STATE(xfer)) {
 592         case USB_ST_TRANSFERRED:
 593 tr_transferred:
 594                 if (aframes != nframes)
 595                         goto tr_setup;
 596                 pc1 = usbd_xfer_get_frame(xfer, 1);
 597                 len = usbd_xfer_frame_len(xfer, 1);
 598                 if (len > 0)
 599                         ucom_put_data(&sc->sc_ucom, pc1, 0, len);
 600                 /* FALLTHROUGH */
 601         case USB_ST_SETUP:
 602 tr_setup:
 603                 if (sc->sc_num_msg) {
 604                         sc->sc_num_msg--;
 605
 606                         req.bmRequestType = UT_READ_CLASS_INTERFACE;
 607                         req.bRequest = UCDC_GET_ENCAPSULATED_RESPONSE;
 608                         USETW(req.wIndex, sc->sc_ctrl_iface_no);
 609                         USETW(req.wValue, 0);
 610                         USETW(req.wLength, UFOMA_CMD_BUF_SIZE);
 611
 612                         pc0 = usbd_xfer_get_frame(xfer, 0);
 613                         usbd_copy_in(pc0, 0, &req, sizeof(req));
 614
 615                         usbd_xfer_set_frame_len(xfer, 0, sizeof(req));
 616                         usbd_xfer_set_frame_len(xfer, 1, UFOMA_CMD_BUF_SIZE);
 617                         usbd_xfer_set_frames(xfer, 2);
 618                         usbd_transfer_submit(xfer);
 619                 }
 620                 return;
 621
 622         default:                        /* Error */
 623                 DPRINTF("error = %s\n",
 624                     usbd_errstr(error));
 625
 626                 if (error == USB_ERR_CANCELLED) {
 627                         return;
 628                 }
 629                 goto tr_transferred;
 630         }
 631 }
 632
 633 static void
 634 ufoma_ctrl_write_callback(struct usb_xfer *xfer, usb_error_t error)
 635 {
 636         struct ufoma_softc *sc = usbd_xfer_softc(xfer);
 637         struct usb_device_request req;
 638         struct usb_page_cache *pc;
 639         uint32_t actlen;
 640
 641         switch (USB_GET_STATE(xfer)) {
 642         case USB_ST_TRANSFERRED:
 643 tr_transferred:
 644         case USB_ST_SETUP:
 645                 pc = usbd_xfer_get_frame(xfer, 1);
 646                 if (ucom_get_data(&sc->sc_ucom, pc, 0, 1, &actlen)) {
 647
 648                         req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
 649                         req.bRequest = UCDC_SEND_ENCAPSULATED_COMMAND;
 650                         USETW(req.wIndex, sc->sc_ctrl_iface_no);
 651                         USETW(req.wValue, 0);
 652                         USETW(req.wLength, 1);
 653
 654                         pc = usbd_xfer_get_frame(xfer, 0);
 655                         usbd_copy_in(pc, 0, &req, sizeof(req));
 656
 657                         usbd_xfer_set_frame_len(xfer, 0, sizeof(req));
 658                         usbd_xfer_set_frame_len(xfer, 1, 1);
 659                         usbd_xfer_set_frames(xfer, 2);
 660
 661                         usbd_transfer_submit(xfer);
 662                 }
 663                 return;
 664
 665         default:                        /* Error */
 666                 DPRINTF("error = %s\n", usbd_errstr(error));
 667
 668                 if (error == USB_ERR_CANCELLED) {
 669                         return;
 670                 }
 671                 goto tr_transferred;
 672         }
 673 }
 674
 675 static void
 676 ufoma_intr_callback(struct usb_xfer *xfer, usb_error_t error)
 677 {
 678         struct ufoma_softc *sc = usbd_xfer_softc(xfer);
 679         struct usb_cdc_notification pkt;
 680         struct usb_page_cache *pc;
 681         uint16_t wLen;
 682         uint16_t temp;
 683         uint8_t mstatus;
 684         int actlen;
 685
 686         usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
 687
 688         switch (USB_GET_STATE(xfer)) {
 689         case USB_ST_TRANSFERRED:
 690                 if (actlen < 8) {
 691                         DPRINTF("too short message\n");
 692                         goto tr_setup;
 693                 }
 694                 if (actlen > (int)sizeof(pkt)) {
 695                         DPRINTF("truncating message\n");
 696                         actlen = sizeof(pkt);
 697                 }
 698                 pc = usbd_xfer_get_frame(xfer, 0);
 699                 usbd_copy_out(pc, 0, &pkt, actlen);
 700
 701                 actlen -= 8;
 702
 703                 wLen = UGETW(pkt.wLength);
 704                 if (actlen > wLen) {
 705                         actlen = wLen;
 706                 }
 707                 if ((pkt.bmRequestType == UT_READ_VENDOR_INTERFACE) &&
 708                     (pkt.bNotification == UMCPC_REQUEST_ACKNOWLEDGE)) {
 709                         temp = UGETW(pkt.wValue);
 710                         sc->sc_currentmode = (temp >> 8);
 711                         if (!(temp & 0xff)) {
 712                                 DPRINTF("Mode change failed!\n");
 713                         }
 714                         cv_signal(&sc->sc_cv);
 715                 }
 716                 if (pkt.bmRequestType != UCDC_NOTIFICATION) {
 717                         goto tr_setup;
 718                 }
 719                 switch (pkt.bNotification) {
 720                 case UCDC_N_RESPONSE_AVAILABLE:
 721                         if (!(sc->sc_nobulk)) {
 722                                 DPRINTF("Wrong serial state!\n");
 723                                 break;
 724                         }
 725                         if (sc->sc_num_msg != 0xFF) {
 726                                 sc->sc_num_msg++;
 727                         }
 728                         usbd_transfer_start(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_READ]);
 729                         break;
 730
 731                 case UCDC_N_SERIAL_STATE:
 732                         if (sc->sc_nobulk) {
 733                                 DPRINTF("Wrong serial state!\n");
 734                                 break;
 735                         }
 736                         /*
 737                          * Set the serial state in ucom driver based on
 738                          * the bits from the notify message
 739                          */
 740                         if (actlen < 2) {
 741                                 DPRINTF("invalid notification "
 742                                     "length, %d bytes!\n", actlen);
 743                                 break;
 744                         }
 745                         DPRINTF("notify bytes = 0x%02x, 0x%02x\n",
 746                             pkt.data[0], pkt.data[1]);
 747
 748                         /* currently, lsr is always zero. */
 749                         sc->sc_lsr = 0;
 750                         sc->sc_msr = 0;
 751
 752                         mstatus = pkt.data[0];
 753
 754                         if (mstatus & UCDC_N_SERIAL_RI) {
 755                                 sc->sc_msr |= SER_RI;
 756                         }
 757                         if (mstatus & UCDC_N_SERIAL_DSR) {
 758                                 sc->sc_msr |= SER_DSR;
 759                         }
 760                         if (mstatus & UCDC_N_SERIAL_DCD) {
 761                                 sc->sc_msr |= SER_DCD;
 762                         }
 763                         ucom_status_change(&sc->sc_ucom);
 764                         break;
 765
 766                 default:
 767                         break;
 768                 }
 769
 770         case USB_ST_SETUP:
 771 tr_setup:
 772                 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
 773                 usbd_transfer_submit(xfer);
 774                 return;
 775
 776         default:                        /* Error */
 777                 if (error != USB_ERR_CANCELLED) {
 778                         /* try to clear stall first */
 779                         usbd_xfer_set_stall(xfer);
 780                         goto tr_setup;
 781                 }
 782                 return;
 783         }
 784 }
 785
 786 static void
 787 ufoma_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
 788 {
 789         struct ufoma_softc *sc = usbd_xfer_softc(xfer);
 790         struct usb_page_cache *pc;
 791         uint32_t actlen;
 792
 793         switch (USB_GET_STATE(xfer)) {
 794         case USB_ST_SETUP:
 795         case USB_ST_TRANSFERRED:
 796 tr_setup:
 797                 pc = usbd_xfer_get_frame(xfer, 0);
 798                 if (ucom_get_data(&sc->sc_ucom, pc, 0,
 799                     UFOMA_BULK_BUF_SIZE, &actlen)) {
 800                         usbd_xfer_set_frame_len(xfer, 0, actlen);
 801                         usbd_transfer_submit(xfer);
 802                 }
 803                 return;
 804
 805         default:                        /* Error */
 806                 if (error != USB_ERR_CANCELLED) {
 807                         /* try to clear stall first */
 808                         usbd_xfer_set_stall(xfer);
 809                         goto tr_setup;
 810                 }
 811                 return;
 812         }
 813 }
 814
 815 static void
 816 ufoma_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
 817 {
 818         struct ufoma_softc *sc = usbd_xfer_softc(xfer);
 819         struct usb_page_cache *pc;
 820         int actlen;
 821
 822         usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
 823
 824         switch (USB_GET_STATE(xfer)) {
 825         case USB_ST_TRANSFERRED:
 826                 pc = usbd_xfer_get_frame(xfer, 0);
 827                 ucom_put_data(&sc->sc_ucom, pc, 0, actlen);
 828
 829         case USB_ST_SETUP:
 830 tr_setup:
 831                 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
 832                 usbd_transfer_submit(xfer);
 833                 return;
 834
 835         default:                        /* Error */
 836                 if (error != USB_ERR_CANCELLED) {
 837                         /* try to clear stall first */
 838                         usbd_xfer_set_stall(xfer);
 839                         goto tr_setup;
 840                 }
 841                 return;
 842         }
 843 }
 844
 845 static void
 846 ufoma_cfg_open(struct ucom_softc *ucom)
 847 {
 848         struct ufoma_softc *sc = ucom->sc_parent;
 849
 850         /* empty input queue */
 851
 852         if (sc->sc_num_msg != 0xFF) {
 853                 sc->sc_num_msg++;
 854         }
 855         if (sc->sc_currentmode == UMCPC_ACM_MODE_UNLINKED) {
 856                 ufoma_cfg_link_state(sc);
 857         }
 858         if (sc->sc_currentmode == UMCPC_ACM_MODE_DEACTIVATED) {
 859                 ufoma_cfg_activate_state(sc, sc->sc_modetoactivate);
 860         }
 861 }
 862
 863 static void
 864 ufoma_cfg_close(struct ucom_softc *ucom)
 865 {
 866         struct ufoma_softc *sc = ucom->sc_parent;
 867
 868         ufoma_cfg_activate_state(sc, UMCPC_ACM_MODE_DEACTIVATED);
 869 }
 870
 871 static void
 872 ufoma_cfg_set_break(struct ucom_softc *ucom, uint8_t onoff)
 873 {
 874         struct ufoma_softc *sc = ucom->sc_parent;
 875         struct usb_device_request req;
 876         uint16_t wValue;
 877
 878         if (sc->sc_nobulk ||
 879             (sc->sc_currentmode == UMCPC_ACM_MODE_OBEX)) {
 880                 return;
 881         }
 882         if (!(sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK)) {
 883                 return;
 884         }
 885         wValue = onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF;
 886
 887         req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
 888         req.bRequest = UCDC_SEND_BREAK;
 889         USETW(req.wValue, wValue);
 890         req.wIndex[0] = sc->sc_ctrl_iface_no;
 891         req.wIndex[1] = 0;
 892         USETW(req.wLength, 0);
 893
 894         ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
 895             &req, NULL, 0, 1000);
 896 }
 897
 898 static void
 899 ufoma_cfg_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr)
 900 {
 901         struct ufoma_softc *sc = ucom->sc_parent;
 902
 903         /* XXX Note: sc_lsr is always zero */
 904         *lsr = sc->sc_lsr;
 905         *msr = sc->sc_msr;
 906 }
 907
 908 static void
 909 ufoma_cfg_set_line_state(struct ufoma_softc *sc)
 910 {
 911         struct usb_device_request req;
 912
 913         /* Don't send line state emulation request for OBEX port */
 914         if (sc->sc_currentmode == UMCPC_ACM_MODE_OBEX) {
 915                 return;
 916         }
 917         req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
 918         req.bRequest = UCDC_SET_CONTROL_LINE_STATE;
 919         USETW(req.wValue, sc->sc_line);
 920         req.wIndex[0] = sc->sc_ctrl_iface_no;
 921         req.wIndex[1] = 0;
 922         USETW(req.wLength, 0);
 923
 924         ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
 925             &req, NULL, 0, 1000);
 926 }
 927
 928 static void
 929 ufoma_cfg_set_dtr(struct ucom_softc *ucom, uint8_t onoff)
 930 {
 931         struct ufoma_softc *sc = ucom->sc_parent;
 932
 933         if (sc->sc_nobulk) {
 934                 return;
 935         }
 936         if (onoff)
 937                 sc->sc_line |= UCDC_LINE_DTR;
 938         else
 939                 sc->sc_line &= ~UCDC_LINE_DTR;
 940
 941         ufoma_cfg_set_line_state(sc);
 942 }
 943
 944 static void
 945 ufoma_cfg_set_rts(struct ucom_softc *ucom, uint8_t onoff)
 946 {
 947         struct ufoma_softc *sc = ucom->sc_parent;
 948
 949         if (sc->sc_nobulk) {
 950                 return;
 951         }
 952         if (onoff)
 953                 sc->sc_line |= UCDC_LINE_RTS;
 954         else
 955                 sc->sc_line &= ~UCDC_LINE_RTS;
 956
 957         ufoma_cfg_set_line_state(sc);
 958 }
 959
 960 static int
 961 ufoma_pre_param(struct ucom_softc *ucom, struct termios *t)
 962 {
 963         return (0);                     /* we accept anything */
 964 }
 965
 966 static void
 967 ufoma_cfg_param(struct ucom_softc *ucom, struct termios *t)
 968 {
 969         struct ufoma_softc *sc = ucom->sc_parent;
 970         struct usb_device_request req;
 971         struct usb_cdc_line_state ls;
 972
 973         if (sc->sc_nobulk ||
 974             (sc->sc_currentmode == UMCPC_ACM_MODE_OBEX)) {
 975                 return;
 976         }
 977         DPRINTF("\n");
 978
 979         memset(&ls, 0, sizeof(ls));
 980
 981         USETDW(ls.dwDTERate, t->c_ospeed);
 982
 983         if (t->c_cflag & CSTOPB) {
 984                 ls.bCharFormat = UCDC_STOP_BIT_2;
 985         } else {
 986                 ls.bCharFormat = UCDC_STOP_BIT_1;
 987         }
 988
 989         if (t->c_cflag & PARENB) {
 990                 if (t->c_cflag & PARODD) {
 991                         ls.bParityType = UCDC_PARITY_ODD;
 992                 } else {
 993                         ls.bParityType = UCDC_PARITY_EVEN;
 994                 }
 995         } else {
 996                 ls.bParityType = UCDC_PARITY_NONE;
 997         }
 998
 999         switch (t->c_cflag & CSIZE) {
1000         case CS5:
1001                 ls.bDataBits = 5;
1002                 break;
1003         case CS6:
1004                 ls.bDataBits = 6;
1005                 break;
1006         case CS7:
1007                 ls.bDataBits = 7;
1008                 break;
1009         case CS8:
1010                 ls.bDataBits = 8;
1011                 break;
1012         }
1013
1014         req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
1015         req.bRequest = UCDC_SET_LINE_CODING;
1016         USETW(req.wValue, 0);
1017         req.wIndex[0] = sc->sc_ctrl_iface_no;
1018         req.wIndex[1] = 0;
1019         USETW(req.wLength, UCDC_LINE_STATE_LENGTH);
1020
1021         ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
1022             &req, &ls, 0, 1000);
1023 }
1024
1025 static int
1026 ufoma_modem_setup(device_t dev, struct ufoma_softc *sc,
1027     struct usb_attach_arg *uaa)
1028 {
1029         struct usb_config_descriptor *cd;
1030         struct usb_cdc_acm_descriptor *acm;
1031         struct usb_cdc_cm_descriptor *cmd;
1032         struct usb_interface_descriptor *id;
1033         struct usb_interface *iface;
1034         uint8_t i;
1035         int32_t error;
1036
1037         cd = usbd_get_config_descriptor(uaa->device);
1038         id = usbd_get_interface_descriptor(uaa->iface);
1039
1040         cmd = ufoma_get_intconf(cd, id, UDESC_CS_INTERFACE, UDESCSUB_CDC_CM);
1041
1042         if ((cmd == NULL) ||
1043             (cmd->bLength < sizeof(*cmd))) {
1044                 return (EINVAL);
1045         }
1046         sc->sc_cm_cap = cmd->bmCapabilities;
1047         sc->sc_data_iface_no = cmd->bDataInterface;
1048
1049         acm = ufoma_get_intconf(cd, id, UDESC_CS_INTERFACE, UDESCSUB_CDC_ACM);
1050
1051         if ((acm == NULL) ||
1052             (acm->bLength < sizeof(*acm))) {
1053                 return (EINVAL);
1054         }
1055         sc->sc_acm_cap = acm->bmCapabilities;
1056
1057         device_printf(dev, "data interface %d, has %sCM over data, "
1058             "has %sbreak\n",
1059             sc->sc_data_iface_no,
1060             sc->sc_cm_cap & USB_CDC_CM_OVER_DATA ? "" : "no ",
1061             sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK ? "" : "no ");
1062
1063         /* get the data interface too */
1064
1065         for (i = 0;; i++) {
1066
1067                 iface = usbd_get_iface(uaa->device, i);
1068
1069                 if (iface) {
1070
1071                         id = usbd_get_interface_descriptor(iface);
1072
1073                         if (id && (id->bInterfaceNumber == sc->sc_data_iface_no)) {
1074                                 sc->sc_data_iface_index = i;
1075                                 usbd_set_parent_iface(uaa->device, i, uaa->info.bIfaceIndex);
1076                                 break;
1077                         }
1078                 } else {
1079                         device_printf(dev, "no data interface\n");
1080                         return (EINVAL);
1081                 }
1082         }
1083
1084         error = usbd_transfer_setup(uaa->device,
1085             &sc->sc_data_iface_index, sc->sc_bulk_xfer,
1086             ufoma_bulk_config, UFOMA_BULK_ENDPT_MAX, sc, &sc->sc_mtx);
1087
1088         if (error) {
1089                 device_printf(dev, "allocating BULK USB "
1090                     "transfers failed\n");
1091                 return (EINVAL);
1092         }
1093         return (0);
1094 }
1095
1096 static void
1097 ufoma_start_read(struct ucom_softc *ucom)
1098 {
1099         struct ufoma_softc *sc = ucom->sc_parent;
1100
1101         /* start interrupt transfer */
1102         usbd_transfer_start(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_INTR]);
1103
1104         /* start data transfer */
1105         if (sc->sc_nobulk) {
1106                 usbd_transfer_start(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_READ]);
1107         } else {
1108                 usbd_transfer_start(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_READ]);
1109         }
1110 }
1111
1112 static void
1113 ufoma_stop_read(struct ucom_softc *ucom)
1114 {
1115         struct ufoma_softc *sc = ucom->sc_parent;
1116
1117         /* stop interrupt transfer */
1118         usbd_transfer_stop(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_INTR]);
1119
1120         /* stop data transfer */
1121         if (sc->sc_nobulk) {
1122                 usbd_transfer_stop(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_READ]);
1123         } else {
1124                 usbd_transfer_stop(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_READ]);
1125         }
1126 }
1127
1128 static void
1129 ufoma_start_write(struct ucom_softc *ucom)
1130 {
1131         struct ufoma_softc *sc = ucom->sc_parent;
1132
1133         if (sc->sc_nobulk) {
1134                 usbd_transfer_start(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_WRITE]);
1135         } else {
1136                 usbd_transfer_start(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_WRITE]);
1137         }
1138 }
1139
1140 static void
1141 ufoma_stop_write(struct ucom_softc *ucom)
1142 {
1143         struct ufoma_softc *sc = ucom->sc_parent;
1144
1145         if (sc->sc_nobulk) {
1146                 usbd_transfer_stop(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_WRITE]);
1147         } else {
1148                 usbd_transfer_stop(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_WRITE]);
1149         }
1150 }
1151
1152 static struct umcpc_modetostr_tab{
1153         int mode;
1154         char *str;
1155 }umcpc_modetostr_tab[]={
1156         {UMCPC_ACM_MODE_DEACTIVATED, "deactivated"},
1157         {UMCPC_ACM_MODE_MODEM, "modem"},
1158         {UMCPC_ACM_MODE_ATCOMMAND, "handsfree"},
1159         {UMCPC_ACM_MODE_OBEX, "obex"},
1160         {UMCPC_ACM_MODE_VENDOR1, "vendor1"},
1161         {UMCPC_ACM_MODE_VENDOR2, "vendor2"},
1162         {UMCPC_ACM_MODE_UNLINKED, "unlinked"},
1163         {0, NULL}
1164 };
1165
1166 static char *ufoma_mode_to_str(int mode)
1167 {
1168         int i;
1169         for(i = 0 ;umcpc_modetostr_tab[i].str != NULL; i++){
1170                 if(umcpc_modetostr_tab[i].mode == mode){
1171                         return umcpc_modetostr_tab[i].str;
1172                 }
1173         }
1174         return NULL;
1175 }
1176
1177 static int ufoma_str_to_mode(char *str)
1178 {
1179         int i;
1180         for(i = 0 ;umcpc_modetostr_tab[i].str != NULL; i++){
1181                 if(strcmp(str, umcpc_modetostr_tab[i].str)==0){
1182                         return umcpc_modetostr_tab[i].mode;
1183                 }
1184         }
1185         return -1;
1186 }
1187
1188 static int ufoma_sysctl_support(SYSCTL_HANDLER_ARGS)
1189 {
1190         struct ufoma_softc *sc = (struct ufoma_softc *)oidp->oid_arg1;
1191         struct sbuf sb;
1192         int i;
1193         char *mode;
1194
1195         sbuf_new(&sb, NULL, 1, SBUF_AUTOEXTEND);
1196         for(i = 1; i < sc->sc_modetable[0]; i++){
1197                 mode = ufoma_mode_to_str(sc->sc_modetable[i]);
1198                 if(mode !=NULL){
1199                         sbuf_cat(&sb, mode);
1200                 }else{
1201                         sbuf_printf(&sb, "(%02x)", sc->sc_modetable[i]);
1202                 }
1203                 if(i < (sc->sc_modetable[0]-1))
1204                         sbuf_cat(&sb, ",");
1205         }
1206         sbuf_trim(&sb);
1207         sbuf_finish(&sb);
1208         sysctl_handle_string(oidp, sbuf_data(&sb), sbuf_len(&sb), req);
1209         sbuf_delete(&sb);
1210
1211         return 0;
1212 }
1213 static int ufoma_sysctl_current(SYSCTL_HANDLER_ARGS)
1214 {
1215         struct ufoma_softc *sc = (struct ufoma_softc *)oidp->oid_arg1;
1216         char *mode;
1217         char subbuf[]="(XXX)";
1218         mode = ufoma_mode_to_str(sc->sc_currentmode);
1219         if(!mode){
1220                 mode = subbuf;
1221                 snprintf(subbuf, sizeof(subbuf), "(%02x)", sc->sc_currentmode);
1222         }
1223         sysctl_handle_string(oidp, mode, strlen(mode), req);
1224
1225         return 0;
1226
1227 }
1228 static int ufoma_sysctl_open(SYSCTL_HANDLER_ARGS)
1229 {
1230         struct ufoma_softc *sc = (struct ufoma_softc *)oidp->oid_arg1;
1231         char *mode;
1232         char subbuf[40];
1233         int newmode;
1234         int error;
1235         int i;
1236
1237         mode = ufoma_mode_to_str(sc->sc_modetoactivate);
1238         if(mode){
1239                 strncpy(subbuf, mode, sizeof(subbuf));
1240         }else{
1241                 snprintf(subbuf, sizeof(subbuf), "(%02x)", sc->sc_modetoactivate);
1242         }
1243         error = sysctl_handle_string(oidp, subbuf, sizeof(subbuf), req);
1244         if(error != 0 || req->newptr == NULL){
1245                 return error;
1246         }
1247
1248         if((newmode = ufoma_str_to_mode(subbuf)) == -1){
1249                 return EINVAL;
1250         }
1251
1252         for(i = 1 ; i < sc->sc_modetable[0] ; i++){
1253                 if(sc->sc_modetable[i] == newmode){
1254                         sc->sc_modetoactivate = newmode;
1255                         return 0;
1256                 }
1257         }
1258
1259         return EINVAL;
1260 }
1261
1262 static void
1263 ufoma_poll(struct ucom_softc *ucom)
1264 {
1265         struct ufoma_softc *sc = ucom->sc_parent;
1266         usbd_transfer_poll(sc->sc_ctrl_xfer, UFOMA_CTRL_ENDPT_MAX);
1267         usbd_transfer_poll(sc->sc_bulk_xfer, UFOMA_BULK_ENDPT_MAX);
1268 }