sys/bus/u4b/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/param.h>
  52 #include <sys/queue.h>
  53 #include <sys/types.h>
  54 #include <sys/systm.h>
  55 #include <sys/kernel.h>
  56 #include <sys/bus.h>
  57 #include <sys/module.h>
  58 #include <sys/lock.h>
  59 #include <sys/condvar.h>
  60 #include <sys/sysctl.h>
  61 #include <sys/unistd.h>
  62 #include <sys/callout.h>
  63 #include <sys/malloc.h>
  64 #include <sys/priv.h>
  65
  66 #include <bus/u4b/usb.h>
  67 #include <bus/u4b/usbdi.h>
  68 #include <bus/u4b/usbdi_util.h>
  69 #include "usbdevs.h"
  70
  71 #define USB_DEBUG_VAR uvisor_debug
  72 #include <bus/u4b/usb_debug.h>
  73 #include <bus/u4b/usb_process.h>
  74
  75 #include <bus/u4b/serial/usb_serial.h>
  76
  77 #ifdef USB_DEBUG
  78 static int uvisor_debug = 0;
  79
  80 static SYSCTL_NODE(_hw_usb, OID_AUTO, uvisor, CTLFLAG_RW, 0, "USB uvisor");
  81 SYSCTL_INT(_hw_usb_uvisor, OID_AUTO, debug, CTLFLAG_RW,
  82     &uvisor_debug, 0, "Debug level");
  83 #endif
  84
  85 #define UVISOR_CONFIG_INDEX     0
  86 #define UVISOR_IFACE_INDEX      0
  87
  88 /*
  89  * The following buffer sizes are hardcoded due to the way the Palm
  90  * firmware works. It looks like the device is not short terminating
  91  * the data transferred.
  92  */
  93 #define UVISORIBUFSIZE         0        /* Use wMaxPacketSize */
  94 #define UVISOROBUFSIZE         32       /* bytes */
  95 #define UVISOROFRAMES          32       /* units */
  96
  97 /* From the Linux driver */
  98 /*
  99  * UVISOR_REQUEST_BYTES_AVAILABLE asks the visor for the number of bytes that
 100  * are available to be transfered to the host for the specified endpoint.
 101  * Currently this is not used, and always returns 0x0001
 102  */
 103 #define UVISOR_REQUEST_BYTES_AVAILABLE          0x01
 104
 105 /*
 106  * UVISOR_CLOSE_NOTIFICATION is set to the device to notify it that the host
 107  * is now closing the pipe. An empty packet is sent in response.
 108  */
 109 #define UVISOR_CLOSE_NOTIFICATION               0x02
 110
 111 /*
 112  * UVISOR_GET_CONNECTION_INFORMATION is sent by the host during enumeration to
 113  * get the endpoints used by the connection.
 114  */
 115 #define UVISOR_GET_CONNECTION_INFORMATION       0x03
 116
 117 /*
 118  * UVISOR_GET_CONNECTION_INFORMATION returns data in the following format
 119  */
 120 #define UVISOR_MAX_CONN 8
 121 struct uvisor_connection_info {
 122         uWord   num_ports;
 123         struct {
 124                 uByte   port_function_id;
 125                 uByte   port;
 126         } __packed connections[UVISOR_MAX_CONN];
 127 } __packed;
 128
 129 #define UVISOR_CONNECTION_INFO_SIZE 18
 130
 131 /* struct uvisor_connection_info.connection[x].port defines: */
 132 #define UVISOR_ENDPOINT_1               0x01
 133 #define UVISOR_ENDPOINT_2               0x02
 134
 135 /* struct uvisor_connection_info.connection[x].port_function_id defines: */
 136 #define UVISOR_FUNCTION_GENERIC         0x00
 137 #define UVISOR_FUNCTION_DEBUGGER        0x01
 138 #define UVISOR_FUNCTION_HOTSYNC         0x02
 139 #define UVISOR_FUNCTION_CONSOLE         0x03
 140 #define UVISOR_FUNCTION_REMOTE_FILE_SYS 0x04
 141
 142 /*
 143  * Unknown PalmOS stuff.
 144  */
 145 #define UVISOR_GET_PALM_INFORMATION             0x04
 146 #define UVISOR_GET_PALM_INFORMATION_LEN         0x44
 147
 148 struct uvisor_palm_connection_info {
 149         uByte   num_ports;
 150         uByte   endpoint_numbers_different;
 151         uWord   reserved1;
 152         struct {
 153                 uDWord  port_function_id;
 154                 uByte   port;
 155                 uByte   end_point_info;
 156                 uWord   reserved;
 157         } __packed connections[UVISOR_MAX_CONN];
 158 } __packed;
 159
 160 enum {
 161         UVISOR_BULK_DT_WR,
 162         UVISOR_BULK_DT_RD,
 163         UVISOR_N_TRANSFER,
 164 };
 165
 166 struct uvisor_softc {
 167         struct ucom_super_softc sc_super_ucom;
 168         struct ucom_softc sc_ucom;
 169
 170         struct usb_xfer *sc_xfer[UVISOR_N_TRANSFER];
 171         struct usb_device *sc_udev;
 172         struct lock sc_lock;
 173
 174         uint16_t sc_flag;
 175 #define UVISOR_FLAG_PALM4       0x0001
 176 #define UVISOR_FLAG_VISOR       0x0002
 177 #define UVISOR_FLAG_PALM35      0x0004
 178 #define UVISOR_FLAG_SEND_NOTIFY 0x0008
 179
 180         uint8_t sc_iface_no;
 181         uint8_t sc_iface_index;
 182 };
 183
 184 /* prototypes */
 185
 186 static device_probe_t uvisor_probe;
 187 static device_attach_t uvisor_attach;
 188 static device_detach_t uvisor_detach;
 189
 190 static usb_callback_t uvisor_write_callback;
 191 static usb_callback_t uvisor_read_callback;
 192
 193 static usb_error_t uvisor_init(struct uvisor_softc *, struct usb_device *,
 194                     struct usb_config *);
 195 static void     uvisor_cfg_open(struct ucom_softc *);
 196 static void     uvisor_cfg_close(struct ucom_softc *);
 197 static void     uvisor_start_read(struct ucom_softc *);
 198 static void     uvisor_stop_read(struct ucom_softc *);
 199 static void     uvisor_start_write(struct ucom_softc *);
 200 static void     uvisor_stop_write(struct ucom_softc *);
 201
 202 static const struct usb_config uvisor_config[UVISOR_N_TRANSFER] = {
 203
 204         [UVISOR_BULK_DT_WR] = {
 205                 .type = UE_BULK,
 206                 .endpoint = UE_ADDR_ANY,
 207                 .direction = UE_DIR_OUT,
 208                 .bufsize = UVISOROBUFSIZE * UVISOROFRAMES,
 209                 .frames = UVISOROFRAMES,
 210                 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
 211                 .callback = &uvisor_write_callback,
 212         },
 213
 214         [UVISOR_BULK_DT_RD] = {
 215                 .type = UE_BULK,
 216                 .endpoint = UE_ADDR_ANY,
 217                 .direction = UE_DIR_IN,
 218                 .bufsize = UVISORIBUFSIZE,
 219                 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
 220                 .callback = &uvisor_read_callback,
 221         },
 222 };
 223
 224 static const struct ucom_callback uvisor_callback = {
 225         .ucom_cfg_open = &uvisor_cfg_open,
 226         .ucom_cfg_close = &uvisor_cfg_close,
 227         .ucom_start_read = &uvisor_start_read,
 228         .ucom_stop_read = &uvisor_stop_read,
 229         .ucom_start_write = &uvisor_start_write,
 230         .ucom_stop_write = &uvisor_stop_write,
 231 };
 232
 233 static device_method_t uvisor_methods[] = {
 234         DEVMETHOD(device_probe, uvisor_probe),
 235         DEVMETHOD(device_attach, uvisor_attach),
 236         DEVMETHOD(device_detach, uvisor_detach),
 237         DEVMETHOD_END
 238 };
 239
 240 static devclass_t uvisor_devclass;
 241
 242 static driver_t uvisor_driver = {
 243         .name = "uvisor",
 244         .methods = uvisor_methods,
 245         .size = sizeof(struct uvisor_softc),
 246 };
 247
 248 DRIVER_MODULE(uvisor, uhub, uvisor_driver, uvisor_devclass, NULL, 0);
 249 MODULE_DEPEND(uvisor, ucom, 1, 1, 1);
 250 MODULE_DEPEND(uvisor, usb, 1, 1, 1);
 251 MODULE_VERSION(uvisor, 1);
 252
 253 static const STRUCT_USB_HOST_ID uvisor_devs[] = {
 254 #define UVISOR_DEV(v,p,i) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, i) }
 255         UVISOR_DEV(ACEECA, MEZ1000, UVISOR_FLAG_PALM4),
 256         UVISOR_DEV(ALPHASMART, DANA_SYNC, UVISOR_FLAG_PALM4),
 257         UVISOR_DEV(GARMIN, IQUE_3600, UVISOR_FLAG_PALM4),
 258         UVISOR_DEV(FOSSIL, WRISTPDA, UVISOR_FLAG_PALM4),
 259         UVISOR_DEV(HANDSPRING, VISOR, UVISOR_FLAG_VISOR),
 260         UVISOR_DEV(HANDSPRING, TREO, UVISOR_FLAG_PALM4),
 261         UVISOR_DEV(HANDSPRING, TREO600, UVISOR_FLAG_PALM4),
 262         UVISOR_DEV(PALM, M500, UVISOR_FLAG_PALM4),
 263         UVISOR_DEV(PALM, M505, UVISOR_FLAG_PALM4),
 264         UVISOR_DEV(PALM, M515, UVISOR_FLAG_PALM4),
 265         UVISOR_DEV(PALM, I705, UVISOR_FLAG_PALM4),
 266         UVISOR_DEV(PALM, M125, UVISOR_FLAG_PALM4),
 267         UVISOR_DEV(PALM, M130, UVISOR_FLAG_PALM4),
 268         UVISOR_DEV(PALM, TUNGSTEN_Z, UVISOR_FLAG_PALM4),
 269         UVISOR_DEV(PALM, TUNGSTEN_T, UVISOR_FLAG_PALM4),
 270         UVISOR_DEV(PALM, ZIRE, UVISOR_FLAG_PALM4),
 271         UVISOR_DEV(PALM, ZIRE31, UVISOR_FLAG_PALM4),
 272         UVISOR_DEV(SAMSUNG, I500, UVISOR_FLAG_PALM4),
 273         UVISOR_DEV(SONY, CLIE_40, 0),
 274         UVISOR_DEV(SONY, CLIE_41, 0),
 275         UVISOR_DEV(SONY, CLIE_S360, UVISOR_FLAG_PALM4),
 276         UVISOR_DEV(SONY, CLIE_NX60, UVISOR_FLAG_PALM4),
 277         UVISOR_DEV(SONY, CLIE_35, UVISOR_FLAG_PALM35),
 278 /*  UVISOR_DEV(SONY, CLIE_25, UVISOR_FLAG_PALM4 ), */
 279         UVISOR_DEV(SONY, CLIE_TJ37, UVISOR_FLAG_PALM4),
 280 /*  UVISOR_DEV(SONY, CLIE_TH55, UVISOR_FLAG_PALM4 ), See PR 80935 */
 281         UVISOR_DEV(TAPWAVE, ZODIAC, UVISOR_FLAG_PALM4),
 282 #undef UVISOR_DEV
 283 };
 284
 285 static int
 286 uvisor_probe(device_t dev)
 287 {
 288         struct usb_attach_arg *uaa = device_get_ivars(dev);
 289
 290         if (uaa->usb_mode != USB_MODE_HOST) {
 291                 return (ENXIO);
 292         }
 293         if (uaa->info.bConfigIndex != UVISOR_CONFIG_INDEX) {
 294                 return (ENXIO);
 295         }
 296         if (uaa->info.bIfaceIndex != UVISOR_IFACE_INDEX) {
 297                 return (ENXIO);
 298         }
 299         return (usbd_lookup_id_by_uaa(uvisor_devs, sizeof(uvisor_devs), uaa));
 300 }
 301
 302 static int
 303 uvisor_attach(device_t dev)
 304 {
 305         struct usb_attach_arg *uaa = device_get_ivars(dev);
 306         struct uvisor_softc *sc = device_get_softc(dev);
 307         struct usb_config uvisor_config_copy[UVISOR_N_TRANSFER];
 308         int error;
 309
 310         DPRINTF("sc=%p\n", sc);
 311         memcpy(uvisor_config_copy, uvisor_config,
 312             sizeof(uvisor_config_copy));
 313
 314         device_set_usb_desc(dev);
 315
 316         lockinit(&sc->sc_lock, "uvisor", 0, LK_CANRECURSE);
 317
 318         sc->sc_udev = uaa->device;
 319
 320         /* configure the device */
 321
 322         sc->sc_flag = USB_GET_DRIVER_INFO(uaa);
 323         sc->sc_iface_no = uaa->info.bIfaceNum;
 324         sc->sc_iface_index = UVISOR_IFACE_INDEX;
 325
 326         error = uvisor_init(sc, uaa->device, uvisor_config_copy);
 327
 328         if (error) {
 329                 DPRINTF("init failed, error=%s\n",
 330                     usbd_errstr(error));
 331                 goto detach;
 332         }
 333         error = usbd_transfer_setup(uaa->device, &sc->sc_iface_index,
 334             sc->sc_xfer, uvisor_config_copy, UVISOR_N_TRANSFER,
 335             sc, &sc->sc_lock);
 336         if (error) {
 337                 DPRINTF("could not allocate all pipes\n");
 338                 goto detach;
 339         }
 340
 341         error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc,
 342             &uvisor_callback, &sc->sc_lock);
 343         if (error) {
 344                 DPRINTF("ucom_attach failed\n");
 345                 goto detach;
 346         }
 347         ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
 348
 349         return (0);
 350
 351 detach:
 352         uvisor_detach(dev);
 353         return (ENXIO);
 354 }
 355
 356 static int
 357 uvisor_detach(device_t dev)
 358 {
 359         struct uvisor_softc *sc = device_get_softc(dev);
 360
 361         DPRINTF("sc=%p\n", sc);
 362
 363         ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom);
 364         usbd_transfer_unsetup(sc->sc_xfer, UVISOR_N_TRANSFER);
 365         lockuninit(&sc->sc_lock);
 366
 367         return (0);
 368 }
 369
 370 static usb_error_t
 371 uvisor_init(struct uvisor_softc *sc, struct usb_device *udev, struct usb_config *config)
 372 {
 373         usb_error_t err = 0;
 374         struct usb_device_request req;
 375         struct uvisor_connection_info coninfo;
 376         struct uvisor_palm_connection_info pconinfo;
 377         uint16_t actlen;
 378         uint8_t buffer[256];
 379
 380         if (sc->sc_flag & UVISOR_FLAG_VISOR) {
 381                 DPRINTF("getting connection info\n");
 382                 req.bmRequestType = UT_READ_VENDOR_ENDPOINT;
 383                 req.bRequest = UVISOR_GET_CONNECTION_INFORMATION;
 384                 USETW(req.wValue, 0);
 385                 USETW(req.wIndex, 0);
 386                 USETW(req.wLength, UVISOR_CONNECTION_INFO_SIZE);
 387                 err = usbd_do_request_flags(udev, NULL,
 388                     &req, &coninfo, USB_SHORT_XFER_OK,
 389                     &actlen, USB_DEFAULT_TIMEOUT);
 390
 391                 if (err) {
 392                         goto done;
 393                 }
 394         }
 395 #ifdef USB_DEBUG
 396         if (sc->sc_flag & UVISOR_FLAG_VISOR) {
 397                 uint16_t i, np;
 398                 const char *desc;
 399
 400                 np = UGETW(coninfo.num_ports);
 401                 if (np > UVISOR_MAX_CONN) {
 402                         np = UVISOR_MAX_CONN;
 403                 }
 404                 DPRINTF("Number of ports: %d\n", np);
 405
 406                 for (i = 0; i < np; ++i) {
 407                         switch (coninfo.connections[i].port_function_id) {
 408                         case UVISOR_FUNCTION_GENERIC:
 409                                 desc = "Generic";
 410                                 break;
 411                         case UVISOR_FUNCTION_DEBUGGER:
 412                                 desc = "Debugger";
 413                                 break;
 414                         case UVISOR_FUNCTION_HOTSYNC:
 415                                 desc = "HotSync";
 416                                 break;
 417                         case UVISOR_FUNCTION_REMOTE_FILE_SYS:
 418                                 desc = "Remote File System";
 419                                 break;
 420                         default:
 421                                 desc = "unknown";
 422                                 break;
 423                         }
 424                         DPRINTF("Port %d is for %s\n",
 425                             coninfo.connections[i].port, desc);
 426                 }
 427         }
 428 #endif
 429
 430         if (sc->sc_flag & UVISOR_FLAG_PALM4) {
 431                 uint8_t port;
 432
 433                 /* Palm OS 4.0 Hack */
 434                 req.bmRequestType = UT_READ_VENDOR_ENDPOINT;
 435                 req.bRequest = UVISOR_GET_PALM_INFORMATION;
 436                 USETW(req.wValue, 0);
 437                 USETW(req.wIndex, 0);
 438                 USETW(req.wLength, UVISOR_GET_PALM_INFORMATION_LEN);
 439
 440                 err = usbd_do_request_flags
 441                     (udev, NULL, &req, &pconinfo, USB_SHORT_XFER_OK,
 442                     &actlen, USB_DEFAULT_TIMEOUT);
 443
 444                 if (err) {
 445                         goto done;
 446                 }
 447                 if (actlen < 12) {
 448                         DPRINTF("too little data\n");
 449                         err = USB_ERR_INVAL;
 450                         goto done;
 451                 }
 452                 if (pconinfo.endpoint_numbers_different) {
 453                         port = pconinfo.connections[0].end_point_info;
 454                         config[0].endpoint = (port & 0xF);      /* output */
 455                         config[1].endpoint = (port >> 4);       /* input */
 456                 } else {
 457                         port = pconinfo.connections[0].port;
 458                         config[0].endpoint = (port & 0xF);      /* output */
 459                         config[1].endpoint = (port & 0xF);      /* input */
 460                 }
 461 #if 0
 462                 req.bmRequestType = UT_READ_VENDOR_ENDPOINT;
 463                 req.bRequest = UVISOR_GET_PALM_INFORMATION;
 464                 USETW(req.wValue, 0);
 465                 USETW(req.wIndex, 0);
 466                 USETW(req.wLength, UVISOR_GET_PALM_INFORMATION_LEN);
 467                 err = usbd_do_request(udev, &req, buffer);
 468                 if (err) {
 469                         goto done;
 470                 }
 471 #endif
 472         }
 473         if (sc->sc_flag & UVISOR_FLAG_PALM35) {
 474                 /* get the config number */
 475                 DPRINTF("getting config info\n");
 476                 req.bmRequestType = UT_READ;
 477                 req.bRequest = UR_GET_CONFIG;
 478                 USETW(req.wValue, 0);
 479                 USETW(req.wIndex, 0);
 480                 USETW(req.wLength, 1);
 481
 482                 err = usbd_do_request(udev, NULL, &req, buffer);
 483                 if (err) {
 484                         goto done;
 485                 }
 486                 /* get the interface number */
 487                 DPRINTF("get the interface number\n");
 488                 req.bmRequestType = UT_READ_DEVICE;
 489                 req.bRequest = UR_GET_INTERFACE;
 490                 USETW(req.wValue, 0);
 491                 USETW(req.wIndex, 0);
 492                 USETW(req.wLength, 1);
 493                 err = usbd_do_request(udev, NULL, &req, buffer);
 494                 if (err) {
 495                         goto done;
 496                 }
 497         }
 498 #if 0
 499         uWord wAvail;
 500
 501         DPRINTF("getting available bytes\n");
 502         req.bmRequestType = UT_READ_VENDOR_ENDPOINT;
 503         req.bRequest = UVISOR_REQUEST_BYTES_AVAILABLE;
 504         USETW(req.wValue, 0);
 505         USETW(req.wIndex, 5);
 506         USETW(req.wLength, sizeof(wAvail));
 507         err = usbd_do_request(udev, NULL, &req, &wAvail);
 508         if (err) {
 509                 goto done;
 510         }
 511         DPRINTF("avail=%d\n", UGETW(wAvail));
 512 #endif
 513
 514         DPRINTF("done\n");
 515 done:
 516         return (err);
 517 }
 518
 519 static void
 520 uvisor_cfg_open(struct ucom_softc *ucom)
 521 {
 522         return;
 523 }
 524
 525 static void
 526 uvisor_cfg_close(struct ucom_softc *ucom)
 527 {
 528         struct uvisor_softc *sc = ucom->sc_parent;
 529         uint8_t buffer[UVISOR_CONNECTION_INFO_SIZE];
 530         struct usb_device_request req;
 531         usb_error_t err;
 532
 533         req.bmRequestType = UT_READ_VENDOR_ENDPOINT;    /* XXX read? */
 534         req.bRequest = UVISOR_CLOSE_NOTIFICATION;
 535         USETW(req.wValue, 0);
 536         USETW(req.wIndex, 0);
 537         USETW(req.wLength, UVISOR_CONNECTION_INFO_SIZE);
 538
 539         err = ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
 540             &req, buffer, 0, 1000);
 541         if (err) {
 542                 DPRINTFN(0, "close notification failed, error=%s\n",
 543                     usbd_errstr(err));
 544         }
 545 }
 546
 547 static void
 548 uvisor_start_read(struct ucom_softc *ucom)
 549 {
 550         struct uvisor_softc *sc = ucom->sc_parent;
 551
 552         usbd_transfer_start(sc->sc_xfer[UVISOR_BULK_DT_RD]);
 553 }
 554
 555 static void
 556 uvisor_stop_read(struct ucom_softc *ucom)
 557 {
 558         struct uvisor_softc *sc = ucom->sc_parent;
 559
 560         usbd_transfer_stop(sc->sc_xfer[UVISOR_BULK_DT_RD]);
 561 }
 562
 563 static void
 564 uvisor_start_write(struct ucom_softc *ucom)
 565 {
 566         struct uvisor_softc *sc = ucom->sc_parent;
 567
 568         usbd_transfer_start(sc->sc_xfer[UVISOR_BULK_DT_WR]);
 569 }
 570
 571 static void
 572 uvisor_stop_write(struct ucom_softc *ucom)
 573 {
 574         struct uvisor_softc *sc = ucom->sc_parent;
 575
 576         usbd_transfer_stop(sc->sc_xfer[UVISOR_BULK_DT_WR]);
 577 }
 578
 579 static void
 580 uvisor_write_callback(struct usb_xfer *xfer, usb_error_t error)
 581 {
 582         struct uvisor_softc *sc = usbd_xfer_softc(xfer);
 583         struct usb_page_cache *pc;
 584         uint32_t actlen;
 585         uint8_t x;
 586
 587         switch (USB_GET_STATE(xfer)) {
 588         case USB_ST_SETUP:
 589         case USB_ST_TRANSFERRED:
 590 tr_setup:
 591                 for (x = 0; x != UVISOROFRAMES; x++) {
 592
 593                         usbd_xfer_set_frame_offset(xfer,
 594                             x * UVISOROBUFSIZE, x);
 595
 596                         pc = usbd_xfer_get_frame(xfer, x);
 597                         if (ucom_get_data(&sc->sc_ucom, pc, 0,
 598                             UVISOROBUFSIZE, &actlen)) {
 599                                 usbd_xfer_set_frame_len(xfer, x, actlen);
 600                         } else {
 601                                 break;
 602                         }
 603                 }
 604                 /* check for data */
 605                 if (x != 0) {
 606                         usbd_xfer_set_frames(xfer, x);
 607                         usbd_transfer_submit(xfer);
 608                 }
 609                 break;
 610
 611         default:                        /* Error */
 612                 if (error != USB_ERR_CANCELLED) {
 613                         /* try to clear stall first */
 614                         usbd_xfer_set_stall(xfer);
 615                         goto tr_setup;
 616                 }
 617                 break;
 618         }
 619 }
 620
 621 static void
 622 uvisor_read_callback(struct usb_xfer *xfer, usb_error_t error)
 623 {
 624         struct uvisor_softc *sc = usbd_xfer_softc(xfer);
 625         struct usb_page_cache *pc;
 626         int actlen;
 627
 628         usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
 629
 630         switch (USB_GET_STATE(xfer)) {
 631         case USB_ST_TRANSFERRED:
 632                 pc = usbd_xfer_get_frame(xfer, 0);
 633                 ucom_put_data(&sc->sc_ucom, pc, 0, actlen);
 634
 635         case USB_ST_SETUP:
 636 tr_setup:
 637                 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
 638                 usbd_transfer_submit(xfer);
 639                 return;
 640
 641         default:                        /* Error */
 642                 if (error != USB_ERR_CANCELLED) {
 643                         /* try to clear stall first */
 644                         usbd_xfer_set_stall(xfer);
 645                         goto tr_setup;
 646                 }
 647                 return;
 648         }
 649 }