sys/dev/usb/input/ums.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   3  *
   4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Lennart Augustsson (lennart@augustsson.net) at
   9  * Carlstedt Research & Technology.
  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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  30  * POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <sys/cdefs.h>
  34 __FBSDID("$FreeBSD$");
  35
  36 /*
  37  * HID spec: http://www.usb.org/developers/devclass_docs/HID1_11.pdf
  38  */
  39
  40 #include "opt_evdev.h"
  41
  42 #include <sys/stdint.h>
  43 #include <sys/stddef.h>
  44 #include <sys/param.h>
  45 #include <sys/queue.h>
  46 #include <sys/types.h>
  47 #include <sys/systm.h>
  48 #include <sys/kernel.h>
  49 #include <sys/bus.h>
  50 #include <sys/module.h>
  51 #include <sys/lock.h>
  52 #include <sys/mutex.h>
  53 #include <sys/condvar.h>
  54 #include <sys/sysctl.h>
  55 #include <sys/sx.h>
  56 #include <sys/unistd.h>
  57 #include <sys/callout.h>
  58 #include <sys/malloc.h>
  59 #include <sys/priv.h>
  60 #include <sys/conf.h>
  61 #include <sys/fcntl.h>
  62 #include <sys/sbuf.h>
  63
  64 #include <dev/usb/usb.h>
  65 #include <dev/usb/usbdi.h>
  66 #include <dev/usb/usbdi_util.h>
  67 #include <dev/usb/usbhid.h>
  68 #include "usbdevs.h"
  69
  70 #define USB_DEBUG_VAR ums_debug
  71 #include <dev/usb/usb_debug.h>
  72
  73 #include <dev/usb/quirk/usb_quirk.h>
  74
  75 #ifdef EVDEV_SUPPORT
  76 #include <dev/evdev/input.h>
  77 #include <dev/evdev/evdev.h>
  78 #endif
  79
  80 #include <sys/ioccom.h>
  81 #include <sys/filio.h>
  82 #include <sys/mouse.h>
  83
  84 #ifdef USB_DEBUG
  85 static int ums_debug = 0;
  86
  87 static SYSCTL_NODE(_hw_usb, OID_AUTO, ums, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
  88     "USB ums");
  89 SYSCTL_INT(_hw_usb_ums, OID_AUTO, debug, CTLFLAG_RWTUN,
  90     &ums_debug, 0, "Debug level");
  91 #endif
  92
  93 #define MOUSE_FLAGS_MASK (HIO_CONST|HIO_RELATIVE)
  94 #define MOUSE_FLAGS (HIO_RELATIVE)
  95
  96 #define UMS_BUF_SIZE      8             /* bytes */
  97 #define UMS_IFQ_MAXLEN   50             /* units */
  98 #define UMS_BUTTON_MAX   31             /* exclusive, must be less than 32 */
  99 #define UMS_BUT(i) ((i) < 3 ? (((i) + 2) % 3) : (i))
 100 #define UMS_INFO_MAX      2             /* maximum number of HID sets */
 101
 102 enum {
 103         UMS_INTR_DT,
 104         UMS_N_TRANSFER,
 105 };
 106
 107 struct ums_info {
 108         struct hid_location sc_loc_w;
 109         struct hid_location sc_loc_x;
 110         struct hid_location sc_loc_y;
 111         struct hid_location sc_loc_z;
 112         struct hid_location sc_loc_t;
 113         struct hid_location sc_loc_btn[UMS_BUTTON_MAX];
 114
 115         uint32_t sc_flags;
 116 #define UMS_FLAG_X_AXIS     0x0001
 117 #define UMS_FLAG_Y_AXIS     0x0002
 118 #define UMS_FLAG_Z_AXIS     0x0004
 119 #define UMS_FLAG_T_AXIS     0x0008
 120 #define UMS_FLAG_SBU        0x0010      /* spurious button up events */
 121 #define UMS_FLAG_REVZ       0x0020      /* Z-axis is reversed */
 122 #define UMS_FLAG_W_AXIS     0x0040
 123
 124         uint8_t sc_iid_w;
 125         uint8_t sc_iid_x;
 126         uint8_t sc_iid_y;
 127         uint8_t sc_iid_z;
 128         uint8_t sc_iid_t;
 129         uint8_t sc_iid_btn[UMS_BUTTON_MAX];
 130         uint8_t sc_buttons;
 131 };
 132
 133 struct ums_softc {
 134         struct usb_fifo_sc sc_fifo;
 135         struct mtx sc_mtx;
 136         struct usb_callout sc_callout;
 137         struct ums_info sc_info[UMS_INFO_MAX];
 138
 139         mousehw_t sc_hw;
 140         mousemode_t sc_mode;
 141         mousestatus_t sc_status;
 142
 143         struct usb_xfer *sc_xfer[UMS_N_TRANSFER];
 144
 145         int sc_pollrate;
 146         int sc_fflags;
 147 #ifdef EVDEV_SUPPORT
 148         int sc_evflags;
 149 #define UMS_EVDEV_OPENED        1
 150 #endif
 151
 152         uint8_t sc_buttons;
 153         uint8_t sc_iid;
 154         uint8_t sc_temp[64];
 155
 156 #ifdef EVDEV_SUPPORT
 157         struct evdev_dev *sc_evdev;
 158 #endif
 159 };
 160
 161 static void ums_put_queue_timeout(void *__sc);
 162
 163 static usb_callback_t ums_intr_callback;
 164
 165 static device_probe_t ums_probe;
 166 static device_attach_t ums_attach;
 167 static device_detach_t ums_detach;
 168
 169 static usb_fifo_cmd_t ums_fifo_start_read;
 170 static usb_fifo_cmd_t ums_fifo_stop_read;
 171 static usb_fifo_open_t ums_fifo_open;
 172 static usb_fifo_close_t ums_fifo_close;
 173 static usb_fifo_ioctl_t ums_fifo_ioctl;
 174
 175 #ifdef EVDEV_SUPPORT
 176 static evdev_open_t ums_ev_open;
 177 static evdev_close_t ums_ev_close;
 178 static void ums_evdev_push(struct ums_softc *, int32_t, int32_t,
 179     int32_t, int32_t, int32_t);
 180 #endif
 181
 182 static void     ums_start_rx(struct ums_softc *);
 183 static void     ums_stop_rx(struct ums_softc *);
 184 static void     ums_put_queue(struct ums_softc *, int32_t, int32_t,
 185                     int32_t, int32_t, int32_t);
 186 static int      ums_sysctl_handler_parseinfo(SYSCTL_HANDLER_ARGS);
 187
 188 static struct usb_fifo_methods ums_fifo_methods = {
 189         .f_open = &ums_fifo_open,
 190         .f_close = &ums_fifo_close,
 191         .f_ioctl = &ums_fifo_ioctl,
 192         .f_start_read = &ums_fifo_start_read,
 193         .f_stop_read = &ums_fifo_stop_read,
 194         .basename[0] = "ums",
 195 };
 196
 197 #ifdef EVDEV_SUPPORT
 198 static const struct evdev_methods ums_evdev_methods = {
 199         .ev_open = &ums_ev_open,
 200         .ev_close = &ums_ev_close,
 201 };
 202 #endif
 203
 204 static void
 205 ums_put_queue_timeout(void *__sc)
 206 {
 207         struct ums_softc *sc = __sc;
 208
 209         mtx_assert(&sc->sc_mtx, MA_OWNED);
 210
 211         ums_put_queue(sc, 0, 0, 0, 0, 0);
 212 #ifdef EVDEV_SUPPORT
 213         ums_evdev_push(sc, 0, 0, 0, 0, 0);
 214 #endif
 215 }
 216
 217 static void
 218 ums_intr_callback(struct usb_xfer *xfer, usb_error_t error)
 219 {
 220         struct ums_softc *sc = usbd_xfer_softc(xfer);
 221         struct ums_info *info = &sc->sc_info[0];
 222         struct usb_page_cache *pc;
 223         uint8_t *buf = sc->sc_temp;
 224         int32_t buttons = 0;
 225         int32_t buttons_found = 0;
 226 #ifdef EVDEV_SUPPORT
 227         int32_t buttons_reported = 0;
 228 #endif
 229         int32_t dw = 0;
 230         int32_t dx = 0;
 231         int32_t dy = 0;
 232         int32_t dz = 0;
 233         int32_t dt = 0;
 234         uint8_t i;
 235         uint8_t id;
 236         int len;
 237
 238         usbd_xfer_status(xfer, &len, NULL, NULL, NULL);
 239
 240         switch (USB_GET_STATE(xfer)) {
 241         case USB_ST_TRANSFERRED:
 242                 DPRINTFN(6, "sc=%p actlen=%d\n", sc, len);
 243
 244                 if (len > (int)sizeof(sc->sc_temp)) {
 245                         DPRINTFN(6, "truncating large packet to %zu bytes\n",
 246                             sizeof(sc->sc_temp));
 247                         len = sizeof(sc->sc_temp);
 248                 }
 249                 if (len == 0)
 250                         goto tr_setup;
 251
 252                 pc = usbd_xfer_get_frame(xfer, 0);
 253                 usbd_copy_out(pc, 0, buf, len);
 254
 255                 DPRINTFN(6, "data = %02x %02x %02x %02x "
 256                     "%02x %02x %02x %02x\n",
 257                     (len > 0) ? buf[0] : 0, (len > 1) ? buf[1] : 0,
 258                     (len > 2) ? buf[2] : 0, (len > 3) ? buf[3] : 0,
 259                     (len > 4) ? buf[4] : 0, (len > 5) ? buf[5] : 0,
 260                     (len > 6) ? buf[6] : 0, (len > 7) ? buf[7] : 0);
 261
 262                 if (sc->sc_iid) {
 263                         id = *buf;
 264
 265                         len--;
 266                         buf++;
 267
 268                 } else {
 269                         id = 0;
 270                         if (sc->sc_info[0].sc_flags & UMS_FLAG_SBU) {
 271                                 if ((*buf == 0x14) || (*buf == 0x15)) {
 272                                         goto tr_setup;
 273                                 }
 274                         }
 275                 }
 276
 277         repeat:
 278                 if ((info->sc_flags & UMS_FLAG_W_AXIS) &&
 279                     (id == info->sc_iid_w))
 280                         dw += hid_get_data(buf, len, &info->sc_loc_w);
 281
 282                 if ((info->sc_flags & UMS_FLAG_X_AXIS) &&
 283                     (id == info->sc_iid_x))
 284                         dx += hid_get_data(buf, len, &info->sc_loc_x);
 285
 286                 if ((info->sc_flags & UMS_FLAG_Y_AXIS) &&
 287                     (id == info->sc_iid_y))
 288                         dy -= hid_get_data(buf, len, &info->sc_loc_y);
 289
 290                 if ((info->sc_flags & UMS_FLAG_Z_AXIS) &&
 291                     (id == info->sc_iid_z)) {
 292                         int32_t temp;
 293                         temp = hid_get_data(buf, len, &info->sc_loc_z);
 294                         if (info->sc_flags & UMS_FLAG_REVZ)
 295                                 temp = -temp;
 296                         dz -= temp;
 297                 }
 298
 299                 if ((info->sc_flags & UMS_FLAG_T_AXIS) &&
 300                     (id == info->sc_iid_t)) {
 301                         dt += hid_get_data(buf, len, &info->sc_loc_t);
 302                         /* T-axis is translated into button presses */
 303                         buttons_found |= (1UL << 5) | (1UL << 6);
 304                 }
 305
 306                 for (i = 0; i < info->sc_buttons; i++) {
 307                         uint32_t mask;
 308                         mask = 1UL << UMS_BUT(i);
 309                         /* check for correct button ID */
 310                         if (id != info->sc_iid_btn[i])
 311                                 continue;
 312                         /* check for button pressed */
 313                         if (hid_get_data(buf, len, &info->sc_loc_btn[i]))
 314                                 buttons |= mask;
 315                         /* register button mask */
 316                         buttons_found |= mask;
 317                 }
 318
 319                 if (++info != &sc->sc_info[UMS_INFO_MAX])
 320                         goto repeat;
 321
 322 #ifdef EVDEV_SUPPORT
 323                 buttons_reported = buttons;
 324 #endif
 325                 /* keep old button value(s) for non-detected buttons */
 326                 buttons |= sc->sc_status.button & ~buttons_found;
 327
 328                 if (dx || dy || dz || dt || dw ||
 329                     (buttons != sc->sc_status.button)) {
 330
 331                         DPRINTFN(6, "x:%d y:%d z:%d t:%d w:%d buttons:0x%08x\n",
 332                             dx, dy, dz, dt, dw, buttons);
 333
 334                         /* translate T-axis into button presses until further */
 335                         if (dt > 0) {
 336                                 ums_put_queue(sc, 0, 0, 0, 0, buttons);
 337                                 buttons |= 1UL << 6;
 338                         } else if (dt < 0) {
 339                                 ums_put_queue(sc, 0, 0, 0, 0, buttons);
 340                                 buttons |= 1UL << 5;
 341                         }
 342
 343                         sc->sc_status.button = buttons;
 344                         sc->sc_status.dx += dx;
 345                         sc->sc_status.dy += dy;
 346                         sc->sc_status.dz += dz;
 347                         /*
 348                          * sc->sc_status.dt += dt;
 349                          * no way to export this yet
 350                          */
 351
 352                         /*
 353                          * The Qtronix keyboard has a built in PS/2
 354                          * port for a mouse.  The firmware once in a
 355                          * while posts a spurious button up
 356                          * event. This event we ignore by doing a
 357                          * timeout for 50 msecs.  If we receive
 358                          * dx=dy=dz=buttons=0 before we add the event
 359                          * to the queue.  In any other case we delete
 360                          * the timeout event.
 361                          */
 362                         if ((sc->sc_info[0].sc_flags & UMS_FLAG_SBU) &&
 363                             (dx == 0) && (dy == 0) && (dz == 0) && (dt == 0) &&
 364                             (dw == 0) && (buttons == 0)) {
 365
 366                                 usb_callout_reset(&sc->sc_callout, hz / 20,
 367                                     &ums_put_queue_timeout, sc);
 368                         } else {
 369
 370                                 usb_callout_stop(&sc->sc_callout);
 371
 372                                 ums_put_queue(sc, dx, dy, dz, dt, buttons);
 373 #ifdef EVDEV_SUPPORT
 374                                 ums_evdev_push(sc, dx, dy, dz, dt,
 375                                     buttons_reported);
 376 #endif
 377
 378                         }
 379                 }
 380         case USB_ST_SETUP:
 381 tr_setup:
 382                 /* check if we can put more data into the FIFO */
 383                 if (usb_fifo_put_bytes_max(sc->sc_fifo.fp[USB_FIFO_RX]) == 0) {
 384 #ifdef EVDEV_SUPPORT
 385                         if (sc->sc_evflags == 0)
 386                                 break;
 387 #else
 388                         break;
 389 #endif
 390                 }
 391
 392                 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
 393                 usbd_transfer_submit(xfer);
 394                 break;
 395
 396         default:                        /* Error */
 397                 if (error != USB_ERR_CANCELLED) {
 398                         /* try clear stall first */
 399                         usbd_xfer_set_stall(xfer);
 400                         goto tr_setup;
 401                 }
 402                 break;
 403         }
 404 }
 405
 406 static const struct usb_config ums_config[UMS_N_TRANSFER] = {
 407
 408         [UMS_INTR_DT] = {
 409                 .type = UE_INTERRUPT,
 410                 .endpoint = UE_ADDR_ANY,
 411                 .direction = UE_DIR_IN,
 412                 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
 413                 .bufsize = 0,   /* use wMaxPacketSize */
 414                 .callback = &ums_intr_callback,
 415         },
 416 };
 417
 418 /* A match on these entries will load ums */
 419 static const STRUCT_USB_HOST_ID __used ums_devs[] = {
 420         {USB_IFACE_CLASS(UICLASS_HID),
 421          USB_IFACE_SUBCLASS(UISUBCLASS_BOOT),
 422          USB_IFACE_PROTOCOL(UIPROTO_MOUSE),},
 423 };
 424
 425 static int
 426 ums_probe(device_t dev)
 427 {
 428         struct usb_attach_arg *uaa = device_get_ivars(dev);
 429         void *d_ptr;
 430         int error;
 431         uint16_t d_len;
 432
 433         DPRINTFN(11, "\n");
 434
 435         if (uaa->usb_mode != USB_MODE_HOST)
 436                 return (ENXIO);
 437
 438         if (uaa->info.bInterfaceClass != UICLASS_HID)
 439                 return (ENXIO);
 440
 441         if (usb_test_quirk(uaa, UQ_UMS_IGNORE))
 442                 return (ENXIO);
 443
 444         if ((uaa->info.bInterfaceSubClass == UISUBCLASS_BOOT) &&
 445             (uaa->info.bInterfaceProtocol == UIPROTO_MOUSE))
 446                 return (BUS_PROBE_DEFAULT);
 447
 448         error = usbd_req_get_hid_desc(uaa->device, NULL,
 449             &d_ptr, &d_len, M_TEMP, uaa->info.bIfaceIndex);
 450
 451         if (error)
 452                 return (ENXIO);
 453
 454         if (hid_is_mouse(d_ptr, d_len))
 455                 error = BUS_PROBE_DEFAULT;
 456         else
 457                 error = ENXIO;
 458
 459         free(d_ptr, M_TEMP);
 460         return (error);
 461 }
 462
 463 static void
 464 ums_hid_parse(struct ums_softc *sc, device_t dev, const uint8_t *buf,
 465     uint16_t len, uint8_t index)
 466 {
 467         struct ums_info *info = &sc->sc_info[index];
 468         uint32_t flags;
 469         uint8_t i;
 470         uint8_t j;
 471
 472         if (hid_locate(buf, len, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_X),
 473             hid_input, index, &info->sc_loc_x, &flags, &info->sc_iid_x)) {
 474
 475                 if ((flags & MOUSE_FLAGS_MASK) == MOUSE_FLAGS) {
 476                         info->sc_flags |= UMS_FLAG_X_AXIS;
 477                 }
 478         }
 479         if (hid_locate(buf, len, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_Y),
 480             hid_input, index, &info->sc_loc_y, &flags, &info->sc_iid_y)) {
 481
 482                 if ((flags & MOUSE_FLAGS_MASK) == MOUSE_FLAGS) {
 483                         info->sc_flags |= UMS_FLAG_Y_AXIS;
 484                 }
 485         }
 486         /* Try the wheel first as the Z activator since it's tradition. */
 487         if (hid_locate(buf, len, HID_USAGE2(HUP_GENERIC_DESKTOP,
 488             HUG_WHEEL), hid_input, index, &info->sc_loc_z, &flags,
 489             &info->sc_iid_z) ||
 490             hid_locate(buf, len, HID_USAGE2(HUP_GENERIC_DESKTOP,
 491             HUG_TWHEEL), hid_input, index, &info->sc_loc_z, &flags,
 492             &info->sc_iid_z)) {
 493                 if ((flags & MOUSE_FLAGS_MASK) == MOUSE_FLAGS) {
 494                         info->sc_flags |= UMS_FLAG_Z_AXIS;
 495                 }
 496                 /*
 497                  * We might have both a wheel and Z direction, if so put
 498                  * put the Z on the W coordinate.
 499                  */
 500                 if (hid_locate(buf, len, HID_USAGE2(HUP_GENERIC_DESKTOP,
 501                     HUG_Z), hid_input, index, &info->sc_loc_w, &flags,
 502                     &info->sc_iid_w)) {
 503
 504                         if ((flags & MOUSE_FLAGS_MASK) == MOUSE_FLAGS) {
 505                                 info->sc_flags |= UMS_FLAG_W_AXIS;
 506                         }
 507                 }
 508         } else if (hid_locate(buf, len, HID_USAGE2(HUP_GENERIC_DESKTOP,
 509             HUG_Z), hid_input, index, &info->sc_loc_z, &flags,
 510             &info->sc_iid_z)) {
 511
 512                 if ((flags & MOUSE_FLAGS_MASK) == MOUSE_FLAGS) {
 513                         info->sc_flags |= UMS_FLAG_Z_AXIS;
 514                 }
 515         }
 516         /*
 517          * The Microsoft Wireless Intellimouse 2.0 reports it's wheel
 518          * using 0x0048, which is HUG_TWHEEL, and seems to expect you
 519          * to know that the byte after the wheel is the tilt axis.
 520          * There are no other HID axis descriptors other than X,Y and
 521          * TWHEEL
 522          */
 523         if (hid_locate(buf, len, HID_USAGE2(HUP_GENERIC_DESKTOP,
 524             HUG_TWHEEL), hid_input, index, &info->sc_loc_t,
 525             &flags, &info->sc_iid_t)) {
 526
 527                 info->sc_loc_t.pos += 8;
 528
 529                 if ((flags & MOUSE_FLAGS_MASK) == MOUSE_FLAGS) {
 530                         info->sc_flags |= UMS_FLAG_T_AXIS;
 531                 }
 532         } else if (hid_locate(buf, len, HID_USAGE2(HUP_CONSUMER,
 533                 HUC_AC_PAN), hid_input, index, &info->sc_loc_t,
 534                 &flags, &info->sc_iid_t)) {
 535
 536                 if ((flags & MOUSE_FLAGS_MASK) == MOUSE_FLAGS)
 537                         info->sc_flags |= UMS_FLAG_T_AXIS;
 538         }
 539         /* figure out the number of buttons */
 540
 541         for (i = 0; i < UMS_BUTTON_MAX; i++) {
 542                 if (!hid_locate(buf, len, HID_USAGE2(HUP_BUTTON, (i + 1)),
 543                     hid_input, index, &info->sc_loc_btn[i], NULL,
 544                     &info->sc_iid_btn[i])) {
 545                         break;
 546                 }
 547         }
 548
 549         /* detect other buttons */
 550
 551         for (j = 0; (i < UMS_BUTTON_MAX) && (j < 2); i++, j++) {
 552                 if (!hid_locate(buf, len, HID_USAGE2(HUP_MICROSOFT, (j + 1)),
 553                     hid_input, index, &info->sc_loc_btn[i], NULL,
 554                     &info->sc_iid_btn[i])) {
 555                         break;
 556                 }
 557         }
 558
 559         info->sc_buttons = i;
 560
 561         if (i > sc->sc_buttons)
 562                 sc->sc_buttons = i;
 563
 564         if (info->sc_flags == 0)
 565                 return;
 566
 567         /* announce information about the mouse */
 568         device_printf(dev, "%d buttons and [%s%s%s%s%s] coordinates ID=%u\n",
 569             (info->sc_buttons),
 570             (info->sc_flags & UMS_FLAG_X_AXIS) ? "X" : "",
 571             (info->sc_flags & UMS_FLAG_Y_AXIS) ? "Y" : "",
 572             (info->sc_flags & UMS_FLAG_Z_AXIS) ? "Z" : "",
 573             (info->sc_flags & UMS_FLAG_T_AXIS) ? "T" : "",
 574             (info->sc_flags & UMS_FLAG_W_AXIS) ? "W" : "",
 575             info->sc_iid_x);
 576 }
 577
 578 static int
 579 ums_attach(device_t dev)
 580 {
 581         struct usb_attach_arg *uaa = device_get_ivars(dev);
 582         struct ums_softc *sc = device_get_softc(dev);
 583         struct ums_info *info;
 584         void *d_ptr = NULL;
 585         int isize;
 586         int err;
 587         uint16_t d_len;
 588         uint8_t i;
 589 #ifdef USB_DEBUG
 590         uint8_t j;
 591 #endif
 592
 593         DPRINTFN(11, "sc=%p\n", sc);
 594
 595         device_set_usb_desc(dev);
 596
 597         mtx_init(&sc->sc_mtx, "ums lock", NULL, MTX_DEF | MTX_RECURSE);
 598
 599         usb_callout_init_mtx(&sc->sc_callout, &sc->sc_mtx, 0);
 600
 601         /*
 602          * Force the report (non-boot) protocol.
 603          *
 604          * Mice without boot protocol support may choose not to implement
 605          * Set_Protocol at all; Ignore any error.
 606          */
 607         err = usbd_req_set_protocol(uaa->device, NULL,
 608             uaa->info.bIfaceIndex, 1);
 609
 610         err = usbd_transfer_setup(uaa->device,
 611             &uaa->info.bIfaceIndex, sc->sc_xfer, ums_config,
 612             UMS_N_TRANSFER, sc, &sc->sc_mtx);
 613
 614         if (err) {
 615                 DPRINTF("error=%s\n", usbd_errstr(err));
 616                 goto detach;
 617         }
 618
 619         /* Get HID descriptor */
 620         err = usbd_req_get_hid_desc(uaa->device, NULL, &d_ptr,
 621             &d_len, M_TEMP, uaa->info.bIfaceIndex);
 622
 623         if (err) {
 624                 device_printf(dev, "error reading report description\n");
 625                 goto detach;
 626         }
 627
 628         isize = hid_report_size(d_ptr, d_len, hid_input, &sc->sc_iid);
 629
 630         /*
 631          * The Microsoft Wireless Notebook Optical Mouse seems to be in worse
 632          * shape than the Wireless Intellimouse 2.0, as its X, Y, wheel, and
 633          * all of its other button positions are all off. It also reports that
 634          * it has two additional buttons and a tilt wheel.
 635          */
 636         if (usb_test_quirk(uaa, UQ_MS_BAD_CLASS)) {
 637
 638                 sc->sc_iid = 0;
 639
 640                 info = &sc->sc_info[0];
 641                 info->sc_flags = (UMS_FLAG_X_AXIS |
 642                     UMS_FLAG_Y_AXIS |
 643                     UMS_FLAG_Z_AXIS |
 644                     UMS_FLAG_SBU);
 645                 info->sc_buttons = 3;
 646                 isize = 5;
 647                 /* 1st byte of descriptor report contains garbage */
 648                 info->sc_loc_x.pos = 16;
 649                 info->sc_loc_x.size = 8;
 650                 info->sc_loc_y.pos = 24;
 651                 info->sc_loc_y.size = 8;
 652                 info->sc_loc_z.pos = 32;
 653                 info->sc_loc_z.size = 8;
 654                 info->sc_loc_btn[0].pos = 8;
 655                 info->sc_loc_btn[0].size = 1;
 656                 info->sc_loc_btn[1].pos = 9;
 657                 info->sc_loc_btn[1].size = 1;
 658                 info->sc_loc_btn[2].pos = 10;
 659                 info->sc_loc_btn[2].size = 1;
 660
 661                 /* Announce device */
 662                 device_printf(dev, "3 buttons and [XYZ] "
 663                     "coordinates ID=0\n");
 664
 665         } else {
 666                 /* Search the HID descriptor and announce device */
 667                 for (i = 0; i < UMS_INFO_MAX; i++) {
 668                         ums_hid_parse(sc, dev, d_ptr, d_len, i);
 669                 }
 670         }
 671
 672         if (usb_test_quirk(uaa, UQ_MS_REVZ)) {
 673                 info = &sc->sc_info[0];
 674                 /* Some wheels need the Z axis reversed. */
 675                 info->sc_flags |= UMS_FLAG_REVZ;
 676         }
 677         if (isize > (int)usbd_xfer_max_framelen(sc->sc_xfer[UMS_INTR_DT])) {
 678                 DPRINTF("WARNING: report size, %d bytes, is larger "
 679                     "than interrupt size, %d bytes!\n", isize,
 680                     usbd_xfer_max_framelen(sc->sc_xfer[UMS_INTR_DT]));
 681         }
 682         free(d_ptr, M_TEMP);
 683         d_ptr = NULL;
 684
 685 #ifdef USB_DEBUG
 686         for (j = 0; j < UMS_INFO_MAX; j++) {
 687                 info = &sc->sc_info[j];
 688
 689                 DPRINTF("sc=%p, index=%d\n", sc, j);
 690                 DPRINTF("X\t%d/%d id=%d\n", info->sc_loc_x.pos,
 691                     info->sc_loc_x.size, info->sc_iid_x);
 692                 DPRINTF("Y\t%d/%d id=%d\n", info->sc_loc_y.pos,
 693                     info->sc_loc_y.size, info->sc_iid_y);
 694                 DPRINTF("Z\t%d/%d id=%d\n", info->sc_loc_z.pos,
 695                     info->sc_loc_z.size, info->sc_iid_z);
 696                 DPRINTF("T\t%d/%d id=%d\n", info->sc_loc_t.pos,
 697                     info->sc_loc_t.size, info->sc_iid_t);
 698                 DPRINTF("W\t%d/%d id=%d\n", info->sc_loc_w.pos,
 699                     info->sc_loc_w.size, info->sc_iid_w);
 700
 701                 for (i = 0; i < info->sc_buttons; i++) {
 702                         DPRINTF("B%d\t%d/%d id=%d\n",
 703                             i + 1, info->sc_loc_btn[i].pos,
 704                             info->sc_loc_btn[i].size, info->sc_iid_btn[i]);
 705                 }
 706         }
 707         DPRINTF("size=%d, id=%d\n", isize, sc->sc_iid);
 708 #endif
 709
 710         err = usb_fifo_attach(uaa->device, sc, &sc->sc_mtx,
 711             &ums_fifo_methods, &sc->sc_fifo,
 712             device_get_unit(dev), -1, uaa->info.bIfaceIndex,
 713             UID_ROOT, GID_OPERATOR, 0644);
 714         if (err)
 715                 goto detach;
 716
 717 #ifdef EVDEV_SUPPORT
 718         sc->sc_evdev = evdev_alloc();
 719         evdev_set_name(sc->sc_evdev, device_get_desc(dev));
 720         evdev_set_phys(sc->sc_evdev, device_get_nameunit(dev));
 721         evdev_set_id(sc->sc_evdev, BUS_USB, uaa->info.idVendor,
 722             uaa->info.idProduct, 0);
 723         evdev_set_serial(sc->sc_evdev, usb_get_serial(uaa->device));
 724         evdev_set_methods(sc->sc_evdev, sc, &ums_evdev_methods);
 725         evdev_support_prop(sc->sc_evdev, INPUT_PROP_POINTER);
 726         evdev_support_event(sc->sc_evdev, EV_SYN);
 727         evdev_support_event(sc->sc_evdev, EV_REL);
 728         evdev_support_event(sc->sc_evdev, EV_KEY);
 729
 730         info = &sc->sc_info[0];
 731
 732         if (info->sc_flags & UMS_FLAG_X_AXIS)
 733                 evdev_support_rel(sc->sc_evdev, REL_X);
 734
 735         if (info->sc_flags & UMS_FLAG_Y_AXIS)
 736                 evdev_support_rel(sc->sc_evdev, REL_Y);
 737
 738         if (info->sc_flags & UMS_FLAG_Z_AXIS)
 739                 evdev_support_rel(sc->sc_evdev, REL_WHEEL);
 740
 741         if (info->sc_flags & UMS_FLAG_T_AXIS)
 742                 evdev_support_rel(sc->sc_evdev, REL_HWHEEL);
 743
 744         for (i = 0; i < info->sc_buttons; i++)
 745                 evdev_support_key(sc->sc_evdev, BTN_MOUSE + i);
 746
 747         err = evdev_register_mtx(sc->sc_evdev, &sc->sc_mtx);
 748         if (err)
 749                 goto detach;
 750 #endif
 751
 752         SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
 753             SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 754             OID_AUTO, "parseinfo",
 755             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE,
 756             sc, 0, ums_sysctl_handler_parseinfo, "",
 757             "Dump of parsed HID report descriptor");
 758
 759         return (0);
 760
 761 detach:
 762         if (d_ptr) {
 763                 free(d_ptr, M_TEMP);
 764         }
 765         ums_detach(dev);
 766         return (ENOMEM);
 767 }
 768
 769 static int
 770 ums_detach(device_t self)
 771 {
 772         struct ums_softc *sc = device_get_softc(self);
 773
 774         DPRINTF("sc=%p\n", sc);
 775
 776         usb_fifo_detach(&sc->sc_fifo);
 777
 778 #ifdef EVDEV_SUPPORT
 779         evdev_free(sc->sc_evdev);
 780 #endif
 781
 782         usbd_transfer_unsetup(sc->sc_xfer, UMS_N_TRANSFER);
 783
 784         usb_callout_drain(&sc->sc_callout);
 785
 786         mtx_destroy(&sc->sc_mtx);
 787
 788         return (0);
 789 }
 790
 791 static void
 792 ums_reset(struct ums_softc *sc)
 793 {
 794
 795         /* reset all USB mouse parameters */
 796
 797         if (sc->sc_buttons > MOUSE_MSC_MAXBUTTON)
 798                 sc->sc_hw.buttons = MOUSE_MSC_MAXBUTTON;
 799         else
 800                 sc->sc_hw.buttons = sc->sc_buttons;
 801
 802         sc->sc_hw.iftype = MOUSE_IF_USB;
 803         sc->sc_hw.type = MOUSE_MOUSE;
 804         sc->sc_hw.model = MOUSE_MODEL_GENERIC;
 805         sc->sc_hw.hwid = 0;
 806
 807         sc->sc_mode.protocol = MOUSE_PROTO_MSC;
 808         sc->sc_mode.rate = -1;
 809         sc->sc_mode.resolution = MOUSE_RES_UNKNOWN;
 810         sc->sc_mode.accelfactor = 0;
 811         sc->sc_mode.level = 0;
 812         sc->sc_mode.packetsize = MOUSE_MSC_PACKETSIZE;
 813         sc->sc_mode.syncmask[0] = MOUSE_MSC_SYNCMASK;
 814         sc->sc_mode.syncmask[1] = MOUSE_MSC_SYNC;
 815
 816         /* reset status */
 817
 818         sc->sc_status.flags = 0;
 819         sc->sc_status.button = 0;
 820         sc->sc_status.obutton = 0;
 821         sc->sc_status.dx = 0;
 822         sc->sc_status.dy = 0;
 823         sc->sc_status.dz = 0;
 824         /* sc->sc_status.dt = 0; */
 825 }
 826
 827 static void
 828 ums_start_rx(struct ums_softc *sc)
 829 {
 830         int rate;
 831
 832         /* Check if we should override the default polling interval */
 833         rate = sc->sc_pollrate;
 834         /* Range check rate */
 835         if (rate > 1000)
 836                 rate = 1000;
 837         /* Check for set rate */
 838         if ((rate > 0) && (sc->sc_xfer[UMS_INTR_DT] != NULL)) {
 839                 DPRINTF("Setting pollrate = %d\n", rate);
 840                 /* Stop current transfer, if any */
 841                 usbd_transfer_stop(sc->sc_xfer[UMS_INTR_DT]);
 842                 /* Set new interval */
 843                 usbd_xfer_set_interval(sc->sc_xfer[UMS_INTR_DT], 1000 / rate);
 844                 /* Only set pollrate once */
 845                 sc->sc_pollrate = 0;
 846         }
 847
 848         usbd_transfer_start(sc->sc_xfer[UMS_INTR_DT]);
 849 }
 850
 851 static void
 852 ums_stop_rx(struct ums_softc *sc)
 853 {
 854         usbd_transfer_stop(sc->sc_xfer[UMS_INTR_DT]);
 855         usb_callout_stop(&sc->sc_callout);
 856 }
 857
 858 static void
 859 ums_fifo_start_read(struct usb_fifo *fifo)
 860 {
 861         struct ums_softc *sc = usb_fifo_softc(fifo);
 862
 863         ums_start_rx(sc);
 864 }
 865
 866 static void
 867 ums_fifo_stop_read(struct usb_fifo *fifo)
 868 {
 869         struct ums_softc *sc = usb_fifo_softc(fifo);
 870
 871         ums_stop_rx(sc);
 872 }
 873
 874
 875 #if ((MOUSE_SYS_PACKETSIZE != 8) || \
 876      (MOUSE_MSC_PACKETSIZE != 5))
 877 #error "Software assumptions are not met. Please update code."
 878 #endif
 879
 880 static void
 881 ums_put_queue(struct ums_softc *sc, int32_t dx, int32_t dy,
 882     int32_t dz, int32_t dt, int32_t buttons)
 883 {
 884         uint8_t buf[8];
 885
 886         if (1) {
 887
 888                 if (dx > 254)
 889                         dx = 254;
 890                 if (dx < -256)
 891                         dx = -256;
 892                 if (dy > 254)
 893                         dy = 254;
 894                 if (dy < -256)
 895                         dy = -256;
 896                 if (dz > 126)
 897                         dz = 126;
 898                 if (dz < -128)
 899                         dz = -128;
 900                 if (dt > 126)
 901                         dt = 126;
 902                 if (dt < -128)
 903                         dt = -128;
 904
 905                 buf[0] = sc->sc_mode.syncmask[1];
 906                 buf[0] |= (~buttons) & MOUSE_MSC_BUTTONS;
 907                 buf[1] = dx >> 1;
 908                 buf[2] = dy >> 1;
 909                 buf[3] = dx - (dx >> 1);
 910                 buf[4] = dy - (dy >> 1);
 911
 912                 if (sc->sc_mode.level == 1) {
 913                         buf[5] = dz >> 1;
 914                         buf[6] = dz - (dz >> 1);
 915                         buf[7] = (((~buttons) >> 3) & MOUSE_SYS_EXTBUTTONS);
 916                 }
 917                 usb_fifo_put_data_linear(sc->sc_fifo.fp[USB_FIFO_RX], buf,
 918                     sc->sc_mode.packetsize, 1);
 919         } else {
 920                 DPRINTF("Buffer full, discarded packet\n");
 921         }
 922 }
 923
 924 #ifdef EVDEV_SUPPORT
 925 static void
 926 ums_evdev_push(struct ums_softc *sc, int32_t dx, int32_t dy,
 927     int32_t dz, int32_t dt, int32_t buttons)
 928 {
 929         if (evdev_rcpt_mask & EVDEV_RCPT_HW_MOUSE) {
 930                 /* Push evdev event */
 931                 evdev_push_rel(sc->sc_evdev, REL_X, dx);
 932                 evdev_push_rel(sc->sc_evdev, REL_Y, -dy);
 933                 evdev_push_rel(sc->sc_evdev, REL_WHEEL, -dz);
 934                 evdev_push_rel(sc->sc_evdev, REL_HWHEEL, dt);
 935                 evdev_push_mouse_btn(sc->sc_evdev,
 936                     (buttons & ~MOUSE_STDBUTTONS) |
 937                     (buttons & (1 << 2) ? MOUSE_BUTTON1DOWN : 0) |
 938                     (buttons & (1 << 1) ? MOUSE_BUTTON2DOWN : 0) |
 939                     (buttons & (1 << 0) ? MOUSE_BUTTON3DOWN : 0));
 940                 evdev_sync(sc->sc_evdev);
 941         }
 942 }
 943 #endif
 944
 945 static void
 946 ums_reset_buf(struct ums_softc *sc)
 947 {
 948         /* reset read queue, must be called locked */
 949         usb_fifo_reset(sc->sc_fifo.fp[USB_FIFO_RX]);
 950 }
 951
 952 #ifdef EVDEV_SUPPORT
 953 static int
 954 ums_ev_open(struct evdev_dev *evdev)
 955 {
 956         struct ums_softc *sc = evdev_get_softc(evdev);
 957
 958         mtx_assert(&sc->sc_mtx, MA_OWNED);
 959
 960         sc->sc_evflags = UMS_EVDEV_OPENED;
 961
 962         if (sc->sc_fflags == 0) {
 963                 ums_reset(sc);
 964                 ums_start_rx(sc);
 965         }
 966
 967         return (0);
 968 }
 969
 970 static int
 971 ums_ev_close(struct evdev_dev *evdev)
 972 {
 973         struct ums_softc *sc = evdev_get_softc(evdev);
 974
 975         mtx_assert(&sc->sc_mtx, MA_OWNED);
 976
 977         sc->sc_evflags = 0;
 978
 979         if (sc->sc_fflags == 0)
 980                 ums_stop_rx(sc);
 981
 982         return (0);
 983 }
 984 #endif
 985
 986 static int
 987 ums_fifo_open(struct usb_fifo *fifo, int fflags)
 988 {
 989         struct ums_softc *sc = usb_fifo_softc(fifo);
 990
 991         DPRINTFN(2, "\n");
 992
 993         /* check for duplicate open, should not happen */
 994         if (sc->sc_fflags & fflags)
 995                 return (EBUSY);
 996
 997         /* check for first open */
 998 #ifdef EVDEV_SUPPORT
 999         if (sc->sc_fflags == 0 && sc->sc_evflags == 0)
1000                 ums_reset(sc);
1001 #else
1002         if (sc->sc_fflags == 0)
1003                 ums_reset(sc);
1004 #endif
1005
1006         if (fflags & FREAD) {
1007                 /* allocate RX buffer */
1008                 if (usb_fifo_alloc_buffer(fifo,
1009                     UMS_BUF_SIZE, UMS_IFQ_MAXLEN)) {
1010                         return (ENOMEM);
1011                 }
1012         }
1013
1014         sc->sc_fflags |= fflags & (FREAD | FWRITE);
1015         return (0);
1016 }
1017
1018 static void
1019 ums_fifo_close(struct usb_fifo *fifo, int fflags)
1020 {
1021         struct ums_softc *sc = usb_fifo_softc(fifo);
1022
1023         DPRINTFN(2, "\n");
1024
1025         if (fflags & FREAD)
1026                 usb_fifo_free_buffer(fifo);
1027
1028         sc->sc_fflags &= ~(fflags & (FREAD | FWRITE));
1029 }
1030
1031 static int
1032 ums_fifo_ioctl(struct usb_fifo *fifo, u_long cmd, void *addr, int fflags)
1033 {
1034         struct ums_softc *sc = usb_fifo_softc(fifo);
1035         mousemode_t mode;
1036         int error = 0;
1037
1038         DPRINTFN(2, "\n");
1039
1040         mtx_lock(&sc->sc_mtx);
1041
1042         switch (cmd) {
1043         case MOUSE_GETHWINFO:
1044                 *(mousehw_t *)addr = sc->sc_hw;
1045                 break;
1046
1047         case MOUSE_GETMODE:
1048                 *(mousemode_t *)addr = sc->sc_mode;
1049                 break;
1050
1051         case MOUSE_SETMODE:
1052                 mode = *(mousemode_t *)addr;
1053
1054                 if (mode.level == -1) {
1055                         /* don't change the current setting */
1056                 } else if ((mode.level < 0) || (mode.level > 1)) {
1057                         error = EINVAL;
1058                         break;
1059                 } else {
1060                         sc->sc_mode.level = mode.level;
1061                 }
1062
1063                 /* store polling rate */
1064                 sc->sc_pollrate = mode.rate;
1065
1066                 if (sc->sc_mode.level == 0) {
1067                         if (sc->sc_buttons > MOUSE_MSC_MAXBUTTON)
1068                                 sc->sc_hw.buttons = MOUSE_MSC_MAXBUTTON;
1069                         else
1070                                 sc->sc_hw.buttons = sc->sc_buttons;
1071                         sc->sc_mode.protocol = MOUSE_PROTO_MSC;
1072                         sc->sc_mode.packetsize = MOUSE_MSC_PACKETSIZE;
1073                         sc->sc_mode.syncmask[0] = MOUSE_MSC_SYNCMASK;
1074                         sc->sc_mode.syncmask[1] = MOUSE_MSC_SYNC;
1075                 } else if (sc->sc_mode.level == 1) {
1076                         if (sc->sc_buttons > MOUSE_SYS_MAXBUTTON)
1077                                 sc->sc_hw.buttons = MOUSE_SYS_MAXBUTTON;
1078                         else
1079                                 sc->sc_hw.buttons = sc->sc_buttons;
1080                         sc->sc_mode.protocol = MOUSE_PROTO_SYSMOUSE;
1081                         sc->sc_mode.packetsize = MOUSE_SYS_PACKETSIZE;
1082                         sc->sc_mode.syncmask[0] = MOUSE_SYS_SYNCMASK;
1083                         sc->sc_mode.syncmask[1] = MOUSE_SYS_SYNC;
1084                 }
1085                 ums_reset_buf(sc);
1086                 break;
1087
1088         case MOUSE_GETLEVEL:
1089                 *(int *)addr = sc->sc_mode.level;
1090                 break;
1091
1092         case MOUSE_SETLEVEL:
1093                 if (*(int *)addr < 0 || *(int *)addr > 1) {
1094                         error = EINVAL;
1095                         break;
1096                 }
1097                 sc->sc_mode.level = *(int *)addr;
1098
1099                 if (sc->sc_mode.level == 0) {
1100                         if (sc->sc_buttons > MOUSE_MSC_MAXBUTTON)
1101                                 sc->sc_hw.buttons = MOUSE_MSC_MAXBUTTON;
1102                         else
1103                                 sc->sc_hw.buttons = sc->sc_buttons;
1104                         sc->sc_mode.protocol = MOUSE_PROTO_MSC;
1105                         sc->sc_mode.packetsize = MOUSE_MSC_PACKETSIZE;
1106                         sc->sc_mode.syncmask[0] = MOUSE_MSC_SYNCMASK;
1107                         sc->sc_mode.syncmask[1] = MOUSE_MSC_SYNC;
1108                 } else if (sc->sc_mode.level == 1) {
1109                         if (sc->sc_buttons > MOUSE_SYS_MAXBUTTON)
1110                                 sc->sc_hw.buttons = MOUSE_SYS_MAXBUTTON;
1111                         else
1112                                 sc->sc_hw.buttons = sc->sc_buttons;
1113                         sc->sc_mode.protocol = MOUSE_PROTO_SYSMOUSE;
1114                         sc->sc_mode.packetsize = MOUSE_SYS_PACKETSIZE;
1115                         sc->sc_mode.syncmask[0] = MOUSE_SYS_SYNCMASK;
1116                         sc->sc_mode.syncmask[1] = MOUSE_SYS_SYNC;
1117                 }
1118                 ums_reset_buf(sc);
1119                 break;
1120
1121         case MOUSE_GETSTATUS:{
1122                         mousestatus_t *status = (mousestatus_t *)addr;
1123
1124                         *status = sc->sc_status;
1125                         sc->sc_status.obutton = sc->sc_status.button;
1126                         sc->sc_status.button = 0;
1127                         sc->sc_status.dx = 0;
1128                         sc->sc_status.dy = 0;
1129                         sc->sc_status.dz = 0;
1130                         /* sc->sc_status.dt = 0; */
1131
1132                         if (status->dx || status->dy || status->dz /* || status->dt */ ) {
1133                                 status->flags |= MOUSE_POSCHANGED;
1134                         }
1135                         if (status->button != status->obutton) {
1136                                 status->flags |= MOUSE_BUTTONSCHANGED;
1137                         }
1138                         break;
1139                 }
1140         default:
1141                 error = ENOTTY;
1142                 break;
1143         }
1144
1145         mtx_unlock(&sc->sc_mtx);
1146         return (error);
1147 }
1148
1149 static int
1150 ums_sysctl_handler_parseinfo(SYSCTL_HANDLER_ARGS)
1151 {
1152         struct ums_softc *sc = arg1;
1153         struct ums_info *info;
1154         struct sbuf *sb;
1155         int i, j, err, had_output;
1156
1157         sb = sbuf_new_auto();
1158         for (i = 0, had_output = 0; i < UMS_INFO_MAX; i++) {
1159                 info = &sc->sc_info[i];
1160
1161                 /* Don't emit empty info */
1162                 if ((info->sc_flags &
1163                     (UMS_FLAG_X_AXIS | UMS_FLAG_Y_AXIS | UMS_FLAG_Z_AXIS |
1164                      UMS_FLAG_T_AXIS | UMS_FLAG_W_AXIS)) == 0 &&
1165                     info->sc_buttons == 0)
1166                         continue;
1167
1168                 if (had_output)
1169                         sbuf_printf(sb, "\n");
1170                 had_output = 1;
1171                 sbuf_printf(sb, "i%d:", i + 1);
1172                 if (info->sc_flags & UMS_FLAG_X_AXIS)
1173                         sbuf_printf(sb, " X:r%d, p%d, s%d;",
1174                             (int)info->sc_iid_x,
1175                             (int)info->sc_loc_x.pos,
1176                             (int)info->sc_loc_x.size);
1177                 if (info->sc_flags & UMS_FLAG_Y_AXIS)
1178                         sbuf_printf(sb, " Y:r%d, p%d, s%d;",
1179                             (int)info->sc_iid_y,
1180                             (int)info->sc_loc_y.pos,
1181                             (int)info->sc_loc_y.size);
1182                 if (info->sc_flags & UMS_FLAG_Z_AXIS)
1183                         sbuf_printf(sb, " Z:r%d, p%d, s%d;",
1184                             (int)info->sc_iid_z,
1185                             (int)info->sc_loc_z.pos,
1186                             (int)info->sc_loc_z.size);
1187                 if (info->sc_flags & UMS_FLAG_T_AXIS)
1188                         sbuf_printf(sb, " T:r%d, p%d, s%d;",
1189                             (int)info->sc_iid_t,
1190                             (int)info->sc_loc_t.pos,
1191                             (int)info->sc_loc_t.size);
1192                 if (info->sc_flags & UMS_FLAG_W_AXIS)
1193                         sbuf_printf(sb, " W:r%d, p%d, s%d;",
1194                             (int)info->sc_iid_w,
1195                             (int)info->sc_loc_w.pos,
1196                             (int)info->sc_loc_w.size);
1197
1198                 for (j = 0; j < info->sc_buttons; j++) {
1199                         sbuf_printf(sb, " B%d:r%d, p%d, s%d;", j + 1,
1200                             (int)info->sc_iid_btn[j],
1201                             (int)info->sc_loc_btn[j].pos,
1202                             (int)info->sc_loc_btn[j].size);
1203                 }
1204         }
1205         sbuf_finish(sb);
1206         err = SYSCTL_OUT(req, sbuf_data(sb), sbuf_len(sb) + 1);
1207         sbuf_delete(sb);
1208
1209         return (err);
1210 }
1211
1212 static devclass_t ums_devclass;
1213
1214 static device_method_t ums_methods[] = {
1215         DEVMETHOD(device_probe, ums_probe),
1216         DEVMETHOD(device_attach, ums_attach),
1217         DEVMETHOD(device_detach, ums_detach),
1218
1219         DEVMETHOD_END
1220 };
1221
1222 static driver_t ums_driver = {
1223         .name = "ums",
1224         .methods = ums_methods,
1225         .size = sizeof(struct ums_softc),
1226 };
1227
1228 DRIVER_MODULE(ums, uhub, ums_driver, ums_devclass, NULL, 0);
1229 MODULE_DEPEND(ums, usb, 1, 1, 1);
1230 #ifdef EVDEV_SUPPORT
1231 MODULE_DEPEND(ums, evdev, 1, 1, 1);
1232 #endif
1233 MODULE_VERSION(ums, 1);
1234 USB_PNP_HOST_INFO(ums_devs);