sys/dev/usb/serial/uvisor.c

   1 /*      $NetBSD: uvisor.c,v 1.9 2001/01/23 14:04:14 augustss Exp $      */
   2 /*      $FreeBSD$ */
   3
   4 /* Also already merged from NetBSD:
   5  *      $NetBSD: uvisor.c,v 1.12 2001/11/13 06:24:57 lukem Exp $
   6  *      $NetBSD: uvisor.c,v 1.13 2002/02/11 15:11:49 augustss Exp $
   7  *      $NetBSD: uvisor.c,v 1.14 2002/02/27 23:00:03 augustss Exp $
   8  *      $NetBSD: uvisor.c,v 1.15 2002/06/16 15:01:31 augustss Exp $
   9  *      $NetBSD: uvisor.c,v 1.16 2002/07/11 21:14:36 augustss Exp $
  10  *      $NetBSD: uvisor.c,v 1.17 2002/08/13 11:38:15 augustss Exp $
  11  *      $NetBSD: uvisor.c,v 1.18 2003/02/05 00:50:14 augustss Exp $
  12  *      $NetBSD: uvisor.c,v 1.19 2003/02/07 18:12:37 augustss Exp $
  13  *      $NetBSD: uvisor.c,v 1.20 2003/04/11 01:30:10 simonb Exp $
  14  */
  15
  16 /*-
  17  * Copyright (c) 2000 The NetBSD Foundation, Inc.
  18  * All rights reserved.
  19  *
  20  * This code is derived from software contributed to The NetBSD Foundation
  21  * by Lennart Augustsson (lennart@augustsson.net) at
  22  * Carlstedt Research & Technology.
  23  *
  24  * Redistribution and use in source and binary forms, with or without
  25  * modification, are permitted provided that the following conditions
  26  * are met:
  27  * 1. Redistributions of source code must retain the above copyright
  28  *    notice, this list of conditions and the following disclaimer.
  29  * 2. Redistributions in binary form must reproduce the above copyright
  30  *    notice, this list of conditions and the following disclaimer in the
  31  *    documentation and/or other materials provided with the distribution.
  32  *
  33  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  34  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  35  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  36  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  37  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  38  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  39  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  40  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  41  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  42  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  43  * POSSIBILITY OF SUCH DAMAGE.
  44  */
  45
  46 /*
  47  * Handspring Visor (Palmpilot compatible PDA) driver
  48  */
  49
  50 #include <sys/stdint.h>
  51 #include <sys/stddef.h>
  52 #include <sys/param.h>
  53 #include <sys/queue.h>
  54 #include <sys/types.h>
  55 #include <sys/systm.h>
  56 #include <sys/kernel.h>
  57 #include <sys/bus.h>
  58 #include <sys/module.h>
  59 #include <sys/lock.h>
  60 #include <sys/mutex.h>
  61 #include <sys/condvar.h>
  62 #include <sys/sysctl.h>
  63 #include <sys/sx.h>
  64 #include <sys/unistd.h>
  65 #include <sys/callout.h>
  66 #include <sys/malloc.h>
  67 #include <sys/priv.h>
  68
  69 #include <dev/usb/usb.h>
  70 #include <dev/usb/usbdi.h>
  71 #include <dev/usb/usbdi_util.h>
  72 #include "usbdevs.h"
  73
  74 #define USB_DEBUG_VAR uvisor_debug
  75 #include <dev/usb/usb_debug.h>
  76 #include <dev/usb/usb_process.h>
  77
  78 #include <dev/usb/serial/usb_serial.h>
  79
  80 #ifdef USB_DEBUG
  81 static int uvisor_debug = 0;
  82
  83 static SYSCTL_NODE(_hw_usb, OID_AUTO, uvisor, CTLFLAG_RW, 0, "USB uvisor");
  84 SYSCTL_INT(_hw_usb_uvisor, OID_AUTO, debug, CTLFLAG_RW,
  85     &uvisor_debug, 0, "Debug level");
  86 #endif
  87
  88 #define UVISOR_CONFIG_INDEX     0
  89 #define UVISOR_IFACE_INDEX      0
  90
  91 /*
  92  * The following buffer sizes are hardcoded due to the way the Palm
  93  * firmware works. It looks like the device is not short terminating
  94  * the data transferred.
  95  */
  96 #define UVISORIBUFSIZE         0        /* Use wMaxPacketSize */
  97 #define UVISOROBUFSIZE         32       /* bytes */
  98 #define UVISOROFRAMES          32       /* units */
  99
 100 /* From the Linux driver */
 101 /*
 102  * UVISOR_REQUEST_BYTES_AVAILABLE asks the visor for the number of bytes that
 103  * are available to be transfered to the host for the specified endpoint.
 104  * Currently this is not used, and always returns 0x0001
 105  */
 106 #define UVISOR_REQUEST_BYTES_AVAILABLE          0x01
 107
 108 /*
 109  * UVISOR_CLOSE_NOTIFICATION is set to the device to notify it that the host
 110  * is now closing the pipe. An empty packet is sent in response.
 111  */
 112 #define UVISOR_CLOSE_NOTIFICATION               0x02
 113
 114 /*
 115  * UVISOR_GET_CONNECTION_INFORMATION is sent by the host during enumeration to
 116  * get the endpoints used by the connection.
 117  */
 118 #define UVISOR_GET_CONNECTION_INFORMATION       0x03
 119
 120 /*
 121  * UVISOR_GET_CONNECTION_INFORMATION returns data in the following format
 122  */
 123 #define UVISOR_MAX_CONN 8
 124 struct uvisor_connection_info {
 125         uWord   num_ports;
 126         struct {
 127                 uByte   port_function_id;
 128                 uByte   port;
 129         } __packed connections[UVISOR_MAX_CONN];
 130 } __packed;
 131
 132 #define UVISOR_CONNECTION_INFO_SIZE 18
 133
 134 /* struct uvisor_connection_info.connection[x].port defines: */
 135 #define UVISOR_ENDPOINT_1               0x01
 136 #define UVISOR_ENDPOINT_2               0x02
 137
 138 /* struct uvisor_connection_info.connection[x].port_function_id defines: */
 139 #define UVISOR_FUNCTION_GENERIC         0x00
 140 #define UVISOR_FUNCTION_DEBUGGER        0x01
 141 #define UVISOR_FUNCTION_HOTSYNC         0x02
 142 #define UVISOR_FUNCTION_CONSOLE         0x03
 143 #define UVISOR_FUNCTION_REMOTE_FILE_SYS 0x04
 144
 145 /*
 146  * Unknown PalmOS stuff.
 147  */
 148 #define UVISOR_GET_PALM_INFORMATION             0x04
 149 #define UVISOR_GET_PALM_INFORMATION_LEN         0x44
 150
 151 struct uvisor_palm_connection_info {
 152         uByte   num_ports;
 153         uByte   endpoint_numbers_different;
 154         uWord   reserved1;
 155         struct {
 156                 uDWord  port_function_id;
 157                 uByte   port;
 158                 uByte   end_point_info;
 159                 uWord   reserved;
 160         } __packed connections[UVISOR_MAX_CONN];
 161 } __packed;
 162
 163 enum {
 164         UVISOR_BULK_DT_WR,
 165         UVISOR_BULK_DT_RD,
 166         UVISOR_N_TRANSFER,
 167 };
 168
 169 struct uvisor_softc {
 170         struct ucom_super_softc sc_super_ucom;
 171         struct ucom_softc sc_ucom;
 172
 173         struct usb_xfer *sc_xfer[UVISOR_N_TRANSFER];
 174         struct usb_device *sc_udev;
 175         struct mtx sc_mtx;
 176
 177         uint16_t sc_flag;
 178 #define UVISOR_FLAG_PALM4       0x0001
 179 #define UVISOR_FLAG_VISOR       0x0002
 180 #define UVISOR_FLAG_PALM35      0x0004
 181 #define UVISOR_FLAG_SEND_NOTIFY 0x0008
 182
 183         uint8_t sc_iface_no;
 184         uint8_t sc_iface_index;
 185 };
 186
 187 /* prototypes */
 188
 189 static device_probe_t uvisor_probe;
 190 static device_attach_t uvisor_attach;
 191 static device_detach_t uvisor_detach;
 192 static void uvisor_free_softc(struct uvisor_softc *);
 193
 194 static usb_callback_t uvisor_write_callback;
 195 static usb_callback_t uvisor_read_callback;
 196
 197 static usb_error_t uvisor_init(struct uvisor_softc *, struct usb_device *,
 198                     struct usb_config *);
 199 static void     uvisor_free(struct ucom_softc *);
 200 static void     uvisor_cfg_open(struct ucom_softc *);
 201 static void     uvisor_cfg_close(struct ucom_softc *);
 202 static void     uvisor_start_read(struct ucom_softc *);
 203 static void     uvisor_stop_read(struct ucom_softc *);
 204 static void     uvisor_start_write(struct ucom_softc *);
 205 static void     uvisor_stop_write(struct ucom_softc *);
 206
 207 static const struct usb_config uvisor_config[UVISOR_N_TRANSFER] = {
 208
 209         [UVISOR_BULK_DT_WR] = {
 210                 .type = UE_BULK,
 211                 .endpoint = UE_ADDR_ANY,
 212                 .direction = UE_DIR_OUT,
 213                 .bufsize = UVISOROBUFSIZE * UVISOROFRAMES,
 214                 .frames = UVISOROFRAMES,
 215                 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
 216                 .callback = &uvisor_write_callback,
 217         },
 218
 219         [UVISOR_BULK_DT_RD] = {
 220                 .type = UE_BULK,
 221                 .endpoint = UE_ADDR_ANY,
 222                 .direction = UE_DIR_IN,
 223                 .bufsize = UVISORIBUFSIZE,
 224                 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
 225                 .callback = &uvisor_read_callback,
 226         },
 227 };
 228
 229 static const struct ucom_callback uvisor_callback = {
 230         .ucom_cfg_open = &uvisor_cfg_open,
 231         .ucom_cfg_close = &uvisor_cfg_close,
 232         .ucom_start_read = &uvisor_start_read,
 233         .ucom_stop_read = &uvisor_stop_read,
 234         .ucom_start_write = &uvisor_start_write,
 235         .ucom_stop_write = &uvisor_stop_write,
 236         .ucom_free = &uvisor_free,
 237 };
 238
 239 static device_method_t uvisor_methods[] = {
 240         DEVMETHOD(device_probe, uvisor_probe),
 241         DEVMETHOD(device_attach, uvisor_attach),
 242         DEVMETHOD(device_detach, uvisor_detach),
 243         DEVMETHOD_END
 244 };
 245
 246 static devclass_t uvisor_devclass;
 247
 248 static driver_t uvisor_driver = {
 249         .name = "uvisor",
 250         .methods = uvisor_methods,
 251         .size = sizeof(struct uvisor_softc),
 252 };
 253
 254 DRIVER_MODULE(uvisor, uhub, uvisor_driver, uvisor_devclass, NULL, 0);
 255 MODULE_DEPEND(uvisor, ucom, 1, 1, 1);
 256 MODULE_DEPEND(uvisor, usb, 1, 1, 1);
 257 MODULE_VERSION(uvisor, 1);
 258
 259 static const STRUCT_USB_HOST_ID uvisor_devs[] = {
 260 #define UVISOR_DEV(v,p,i) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, i) }
 261         UVISOR_DEV(ACEECA, MEZ1000, UVISOR_FLAG_PALM4),
 262         UVISOR_DEV(ALPHASMART, DANA_SYNC, UVISOR_FLAG_PALM4),
 263         UVISOR_DEV(GARMIN, IQUE_3600, UVISOR_FLAG_PALM4),
 264         UVISOR_DEV(FOSSIL, WRISTPDA, UVISOR_FLAG_PALM4),
 265         UVISOR_DEV(HANDSPRING, VISOR, UVISOR_FLAG_VISOR),
 266         UVISOR_DEV(HANDSPRING, TREO, UVISOR_FLAG_PALM4),
 267         UVISOR_DEV(HANDSPRING, TREO600, UVISOR_FLAG_PALM4),
 268         UVISOR_DEV(PALM, M500, UVISOR_FLAG_PALM4),
 269         UVISOR_DEV(PALM, M505, UVISOR_FLAG_PALM4),
 270         UVISOR_DEV(PALM, M515, UVISOR_FLAG_PALM4),
 271         UVISOR_DEV(PALM, I705, UVISOR_FLAG_PALM4),
 272         UVISOR_DEV(PALM, M125, UVISOR_FLAG_PALM4),
 273         UVISOR_DEV(PALM, M130, UVISOR_FLAG_PALM4),
 274         UVISOR_DEV(PALM, TUNGSTEN_Z, UVISOR_FLAG_PALM4),
 275         UVISOR_DEV(PALM, TUNGSTEN_T, UVISOR_FLAG_PALM4),
 276         UVISOR_DEV(PALM, ZIRE, UVISOR_FLAG_PALM4),
 277         UVISOR_DEV(PALM, ZIRE31, UVISOR_FLAG_PALM4),
 278         UVISOR_DEV(SAMSUNG, I500, UVISOR_FLAG_PALM4),
 279         UVISOR_DEV(SONY, CLIE_40, 0),
 280         UVISOR_DEV(SONY, CLIE_41, 0),
 281         UVISOR_DEV(SONY, CLIE_S360, UVISOR_FLAG_PALM4),
 282         UVISOR_DEV(SONY, CLIE_NX60, UVISOR_FLAG_PALM4),
 283         UVISOR_DEV(SONY, CLIE_35, UVISOR_FLAG_PALM35),
 284 /*  UVISOR_DEV(SONY, CLIE_25, UVISOR_FLAG_PALM4 ), */
 285         UVISOR_DEV(SONY, CLIE_TJ37, UVISOR_FLAG_PALM4),
 286 /*  UVISOR_DEV(SONY, CLIE_TH55, UVISOR_FLAG_PALM4 ), See PR 80935 */
 287         UVISOR_DEV(TAPWAVE, ZODIAC, UVISOR_FLAG_PALM4),
 288 #undef UVISOR_DEV
 289 };
 290
 291 static int
 292 uvisor_probe(device_t dev)
 293 {
 294         struct usb_attach_arg *uaa = device_get_ivars(dev);
 295
 296         if (uaa->usb_mode != USB_MODE_HOST) {
 297                 return (ENXIO);
 298         }
 299         if (uaa->info.bConfigIndex != UVISOR_CONFIG_INDEX) {
 300                 return (ENXIO);
 301         }
 302         if (uaa->info.bIfaceIndex != UVISOR_IFACE_INDEX) {
 303                 return (ENXIO);
 304         }
 305         return (usbd_lookup_id_by_uaa(uvisor_devs, sizeof(uvisor_devs), uaa));
 306 }
 307
 308 static int
 309 uvisor_attach(device_t dev)
 310 {
 311         struct usb_attach_arg *uaa = device_get_ivars(dev);
 312         struct uvisor_softc *sc = device_get_softc(dev);
 313         struct usb_config uvisor_config_copy[UVISOR_N_TRANSFER];
 314         int error;
 315
 316         DPRINTF("sc=%p\n", sc);
 317         memcpy(uvisor_config_copy, uvisor_config,
 318             sizeof(uvisor_config_copy));
 319
 320         device_set_usb_desc(dev);
 321
 322         mtx_init(&sc->sc_mtx, "uvisor", NULL, MTX_DEF);
 323         ucom_ref(&sc->sc_super_ucom);
 324
 325         sc->sc_udev = uaa->device;
 326
 327         /* configure the device */
 328
 329         sc->sc_flag = USB_GET_DRIVER_INFO(uaa);
 330         sc->sc_iface_no = uaa->info.bIfaceNum;
 331         sc->sc_iface_index = UVISOR_IFACE_INDEX;
 332
 333         error = uvisor_init(sc, uaa->device, uvisor_config_copy);
 334
 335         if (error) {
 336                 DPRINTF("init failed, error=%s\n",
 337                     usbd_errstr(error));
 338                 goto detach;
 339         }
 340         error = usbd_transfer_setup(uaa->device, &sc->sc_iface_index,
 341             sc->sc_xfer, uvisor_config_copy, UVISOR_N_TRANSFER,
 342             sc, &sc->sc_mtx);
 343         if (error) {
 344                 DPRINTF("could not allocate all pipes\n");
 345                 goto detach;
 346         }
 347
 348         error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc,
 349             &uvisor_callback, &sc->sc_mtx);
 350         if (error) {
 351                 DPRINTF("ucom_attach failed\n");
 352                 goto detach;
 353         }
 354         ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
 355
 356         return (0);
 357
 358 detach:
 359         uvisor_detach(dev);
 360         return (ENXIO);
 361 }
 362
 363 static int
 364 uvisor_detach(device_t dev)
 365 {
 366         struct uvisor_softc *sc = device_get_softc(dev);
 367
 368         DPRINTF("sc=%p\n", sc);
 369
 370         ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom);
 371         usbd_transfer_unsetup(sc->sc_xfer, UVISOR_N_TRANSFER);
 372
 373         device_claim_softc(dev);
 374
 375         uvisor_free_softc(sc);
 376
 377         return (0);
 378 }
 379
 380 UCOM_UNLOAD_DRAIN(uvisor);
 381
 382 static void
 383 uvisor_free_softc(struct uvisor_softc *sc)
 384 {
 385         if (ucom_unref(&sc->sc_super_ucom)) {
 386                 mtx_destroy(&sc->sc_mtx);
 387                 device_free_softc(sc);
 388         }
 389 }
 390
 391 static void
 392 uvisor_free(struct ucom_softc *ucom)
 393 {
 394         uvisor_free_softc(ucom->sc_parent);
 395 }
 396
 397 static usb_error_t
 398 uvisor_init(struct uvisor_softc *sc, struct usb_device *udev, struct usb_config *config)
 399 {
 400         usb_error_t err = 0;
 401         struct usb_device_request req;
 402         struct uvisor_connection_info coninfo;
 403         struct uvisor_palm_connection_info pconinfo;
 404         uint16_t actlen;
 405         uint8_t buffer[256];
 406
 407         if (sc->sc_flag & UVISOR_FLAG_VISOR) {
 408                 DPRINTF("getting connection info\n");
 409                 req.bmRequestType = UT_READ_VENDOR_ENDPOINT;
 410                 req.bRequest = UVISOR_GET_CONNECTION_INFORMATION;
 411                 USETW(req.wValue, 0);
 412                 USETW(req.wIndex, 0);
 413                 USETW(req.wLength, UVISOR_CONNECTION_INFO_SIZE);
 414                 err = usbd_do_request_flags(udev, NULL,
 415                     &req, &coninfo, USB_SHORT_XFER_OK,
 416                     &actlen, USB_DEFAULT_TIMEOUT);
 417
 418                 if (err) {
 419                         goto done;
 420                 }
 421         }
 422 #ifdef USB_DEBUG
 423         if (sc->sc_flag & UVISOR_FLAG_VISOR) {
 424                 uint16_t i, np;
 425                 const char *desc;
 426
 427                 np = UGETW(coninfo.num_ports);
 428                 if (np > UVISOR_MAX_CONN) {
 429                         np = UVISOR_MAX_CONN;
 430                 }
 431                 DPRINTF("Number of ports: %d\n", np);
 432
 433                 for (i = 0; i < np; ++i) {
 434                         switch (coninfo.connections[i].port_function_id) {
 435                         case UVISOR_FUNCTION_GENERIC:
 436                                 desc = "Generic";
 437                                 break;
 438                         case UVISOR_FUNCTION_DEBUGGER:
 439                                 desc = "Debugger";
 440                                 break;
 441                         case UVISOR_FUNCTION_HOTSYNC:
 442                                 desc = "HotSync";
 443                                 break;
 444                         case UVISOR_FUNCTION_REMOTE_FILE_SYS:
 445                                 desc = "Remote File System";
 446                                 break;
 447                         default:
 448                                 desc = "unknown";
 449                                 break;
 450                         }
 451                         DPRINTF("Port %d is for %s\n",
 452                             coninfo.connections[i].port, desc);
 453                 }
 454         }
 455 #endif
 456
 457         if (sc->sc_flag & UVISOR_FLAG_PALM4) {
 458                 uint8_t port;
 459
 460                 /* Palm OS 4.0 Hack */
 461                 req.bmRequestType = UT_READ_VENDOR_ENDPOINT;
 462                 req.bRequest = UVISOR_GET_PALM_INFORMATION;
 463                 USETW(req.wValue, 0);
 464                 USETW(req.wIndex, 0);
 465                 USETW(req.wLength, UVISOR_GET_PALM_INFORMATION_LEN);
 466
 467                 err = usbd_do_request_flags
 468                     (udev, NULL, &req, &pconinfo, USB_SHORT_XFER_OK,
 469                     &actlen, USB_DEFAULT_TIMEOUT);
 470
 471                 if (err) {
 472                         goto done;
 473                 }
 474                 if (actlen < 12) {
 475                         DPRINTF("too little data\n");
 476                         err = USB_ERR_INVAL;
 477                         goto done;
 478                 }
 479                 if (pconinfo.endpoint_numbers_different) {
 480                         port = pconinfo.connections[0].end_point_info;
 481                         config[0].endpoint = (port & 0xF);      /* output */
 482                         config[1].endpoint = (port >> 4);       /* input */
 483                 } else {
 484                         port = pconinfo.connections[0].port;
 485                         config[0].endpoint = (port & 0xF);      /* output */
 486                         config[1].endpoint = (port & 0xF);      /* input */
 487                 }
 488 #if 0
 489                 req.bmRequestType = UT_READ_VENDOR_ENDPOINT;
 490                 req.bRequest = UVISOR_GET_PALM_INFORMATION;
 491                 USETW(req.wValue, 0);
 492                 USETW(req.wIndex, 0);
 493                 USETW(req.wLength, UVISOR_GET_PALM_INFORMATION_LEN);
 494                 err = usbd_do_request(udev, &req, buffer);
 495                 if (err) {
 496                         goto done;
 497                 }
 498 #endif
 499         }
 500         if (sc->sc_flag & UVISOR_FLAG_PALM35) {
 501                 /* get the config number */
 502                 DPRINTF("getting config info\n");
 503                 req.bmRequestType = UT_READ;
 504                 req.bRequest = UR_GET_CONFIG;
 505                 USETW(req.wValue, 0);
 506                 USETW(req.wIndex, 0);
 507                 USETW(req.wLength, 1);
 508
 509                 err = usbd_do_request(udev, NULL, &req, buffer);
 510                 if (err) {
 511                         goto done;
 512                 }
 513                 /* get the interface number */
 514                 DPRINTF("get the interface number\n");
 515                 req.bmRequestType = UT_READ_DEVICE;
 516                 req.bRequest = UR_GET_INTERFACE;
 517                 USETW(req.wValue, 0);
 518                 USETW(req.wIndex, 0);
 519                 USETW(req.wLength, 1);
 520                 err = usbd_do_request(udev, NULL, &req, buffer);
 521                 if (err) {
 522                         goto done;
 523                 }
 524         }
 525 #if 0
 526         uWord wAvail;
 527
 528         DPRINTF("getting available bytes\n");
 529         req.bmRequestType = UT_READ_VENDOR_ENDPOINT;
 530         req.bRequest = UVISOR_REQUEST_BYTES_AVAILABLE;
 531         USETW(req.wValue, 0);
 532         USETW(req.wIndex, 5);
 533         USETW(req.wLength, sizeof(wAvail));
 534         err = usbd_do_request(udev, NULL, &req, &wAvail);
 535         if (err) {
 536                 goto done;
 537         }
 538         DPRINTF("avail=%d\n", UGETW(wAvail));
 539 #endif
 540
 541         DPRINTF("done\n");
 542 done:
 543         return (err);
 544 }
 545
 546 static void
 547 uvisor_cfg_open(struct ucom_softc *ucom)
 548 {
 549         return;
 550 }
 551
 552 static void
 553 uvisor_cfg_close(struct ucom_softc *ucom)
 554 {
 555         struct uvisor_softc *sc = ucom->sc_parent;
 556         uint8_t buffer[UVISOR_CONNECTION_INFO_SIZE];
 557         struct usb_device_request req;
 558         usb_error_t err;
 559
 560         req.bmRequestType = UT_READ_VENDOR_ENDPOINT;    /* XXX read? */
 561         req.bRequest = UVISOR_CLOSE_NOTIFICATION;
 562         USETW(req.wValue, 0);
 563         USETW(req.wIndex, 0);
 564         USETW(req.wLength, UVISOR_CONNECTION_INFO_SIZE);
 565
 566         err = ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
 567             &req, buffer, 0, 1000);
 568         if (err) {
 569                 DPRINTFN(0, "close notification failed, error=%s\n",
 570                     usbd_errstr(err));
 571         }
 572 }
 573
 574 static void
 575 uvisor_start_read(struct ucom_softc *ucom)
 576 {
 577         struct uvisor_softc *sc = ucom->sc_parent;
 578
 579         usbd_transfer_start(sc->sc_xfer[UVISOR_BULK_DT_RD]);
 580 }
 581
 582 static void
 583 uvisor_stop_read(struct ucom_softc *ucom)
 584 {
 585         struct uvisor_softc *sc = ucom->sc_parent;
 586
 587         usbd_transfer_stop(sc->sc_xfer[UVISOR_BULK_DT_RD]);
 588 }
 589
 590 static void
 591 uvisor_start_write(struct ucom_softc *ucom)
 592 {
 593         struct uvisor_softc *sc = ucom->sc_parent;
 594
 595         usbd_transfer_start(sc->sc_xfer[UVISOR_BULK_DT_WR]);
 596 }
 597
 598 static void
 599 uvisor_stop_write(struct ucom_softc *ucom)
 600 {
 601         struct uvisor_softc *sc = ucom->sc_parent;
 602
 603         usbd_transfer_stop(sc->sc_xfer[UVISOR_BULK_DT_WR]);
 604 }
 605
 606 static void
 607 uvisor_write_callback(struct usb_xfer *xfer, usb_error_t error)
 608 {
 609         struct uvisor_softc *sc = usbd_xfer_softc(xfer);
 610         struct usb_page_cache *pc;
 611         uint32_t actlen;
 612         uint8_t x;
 613
 614         switch (USB_GET_STATE(xfer)) {
 615         case USB_ST_SETUP:
 616         case USB_ST_TRANSFERRED:
 617 tr_setup:
 618                 for (x = 0; x != UVISOROFRAMES; x++) {
 619
 620                         usbd_xfer_set_frame_offset(xfer,
 621                             x * UVISOROBUFSIZE, x);
 622
 623                         pc = usbd_xfer_get_frame(xfer, x);
 624                         if (ucom_get_data(&sc->sc_ucom, pc, 0,
 625                             UVISOROBUFSIZE, &actlen)) {
 626                                 usbd_xfer_set_frame_len(xfer, x, actlen);
 627                         } else {
 628                                 break;
 629                         }
 630                 }
 631                 /* check for data */
 632                 if (x != 0) {
 633                         usbd_xfer_set_frames(xfer, x);
 634                         usbd_transfer_submit(xfer);
 635                 }
 636                 break;
 637
 638         default:                        /* Error */
 639                 if (error != USB_ERR_CANCELLED) {
 640                         /* try to clear stall first */
 641                         usbd_xfer_set_stall(xfer);
 642                         goto tr_setup;
 643                 }
 644                 break;
 645         }
 646 }
 647
 648 static void
 649 uvisor_read_callback(struct usb_xfer *xfer, usb_error_t error)
 650 {
 651         struct uvisor_softc *sc = usbd_xfer_softc(xfer);
 652         struct usb_page_cache *pc;
 653         int actlen;
 654
 655         usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
 656
 657         switch (USB_GET_STATE(xfer)) {
 658         case USB_ST_TRANSFERRED:
 659                 pc = usbd_xfer_get_frame(xfer, 0);
 660                 ucom_put_data(&sc->sc_ucom, pc, 0, actlen);
 661
 662         case USB_ST_SETUP:
 663 tr_setup:
 664                 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
 665                 usbd_transfer_submit(xfer);
 666                 return;
 667
 668         default:                        /* Error */
 669                 if (error != USB_ERR_CANCELLED) {
 670                         /* try to clear stall first */
 671                         usbd_xfer_set_stall(xfer);
 672                         goto tr_setup;
 673                 }
 674                 return;
 675         }
 676 }