The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/dev/usb/input/wsp.c

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2012 Huang Wen Hui
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  *
   16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   26  * SUCH DAMAGE.
   27  */
   28 
   29 #include <sys/cdefs.h>
   30 __FBSDID("$FreeBSD$");
   31 
   32 #include "opt_evdev.h"
   33 
   34 #include <sys/param.h>
   35 #include <sys/systm.h>
   36 #include <sys/kernel.h>
   37 #include <sys/malloc.h>
   38 #include <sys/module.h>
   39 #include <sys/lock.h>
   40 #include <sys/mutex.h>
   41 #include <sys/bus.h>
   42 #include <sys/conf.h>
   43 #include <sys/fcntl.h>
   44 #include <sys/file.h>
   45 #include <sys/selinfo.h>
   46 #include <sys/poll.h>
   47 #include <sys/sysctl.h>
   48 
   49 #include <dev/hid/hid.h>
   50 
   51 #include <dev/usb/usb.h>
   52 #include <dev/usb/usbdi.h>
   53 #include <dev/usb/usbdi_util.h>
   54 #include <dev/usb/usbhid.h>
   55 
   56 #include "usbdevs.h"
   57 
   58 #define USB_DEBUG_VAR wsp_debug
   59 #include <dev/usb/usb_debug.h>
   60 
   61 #ifdef EVDEV_SUPPORT
   62 #include <dev/evdev/input.h>
   63 #include <dev/evdev/evdev.h>
   64 #endif
   65 
   66 #include <sys/mouse.h>
   67 
   68 #define WSP_DRIVER_NAME "wsp"
   69 #define WSP_BUFFER_MAX  1024
   70 
   71 #define WSP_CLAMP(x,low,high) do {              \
   72         if ((x) < (low))                        \
   73                 (x) = (low);                    \
   74         else if ((x) > (high))                  \
   75                 (x) = (high);                   \
   76 } while (0)
   77 
   78 /* Tunables */
   79 static  SYSCTL_NODE(_hw_usb, OID_AUTO, wsp, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
   80     "USB wsp");
   81 
   82 #ifdef USB_DEBUG
   83 enum wsp_log_level {
   84         WSP_LLEVEL_DISABLED = 0,
   85         WSP_LLEVEL_ERROR,
   86         WSP_LLEVEL_DEBUG,               /* for troubleshooting */
   87         WSP_LLEVEL_INFO,                /* for diagnostics */
   88 };
   89 static int wsp_debug = WSP_LLEVEL_ERROR;/* the default is to only log errors */
   90 
   91 SYSCTL_INT(_hw_usb_wsp, OID_AUTO, debug, CTLFLAG_RWTUN,
   92     &wsp_debug, WSP_LLEVEL_ERROR, "WSP debug level");
   93 #endif                                  /* USB_DEBUG */
   94 
   95 static struct wsp_tuning {
   96         int     scale_factor;
   97         int     z_factor;
   98         int     z_invert;
   99         int     pressure_touch_threshold;
  100         int     pressure_untouch_threshold;
  101         int     pressure_tap_threshold;
  102         int     scr_hor_threshold;
  103         int     enable_single_tap_clicks;
  104 }
  105         wsp_tuning =
  106 {
  107         .scale_factor = 12,
  108         .z_factor = 5,
  109         .z_invert = 0,
  110         .pressure_touch_threshold = 50,
  111         .pressure_untouch_threshold = 10,
  112         .pressure_tap_threshold = 120,
  113         .scr_hor_threshold = 20,
  114         .enable_single_tap_clicks = 1,
  115 };
  116 
  117 static void
  118 wsp_runing_rangecheck(struct wsp_tuning *ptun)
  119 {
  120         WSP_CLAMP(ptun->scale_factor, 1, 63);
  121         WSP_CLAMP(ptun->z_factor, 1, 63);
  122         WSP_CLAMP(ptun->z_invert, 0, 1);
  123         WSP_CLAMP(ptun->pressure_touch_threshold, 1, 255);
  124         WSP_CLAMP(ptun->pressure_untouch_threshold, 1, 255);
  125         WSP_CLAMP(ptun->pressure_tap_threshold, 1, 255);
  126         WSP_CLAMP(ptun->scr_hor_threshold, 1, 255);
  127         WSP_CLAMP(ptun->enable_single_tap_clicks, 0, 1);
  128 }
  129 
  130 SYSCTL_INT(_hw_usb_wsp, OID_AUTO, scale_factor, CTLFLAG_RWTUN,
  131     &wsp_tuning.scale_factor, 0, "movement scale factor");
  132 SYSCTL_INT(_hw_usb_wsp, OID_AUTO, z_factor, CTLFLAG_RWTUN,
  133     &wsp_tuning.z_factor, 0, "Z-axis scale factor");
  134 SYSCTL_INT(_hw_usb_wsp, OID_AUTO, z_invert, CTLFLAG_RWTUN,
  135     &wsp_tuning.z_invert, 0, "enable Z-axis inversion");
  136 SYSCTL_INT(_hw_usb_wsp, OID_AUTO, pressure_touch_threshold, CTLFLAG_RWTUN,
  137     &wsp_tuning.pressure_touch_threshold, 0, "touch pressure threshold");
  138 SYSCTL_INT(_hw_usb_wsp, OID_AUTO, pressure_untouch_threshold, CTLFLAG_RWTUN,
  139     &wsp_tuning.pressure_untouch_threshold, 0, "untouch pressure threshold");
  140 SYSCTL_INT(_hw_usb_wsp, OID_AUTO, pressure_tap_threshold, CTLFLAG_RWTUN,
  141     &wsp_tuning.pressure_tap_threshold, 0, "tap pressure threshold");
  142 SYSCTL_INT(_hw_usb_wsp, OID_AUTO, scr_hor_threshold, CTLFLAG_RWTUN,
  143     &wsp_tuning.scr_hor_threshold, 0, "horizontal scrolling threshold");
  144 SYSCTL_INT(_hw_usb_wsp, OID_AUTO, enable_single_tap_clicks, CTLFLAG_RWTUN,
  145     &wsp_tuning.enable_single_tap_clicks, 0, "enable single tap clicks");
  146 
  147 /*
  148  * Some tables, structures, definitions and constant values for the
  149  * touchpad protocol has been copied from Linux's
  150  * "drivers/input/mouse/bcm5974.c" which has the following copyright
  151  * holders under GPLv2. All device specific code in this driver has
  152  * been written from scratch. The decoding algorithm is based on
  153  * output from FreeBSD's usbdump.
  154  *
  155  * Copyright (C) 2008      Henrik Rydberg (rydberg@euromail.se)
  156  * Copyright (C) 2008      Scott Shawcroft (scott.shawcroft@gmail.com)
  157  * Copyright (C) 2001-2004 Greg Kroah-Hartman (greg@kroah.com)
  158  * Copyright (C) 2005      Johannes Berg (johannes@sipsolutions.net)
  159  * Copyright (C) 2005      Stelian Pop (stelian@popies.net)
  160  * Copyright (C) 2005      Frank Arnold (frank@scirocco-5v-turbo.de)
  161  * Copyright (C) 2005      Peter Osterlund (petero2@telia.com)
  162  * Copyright (C) 2005      Michael Hanselmann (linux-kernel@hansmi.ch)
  163  * Copyright (C) 2006      Nicolas Boichat (nicolas@boichat.ch)
  164  */
  165 
  166 /* button data structure */
  167 struct bt_data {
  168         uint8_t unknown1;               /* constant */
  169         uint8_t button;                 /* left button */
  170         uint8_t rel_x;                  /* relative x coordinate */
  171         uint8_t rel_y;                  /* relative y coordinate */
  172 } __packed;
  173 
  174 /* trackpad header types */
  175 enum tp_type {
  176         TYPE1,                  /* plain trackpad */
  177         TYPE2,                  /* button integrated in trackpad */
  178         TYPE3,                  /* additional header fields since June 2013 */
  179         TYPE4,                  /* additional header field for pressure data */
  180         TYPE_CNT
  181 };
  182 
  183 /* trackpad finger data offsets, le16-aligned */
  184 #define FINGER_TYPE1            (13 * 2)
  185 #define FINGER_TYPE2            (15 * 2)
  186 #define FINGER_TYPE3            (19 * 2)
  187 #define FINGER_TYPE4            (23 * 2)
  188 
  189 /* trackpad button data offsets */
  190 #define BUTTON_TYPE2            15
  191 #define BUTTON_TYPE3            23
  192 #define BUTTON_TYPE4            31
  193 
  194 /* list of device capability bits */
  195 #define HAS_INTEGRATED_BUTTON   1
  196 
  197 /* trackpad finger data block size */
  198 #define FSIZE_TYPE1             (14 * 2)
  199 #define FSIZE_TYPE2             (14 * 2)
  200 #define FSIZE_TYPE3             (14 * 2)
  201 #define FSIZE_TYPE4             (15 * 2)
  202 
  203 struct wsp_tp {
  204         uint8_t caps;                   /* device capability bitmask */
  205         uint8_t button;                 /* offset to button data */
  206         uint8_t offset;                 /* offset to trackpad finger data */
  207         uint8_t fsize;                  /* bytes in single finger block */
  208         uint8_t delta;                  /* offset from header to finger struct */
  209         uint8_t iface_index;
  210         uint8_t um_size;                /* usb control message length */
  211         uint8_t um_req_idx;             /* usb control message index */
  212         uint8_t um_switch_idx;          /* usb control message mode switch index */
  213         uint8_t um_switch_on;           /* usb control message mode switch on */
  214         uint8_t um_switch_off;          /* usb control message mode switch off */
  215 } const static wsp_tp[TYPE_CNT] = {
  216         [TYPE1] = {
  217                 .caps = 0,
  218                 .button = 0,
  219                 .offset = FINGER_TYPE1,
  220                 .fsize = FSIZE_TYPE1,
  221                 .delta = 0,
  222                 .iface_index = 0,
  223                 .um_size = 8,
  224                 .um_req_idx = 0x00,
  225                 .um_switch_idx = 0,
  226                 .um_switch_on = 0x01,
  227                 .um_switch_off = 0x08,
  228         },
  229         [TYPE2] = {
  230                 .caps = HAS_INTEGRATED_BUTTON,
  231                 .button = BUTTON_TYPE2,
  232                 .offset = FINGER_TYPE2,
  233                 .fsize = FSIZE_TYPE2,
  234                 .delta = 0,
  235                 .iface_index = 0,
  236                 .um_size = 8,
  237                 .um_req_idx = 0x00,
  238                 .um_switch_idx = 0,
  239                 .um_switch_on = 0x01,
  240                 .um_switch_off = 0x08,
  241         },
  242         [TYPE3] = {
  243                 .caps = HAS_INTEGRATED_BUTTON,
  244                 .button = BUTTON_TYPE3,
  245                 .offset = FINGER_TYPE3,
  246                 .fsize = FSIZE_TYPE3,
  247                 .delta = 0,
  248         },
  249         [TYPE4] = {
  250                 .caps = HAS_INTEGRATED_BUTTON,
  251                 .button = BUTTON_TYPE4,
  252                 .offset = FINGER_TYPE4,
  253                 .fsize = FSIZE_TYPE4,
  254                 .delta = 2,
  255                 .iface_index = 2,
  256                 .um_size = 2,
  257                 .um_req_idx = 0x02,
  258                 .um_switch_idx = 1,
  259                 .um_switch_on = 0x01,
  260                 .um_switch_off = 0x00,
  261         },
  262 };
  263 
  264 /* trackpad finger header - little endian */
  265 struct tp_header {
  266         uint8_t flag;
  267         uint8_t sn0;
  268         uint16_t wFixed0;
  269         uint32_t dwSn1;
  270         uint32_t dwFixed1;
  271         uint16_t wLength;
  272         uint8_t nfinger;
  273         uint8_t ibt;
  274         int16_t wUnknown[6];
  275         uint8_t q1;
  276         uint8_t q2;
  277 } __packed;
  278 
  279 /* trackpad finger structure - little endian */
  280 struct tp_finger {
  281         int16_t origin;                 /* zero when switching track finger */
  282         int16_t abs_x;                  /* absolute x coodinate */
  283         int16_t abs_y;                  /* absolute y coodinate */
  284         int16_t rel_x;                  /* relative x coodinate */
  285         int16_t rel_y;                  /* relative y coodinate */
  286         int16_t tool_major;             /* tool area, major axis */
  287         int16_t tool_minor;             /* tool area, minor axis */
  288         int16_t orientation;            /* 16384 when point, else 15 bit angle */
  289         int16_t touch_major;            /* touch area, major axis */
  290         int16_t touch_minor;            /* touch area, minor axis */
  291         int16_t unused[2];              /* zeros */
  292         int16_t pressure;               /* pressure on forcetouch touchpad */
  293         int16_t multi;                  /* one finger: varies, more fingers:
  294                                          * constant */
  295 } __packed;
  296 
  297 /* trackpad finger data size, empirically at least ten fingers */
  298 #ifdef EVDEV_SUPPORT
  299 #define MAX_FINGERS             MAX_MT_SLOTS
  300 #else
  301 #define MAX_FINGERS             16
  302 #endif
  303 #define SIZEOF_FINGER           sizeof(struct tp_finger)
  304 #define SIZEOF_ALL_FINGERS      (MAX_FINGERS * SIZEOF_FINGER)
  305 #define MAX_FINGER_ORIENTATION  16384
  306 
  307 #if (WSP_BUFFER_MAX < ((MAX_FINGERS * FSIZE_TYPE4) + FINGER_TYPE4))
  308 #error "WSP_BUFFER_MAX is too small"
  309 #endif
  310 
  311 enum {
  312         WSP_FLAG_WELLSPRING1,
  313         WSP_FLAG_WELLSPRING2,
  314         WSP_FLAG_WELLSPRING3,
  315         WSP_FLAG_WELLSPRING4,
  316         WSP_FLAG_WELLSPRING4A,
  317         WSP_FLAG_WELLSPRING5,
  318         WSP_FLAG_WELLSPRING6A,
  319         WSP_FLAG_WELLSPRING6,
  320         WSP_FLAG_WELLSPRING5A,
  321         WSP_FLAG_WELLSPRING7,
  322         WSP_FLAG_WELLSPRING7A,
  323         WSP_FLAG_WELLSPRING8,
  324         WSP_FLAG_WELLSPRING9,
  325         WSP_FLAG_MAX,
  326 };
  327 
  328 /* device-specific parameters */
  329 struct wsp_param {
  330         int snratio;                    /* signal-to-noise ratio */
  331         int min;                        /* device minimum reading */
  332         int max;                        /* device maximum reading */
  333         int size;                       /* physical size, mm */
  334 };
  335 
  336 /* device-specific configuration */
  337 struct wsp_dev_params {
  338         const struct wsp_tp* tp;
  339         struct wsp_param p;             /* finger pressure limits */
  340         struct wsp_param w;             /* finger width limits */
  341         struct wsp_param x;             /* horizontal limits */
  342         struct wsp_param y;             /* vertical limits */
  343         struct wsp_param o;             /* orientation limits */
  344 };
  345 
  346 /* logical signal quality */
  347 #define SN_PRESSURE     45              /* pressure signal-to-noise ratio */
  348 #define SN_WIDTH        25              /* width signal-to-noise ratio */
  349 #define SN_COORD        250             /* coordinate signal-to-noise ratio */
  350 #define SN_ORIENT       10              /* orientation signal-to-noise ratio */
  351 
  352 static const struct wsp_dev_params wsp_dev_params[WSP_FLAG_MAX] = {
  353         [WSP_FLAG_WELLSPRING1] = {
  354                 .tp = wsp_tp + TYPE1,
  355                 .p = { SN_PRESSURE, 0, 256, 0 },
  356                 .w = { SN_WIDTH, 0, 2048, 0 },
  357                 .x = { SN_COORD, -4824, 5342, 105 },
  358                 .y = { SN_COORD, -172, 5820, 75 },
  359                 .o = { SN_ORIENT,
  360                     -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION, 0 },
  361         },
  362         [WSP_FLAG_WELLSPRING2] = {
  363                 .tp = wsp_tp + TYPE1,
  364                 .p = { SN_PRESSURE, 0, 256, 0 },
  365                 .w = { SN_WIDTH, 0, 2048, 0 },
  366                 .x = { SN_COORD, -4824, 4824, 105 },
  367                 .y = { SN_COORD, -172, 4290, 75 },
  368                 .o = { SN_ORIENT,
  369                     -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION, 0 },
  370         },
  371         [WSP_FLAG_WELLSPRING3] = {
  372                 .tp = wsp_tp + TYPE2,
  373                 .p = { SN_PRESSURE, 0, 300, 0 },
  374                 .w = { SN_WIDTH, 0, 2048, 0 },
  375                 .x = { SN_COORD, -4460, 5166, 105 },
  376                 .y = { SN_COORD, -75, 6700, 75 },
  377                 .o = { SN_ORIENT,
  378                     -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION, 0 },
  379         },
  380         [WSP_FLAG_WELLSPRING4] = {
  381                 .tp = wsp_tp + TYPE2,
  382                 .p = { SN_PRESSURE, 0, 300, 0 },
  383                 .w = { SN_WIDTH, 0, 2048, 0 },
  384                 .x = { SN_COORD, -4620, 5140, 105 },
  385                 .y = { SN_COORD, -150, 6600, 75 },
  386                 .o = { SN_ORIENT,
  387                     -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION, 0 },
  388         },
  389         [WSP_FLAG_WELLSPRING4A] = {
  390                 .tp = wsp_tp + TYPE2,
  391                 .p = { SN_PRESSURE, 0, 300, 0 },
  392                 .w = { SN_WIDTH, 0, 2048, 0 },
  393                 .x = { SN_COORD, -4616, 5112, 105 },
  394                 .y = { SN_COORD, -142, 5234, 75 },
  395                 .o = { SN_ORIENT,
  396                     -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION, 0 },
  397         },
  398         [WSP_FLAG_WELLSPRING5] = {
  399                 .tp = wsp_tp + TYPE2,
  400                 .p = { SN_PRESSURE, 0, 300, 0 },
  401                 .w = { SN_WIDTH, 0, 2048, 0 },
  402                 .x = { SN_COORD, -4415, 5050, 105 },
  403                 .y = { SN_COORD, -55, 6680, 75 },
  404                 .o = { SN_ORIENT,
  405                     -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION, 0 },
  406         },
  407         [WSP_FLAG_WELLSPRING6] = {
  408                 .tp = wsp_tp + TYPE2,
  409                 .p = { SN_PRESSURE, 0, 300, 0 },
  410                 .w = { SN_WIDTH, 0, 2048, 0 },
  411                 .x = { SN_COORD, -4620, 5140, 105 },
  412                 .y = { SN_COORD, -150, 6600, 75 },
  413                 .o = { SN_ORIENT,
  414                     -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION, 0 },
  415         },
  416         [WSP_FLAG_WELLSPRING5A] = {
  417                 .tp = wsp_tp + TYPE2,
  418                 .p = { SN_PRESSURE, 0, 300, 0 },
  419                 .w = { SN_WIDTH, 0, 2048, 0 },
  420                 .x = { SN_COORD, -4750, 5280, 105 },
  421                 .y = { SN_COORD, -150, 6730, 75 },
  422                 .o = { SN_ORIENT,
  423                     -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION, 0 },
  424         },
  425         [WSP_FLAG_WELLSPRING6A] = {
  426                 .tp = wsp_tp + TYPE2,
  427                 .p = { SN_PRESSURE, 0, 300, 0 },
  428                 .w = { SN_WIDTH, 0, 2048, 0 },
  429                 .x = { SN_COORD, -4620, 5140, 105 },
  430                 .y = { SN_COORD, -150, 6600, 75 },
  431                 .o = { SN_ORIENT,
  432                     -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION, 0 },
  433         },
  434         [WSP_FLAG_WELLSPRING7] = {
  435                 .tp = wsp_tp + TYPE2,
  436                 .p = { SN_PRESSURE, 0, 300, 0 },
  437                 .w = { SN_WIDTH, 0, 2048, 0 },
  438                 .x = { SN_COORD, -4750, 5280, 105 },
  439                 .y = { SN_COORD, -150, 6730, 75 },
  440                 .o = { SN_ORIENT,
  441                     -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION, 0 },
  442         },
  443         [WSP_FLAG_WELLSPRING7A] = {
  444                 .tp = wsp_tp + TYPE2,
  445                 .p = { SN_PRESSURE, 0, 300, 0 },
  446                 .w = { SN_WIDTH, 0, 2048, 0 },
  447                 .x = { SN_COORD, -4750, 5280, 105 },
  448                 .y = { SN_COORD, -150, 6730, 75 },
  449                 .o = { SN_ORIENT,
  450                     -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION, 0 },
  451         },
  452         [WSP_FLAG_WELLSPRING8] = {
  453                 .tp = wsp_tp + TYPE3,
  454                 .p = { SN_PRESSURE, 0, 300, 0 },
  455                 .w = { SN_WIDTH, 0, 2048, 0 },
  456                 .x = { SN_COORD, -4620, 5140, 105 },
  457                 .y = { SN_COORD, -150, 6600, 75 },
  458                 .o = { SN_ORIENT,
  459                     -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION, 0 },
  460         },
  461         [WSP_FLAG_WELLSPRING9] = {
  462                 .tp = wsp_tp + TYPE4,
  463                 .p = { SN_PRESSURE, 0, 300, 0 },
  464                 .w = { SN_WIDTH, 0, 2048, 0 },
  465                 .x = { SN_COORD, -4828, 5345, 105 },
  466                 .y = { SN_COORD, -203, 6803, 75 },
  467                 .o = { SN_ORIENT,
  468                     -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION, 0 },
  469         },
  470 };
  471 #define WSP_DEV(v,p,i) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, i) }
  472 
  473 static const STRUCT_USB_HOST_ID wsp_devs[] = {
  474         /* MacbookAir1.1 */
  475         WSP_DEV(APPLE, WELLSPRING_ANSI, WSP_FLAG_WELLSPRING1),
  476         WSP_DEV(APPLE, WELLSPRING_ISO, WSP_FLAG_WELLSPRING1),
  477         WSP_DEV(APPLE, WELLSPRING_JIS, WSP_FLAG_WELLSPRING1),
  478 
  479         /* MacbookProPenryn, aka wellspring2 */
  480         WSP_DEV(APPLE, WELLSPRING2_ANSI, WSP_FLAG_WELLSPRING2),
  481         WSP_DEV(APPLE, WELLSPRING2_ISO, WSP_FLAG_WELLSPRING2),
  482         WSP_DEV(APPLE, WELLSPRING2_JIS, WSP_FLAG_WELLSPRING2),
  483 
  484         /* Macbook5,1 (unibody), aka wellspring3 */
  485         WSP_DEV(APPLE, WELLSPRING3_ANSI, WSP_FLAG_WELLSPRING3),
  486         WSP_DEV(APPLE, WELLSPRING3_ISO, WSP_FLAG_WELLSPRING3),
  487         WSP_DEV(APPLE, WELLSPRING3_JIS, WSP_FLAG_WELLSPRING3),
  488 
  489         /* MacbookAir3,2 (unibody), aka wellspring4 */
  490         WSP_DEV(APPLE, WELLSPRING4_ANSI, WSP_FLAG_WELLSPRING4),
  491         WSP_DEV(APPLE, WELLSPRING4_ISO, WSP_FLAG_WELLSPRING4),
  492         WSP_DEV(APPLE, WELLSPRING4_JIS, WSP_FLAG_WELLSPRING4),
  493 
  494         /* MacbookAir3,1 (unibody), aka wellspring4 */
  495         WSP_DEV(APPLE, WELLSPRING4A_ANSI, WSP_FLAG_WELLSPRING4A),
  496         WSP_DEV(APPLE, WELLSPRING4A_ISO, WSP_FLAG_WELLSPRING4A),
  497         WSP_DEV(APPLE, WELLSPRING4A_JIS, WSP_FLAG_WELLSPRING4A),
  498 
  499         /* Macbook8 (unibody, March 2011) */
  500         WSP_DEV(APPLE, WELLSPRING5_ANSI, WSP_FLAG_WELLSPRING5),
  501         WSP_DEV(APPLE, WELLSPRING5_ISO, WSP_FLAG_WELLSPRING5),
  502         WSP_DEV(APPLE, WELLSPRING5_JIS, WSP_FLAG_WELLSPRING5),
  503 
  504         /* MacbookAir4,1 (unibody, July 2011) */
  505         WSP_DEV(APPLE, WELLSPRING6A_ANSI, WSP_FLAG_WELLSPRING6A),
  506         WSP_DEV(APPLE, WELLSPRING6A_ISO, WSP_FLAG_WELLSPRING6A),
  507         WSP_DEV(APPLE, WELLSPRING6A_JIS, WSP_FLAG_WELLSPRING6A),
  508 
  509         /* MacbookAir4,2 (unibody, July 2011) */
  510         WSP_DEV(APPLE, WELLSPRING6_ANSI, WSP_FLAG_WELLSPRING6),
  511         WSP_DEV(APPLE, WELLSPRING6_ISO, WSP_FLAG_WELLSPRING6),
  512         WSP_DEV(APPLE, WELLSPRING6_JIS, WSP_FLAG_WELLSPRING6),
  513 
  514         /* Macbook8,2 (unibody) */
  515         WSP_DEV(APPLE, WELLSPRING5A_ANSI, WSP_FLAG_WELLSPRING5A),
  516         WSP_DEV(APPLE, WELLSPRING5A_ISO, WSP_FLAG_WELLSPRING5A),
  517         WSP_DEV(APPLE, WELLSPRING5A_JIS, WSP_FLAG_WELLSPRING5A),
  518 
  519         /* MacbookPro10,1 (unibody, June 2012) */
  520         /* MacbookPro11,1-3 (unibody, June 2013) */
  521         WSP_DEV(APPLE, WELLSPRING7_ANSI, WSP_FLAG_WELLSPRING7),
  522         WSP_DEV(APPLE, WELLSPRING7_ISO, WSP_FLAG_WELLSPRING7),
  523         WSP_DEV(APPLE, WELLSPRING7_JIS, WSP_FLAG_WELLSPRING7),
  524 
  525         /* MacbookPro10,2 (unibody, October 2012) */
  526         WSP_DEV(APPLE, WELLSPRING7A_ANSI, WSP_FLAG_WELLSPRING7A),
  527         WSP_DEV(APPLE, WELLSPRING7A_ISO, WSP_FLAG_WELLSPRING7A),
  528         WSP_DEV(APPLE, WELLSPRING7A_JIS, WSP_FLAG_WELLSPRING7A),
  529 
  530         /* MacbookAir6,2 (unibody, June 2013) */
  531         WSP_DEV(APPLE, WELLSPRING8_ANSI, WSP_FLAG_WELLSPRING8),
  532         WSP_DEV(APPLE, WELLSPRING8_ISO, WSP_FLAG_WELLSPRING8),
  533         WSP_DEV(APPLE, WELLSPRING8_JIS, WSP_FLAG_WELLSPRING8),
  534 
  535         /* MacbookPro12,1 MacbookPro11,4 */
  536         WSP_DEV(APPLE, WELLSPRING9_ANSI, WSP_FLAG_WELLSPRING9),
  537         WSP_DEV(APPLE, WELLSPRING9_ISO, WSP_FLAG_WELLSPRING9),
  538         WSP_DEV(APPLE, WELLSPRING9_JIS, WSP_FLAG_WELLSPRING9),
  539 };
  540 
  541 #define WSP_FIFO_BUF_SIZE        8      /* bytes */
  542 #define WSP_FIFO_QUEUE_MAXLEN   50      /* units */
  543 
  544 enum {
  545         WSP_INTR_DT,
  546         WSP_N_TRANSFER,
  547 };
  548 
  549 struct wsp_softc {
  550         struct usb_device *sc_usb_device;
  551         struct mtx sc_mutex;            /* for synchronization */
  552         struct usb_xfer *sc_xfer[WSP_N_TRANSFER];
  553         struct usb_fifo_sc sc_fifo;
  554 
  555         const struct wsp_dev_params *sc_params; /* device configuration */
  556 
  557 #ifdef EVDEV_SUPPORT
  558         struct evdev_dev *sc_evdev;
  559 #endif
  560         mousehw_t sc_hw;
  561         mousemode_t sc_mode;
  562         u_int   sc_pollrate;
  563         mousestatus_t sc_status;
  564         int     sc_fflags;
  565         u_int   sc_state;
  566 #define WSP_ENABLED             0x01
  567 #define WSP_EVDEV_OPENED        0x02
  568 
  569         struct tp_finger *index[MAX_FINGERS];   /* finger index data */
  570         int16_t pos_x[MAX_FINGERS];     /* position array */
  571         int16_t pos_y[MAX_FINGERS];     /* position array */
  572         u_int   sc_touch;               /* touch status */
  573 #define WSP_UNTOUCH             0x00
  574 #define WSP_FIRST_TOUCH         0x01
  575 #define WSP_SECOND_TOUCH        0x02
  576 #define WSP_TOUCHING            0x04
  577         int16_t pre_pos_x;              /* previous position array */
  578         int16_t pre_pos_y;              /* previous position array */
  579         int     dx_sum;                 /* x axis cumulative movement */
  580         int     dy_sum;                 /* y axis cumulative movement */
  581         int     dz_sum;                 /* z axis cumulative movement */
  582         int     dz_count;
  583 #define WSP_DZ_MAX_COUNT        32
  584         int     dt_sum;                 /* T-axis cumulative movement */
  585         int     rdx;                    /* x axis remainder of divide by scale_factor */
  586         int     rdy;                    /* y axis remainder of divide by scale_factor */
  587         int     rdz;                    /* z axis remainder of divide by scale_factor */
  588         int     tp_datalen;
  589         uint8_t o_ntouch;               /* old touch finger status */
  590         uint8_t finger;                 /* 0 or 1 *, check which finger moving */
  591         uint16_t intr_count;
  592 #define WSP_TAP_THRESHOLD       3
  593 #define WSP_TAP_MAX_COUNT       20
  594         int     distance;               /* the distance of 2 fingers */
  595 #define MAX_DISTANCE            2500    /* the max allowed distance */
  596         uint8_t ibtn;                   /* button status in tapping */
  597         uint8_t ntaps;                  /* finger status in tapping */
  598         uint8_t scr_mode;               /* scroll status in movement */
  599 #define WSP_SCR_NONE            0
  600 #define WSP_SCR_VER             1
  601 #define WSP_SCR_HOR             2
  602         uint8_t tp_data[WSP_BUFFER_MAX] __aligned(4);           /* trackpad transferred data */
  603 };
  604 
  605 /*
  606  * function prototypes
  607  */
  608 static usb_fifo_cmd_t wsp_fifo_start_read;
  609 static usb_fifo_cmd_t wsp_fifo_stop_read;
  610 static usb_fifo_open_t wsp_open;
  611 static usb_fifo_close_t wsp_close;
  612 static usb_fifo_ioctl_t wsp_ioctl;
  613 
  614 static struct usb_fifo_methods wsp_fifo_methods = {
  615         .f_open = &wsp_open,
  616         .f_close = &wsp_close,
  617         .f_ioctl = &wsp_ioctl,
  618         .f_start_read = &wsp_fifo_start_read,
  619         .f_stop_read = &wsp_fifo_stop_read,
  620         .basename[0] = WSP_DRIVER_NAME,
  621 };
  622 
  623 #ifdef EVDEV_SUPPORT
  624 static evdev_open_t wsp_ev_open;
  625 static evdev_close_t wsp_ev_close;
  626 static const struct evdev_methods wsp_evdev_methods = {
  627         .ev_open = &wsp_ev_open,
  628         .ev_close = &wsp_ev_close,
  629 };
  630 #endif
  631 
  632 /* device initialization and shutdown */
  633 static int wsp_enable(struct wsp_softc *sc);
  634 static void wsp_disable(struct wsp_softc *sc);
  635 
  636 /* updating fifo */
  637 static void wsp_reset_buf(struct wsp_softc *sc);
  638 static void wsp_add_to_queue(struct wsp_softc *, int, int, int, uint32_t);
  639 
  640 /* Device methods. */
  641 static device_probe_t wsp_probe;
  642 static device_attach_t wsp_attach;
  643 static device_detach_t wsp_detach;
  644 static usb_callback_t wsp_intr_callback;
  645 
  646 static const struct usb_config wsp_config[WSP_N_TRANSFER] = {
  647         [WSP_INTR_DT] = {
  648                 .type = UE_INTERRUPT,
  649                 .endpoint = UE_ADDR_ANY,
  650                 .direction = UE_DIR_IN,
  651                 .flags = {
  652                         .pipe_bof = 0,
  653                         .short_xfer_ok = 1,
  654                 },
  655                 .bufsize = WSP_BUFFER_MAX,
  656                 .callback = &wsp_intr_callback,
  657         },
  658 };
  659 
  660 static usb_error_t
  661 wsp_set_device_mode(struct wsp_softc *sc, uint8_t on)
  662 {
  663         const struct wsp_dev_params *params = sc->sc_params;
  664         uint8_t mode_bytes[8];
  665         usb_error_t err;
  666 
  667         /* Type 3 does not require a mode switch */
  668         if (params->tp == wsp_tp + TYPE3)
  669                 return 0;
  670 
  671         err = usbd_req_get_report(sc->sc_usb_device, NULL,
  672             mode_bytes, params->tp->um_size, params->tp->iface_index,
  673             UHID_FEATURE_REPORT, params->tp->um_req_idx);
  674 
  675         if (err != USB_ERR_NORMAL_COMPLETION) {
  676                 DPRINTF("Failed to read device mode (%d)\n", err);
  677                 return (err);
  678         }
  679 
  680         /*
  681          * XXX Need to wait at least 250ms for hardware to get
  682          * ready. The device mode handling appears to be handled
  683          * asynchronously and we should not issue these commands too
  684          * quickly.
  685          */
  686         pause("WHW", hz / 4);
  687 
  688         mode_bytes[params->tp->um_switch_idx] =
  689             on ? params->tp->um_switch_on : params->tp->um_switch_off;
  690 
  691         return (usbd_req_set_report(sc->sc_usb_device, NULL,
  692             mode_bytes, params->tp->um_size, params->tp->iface_index,
  693             UHID_FEATURE_REPORT, params->tp->um_req_idx));
  694 }
  695 
  696 static int
  697 wsp_enable(struct wsp_softc *sc)
  698 {
  699         /* reset status */
  700         memset(&sc->sc_status, 0, sizeof(sc->sc_status));
  701         sc->sc_state |= WSP_ENABLED;
  702 
  703         DPRINTFN(WSP_LLEVEL_INFO, "enabled wsp\n");
  704         return (0);
  705 }
  706 
  707 static void
  708 wsp_disable(struct wsp_softc *sc)
  709 {
  710         sc->sc_state &= ~WSP_ENABLED;
  711         DPRINTFN(WSP_LLEVEL_INFO, "disabled wsp\n");
  712 }
  713 
  714 static int
  715 wsp_probe(device_t self)
  716 {
  717         struct usb_attach_arg *uaa = device_get_ivars(self);
  718         struct usb_interface_descriptor *id;
  719         struct usb_interface *iface;
  720         uint8_t i;
  721 
  722         if (uaa->usb_mode != USB_MODE_HOST)
  723                 return (ENXIO);
  724 
  725         /* figure out first interface matching */
  726         for (i = 1;; i++) {
  727                 iface = usbd_get_iface(uaa->device, i);
  728                 if (iface == NULL || i == 3)
  729                         return (ENXIO);
  730                 id = iface->idesc;
  731                 if ((id == NULL) ||
  732                     (id->bInterfaceClass != UICLASS_HID) ||
  733                     (id->bInterfaceProtocol != 0 &&
  734                     id->bInterfaceProtocol != UIPROTO_MOUSE))
  735                         continue;
  736                 break;
  737         }
  738         /* check if we are attaching to the first match */
  739         if (uaa->info.bIfaceIndex != i)
  740                 return (ENXIO);
  741         if (usbd_lookup_id_by_uaa(wsp_devs, sizeof(wsp_devs), uaa) != 0)
  742                 return (ENXIO);
  743 
  744         return (BUS_PROBE_DEFAULT);
  745 }
  746 
  747 static int
  748 wsp_attach(device_t dev)
  749 {
  750         struct wsp_softc *sc = device_get_softc(dev);
  751         struct usb_attach_arg *uaa = device_get_ivars(dev);
  752         usb_error_t err;
  753         void *d_ptr = NULL;
  754         uint16_t d_len;
  755 
  756         DPRINTFN(WSP_LLEVEL_INFO, "sc=%p\n", sc);
  757 
  758         /* Get HID descriptor */
  759         err = usbd_req_get_hid_desc(uaa->device, NULL, &d_ptr,
  760             &d_len, M_TEMP, uaa->info.bIfaceIndex);
  761 
  762         if (err == USB_ERR_NORMAL_COMPLETION) {
  763                 /* Get HID report descriptor length */
  764                 sc->tp_datalen = hid_report_size_max(d_ptr, d_len, hid_input,
  765                     NULL);
  766                 free(d_ptr, M_TEMP);
  767 
  768                 if (sc->tp_datalen <= 0 || sc->tp_datalen > WSP_BUFFER_MAX) {
  769                         DPRINTF("Invalid datalength or too big "
  770                             "datalength: %d\n", sc->tp_datalen);
  771                         return (ENXIO);
  772                 }
  773         } else {
  774                 return (ENXIO);
  775         }
  776 
  777         sc->sc_usb_device = uaa->device;
  778 
  779         /* get device specific configuration */
  780         sc->sc_params = wsp_dev_params + USB_GET_DRIVER_INFO(uaa);
  781 
  782         /*
  783          * By default the touchpad behaves like a HID device, sending
  784          * packets with reportID = 8. Such reports contain only
  785          * limited information. They encode movement deltas and button
  786          * events, but do not include data from the pressure
  787          * sensors. The device input mode can be switched from HID
  788          * reports to raw sensor data using vendor-specific USB
  789          * control commands:
  790          */
  791 
  792         /*
  793          * During re-enumeration of the device we need to force the
  794          * device back into HID mode before switching it to RAW
  795          * mode. Else the device does not work like expected.
  796          */
  797         err = wsp_set_device_mode(sc, 0);
  798         if (err != USB_ERR_NORMAL_COMPLETION) {
  799                 DPRINTF("Failed to set mode to HID MODE (%d)\n", err);
  800                 return (ENXIO);
  801         }
  802 
  803         err = wsp_set_device_mode(sc, 1);
  804         if (err != USB_ERR_NORMAL_COMPLETION) {
  805                 DPRINTF("failed to set mode to RAW MODE (%d)\n", err);
  806                 return (ENXIO);
  807         }
  808 
  809         mtx_init(&sc->sc_mutex, "wspmtx", NULL, MTX_DEF | MTX_RECURSE);
  810 
  811         err = usbd_transfer_setup(uaa->device,
  812             &uaa->info.bIfaceIndex, sc->sc_xfer, wsp_config,
  813             WSP_N_TRANSFER, sc, &sc->sc_mutex);
  814         if (err) {
  815                 DPRINTF("error=%s\n", usbd_errstr(err));
  816                 goto detach;
  817         }
  818         if (usb_fifo_attach(sc->sc_usb_device, sc, &sc->sc_mutex,
  819             &wsp_fifo_methods, &sc->sc_fifo,
  820             device_get_unit(dev), -1, uaa->info.bIfaceIndex,
  821             UID_ROOT, GID_OPERATOR, 0644)) {
  822                 goto detach;
  823         }
  824         device_set_usb_desc(dev);
  825 
  826         sc->sc_hw.buttons = 3;
  827         sc->sc_hw.iftype = MOUSE_IF_USB;
  828         sc->sc_hw.type = MOUSE_PAD;
  829         sc->sc_hw.model = MOUSE_MODEL_GENERIC;
  830         sc->sc_mode.protocol = MOUSE_PROTO_MSC;
  831         sc->sc_mode.rate = -1;
  832         sc->sc_mode.resolution = MOUSE_RES_UNKNOWN;
  833         sc->sc_mode.packetsize = MOUSE_MSC_PACKETSIZE;
  834         sc->sc_mode.syncmask[0] = MOUSE_MSC_SYNCMASK;
  835         sc->sc_mode.syncmask[1] = MOUSE_MSC_SYNC;
  836 
  837         sc->sc_touch = WSP_UNTOUCH;
  838         sc->scr_mode = WSP_SCR_NONE;
  839 
  840 #ifdef EVDEV_SUPPORT
  841         sc->sc_evdev = evdev_alloc();
  842         evdev_set_name(sc->sc_evdev, device_get_desc(dev));
  843         evdev_set_phys(sc->sc_evdev, device_get_nameunit(dev));
  844         evdev_set_id(sc->sc_evdev, BUS_USB, uaa->info.idVendor,
  845             uaa->info.idProduct, 0);
  846         evdev_set_serial(sc->sc_evdev, usb_get_serial(uaa->device));
  847         evdev_set_methods(sc->sc_evdev, sc, &wsp_evdev_methods);
  848         evdev_support_prop(sc->sc_evdev, INPUT_PROP_POINTER);
  849         evdev_support_event(sc->sc_evdev, EV_SYN);
  850         evdev_support_event(sc->sc_evdev, EV_ABS);
  851         evdev_support_event(sc->sc_evdev, EV_KEY);
  852 
  853 #define WSP_SUPPORT_ABS(evdev, code, param)                             \
  854         evdev_support_abs((evdev), (code), (param).min, (param).max,    \
  855         ((param).max - (param).min) / (param).snratio, 0,               \
  856         (param).size != 0 ? ((param).max - (param).min) / (param).size : 0);
  857 
  858         /* finger position */
  859         WSP_SUPPORT_ABS(sc->sc_evdev, ABS_MT_POSITION_X, sc->sc_params->x);
  860         WSP_SUPPORT_ABS(sc->sc_evdev, ABS_MT_POSITION_Y, sc->sc_params->y);
  861         /* finger pressure */
  862         WSP_SUPPORT_ABS(sc->sc_evdev, ABS_MT_PRESSURE, sc->sc_params->p);
  863         /* finger touch area */
  864         WSP_SUPPORT_ABS(sc->sc_evdev, ABS_MT_TOUCH_MAJOR, sc->sc_params->w);
  865         WSP_SUPPORT_ABS(sc->sc_evdev, ABS_MT_TOUCH_MINOR, sc->sc_params->w);
  866         /* finger approach area */
  867         WSP_SUPPORT_ABS(sc->sc_evdev, ABS_MT_WIDTH_MAJOR, sc->sc_params->w);
  868         WSP_SUPPORT_ABS(sc->sc_evdev, ABS_MT_WIDTH_MINOR, sc->sc_params->w);
  869         /* finger orientation */
  870         WSP_SUPPORT_ABS(sc->sc_evdev, ABS_MT_ORIENTATION, sc->sc_params->o);
  871         /* button properties */
  872         evdev_support_key(sc->sc_evdev, BTN_LEFT);
  873         if ((sc->sc_params->tp->caps & HAS_INTEGRATED_BUTTON) != 0)
  874                 evdev_support_prop(sc->sc_evdev, INPUT_PROP_BUTTONPAD);
  875         /* Enable automatic touch assignment for type B MT protocol */
  876         evdev_support_abs(sc->sc_evdev, ABS_MT_SLOT,
  877             0, MAX_FINGERS - 1, 0, 0, 0);
  878         evdev_support_abs(sc->sc_evdev, ABS_MT_TRACKING_ID,
  879             -1, MAX_FINGERS - 1, 0, 0, 0);
  880         evdev_set_flag(sc->sc_evdev, EVDEV_FLAG_MT_TRACK);
  881         evdev_set_flag(sc->sc_evdev, EVDEV_FLAG_MT_AUTOREL);
  882         /* Synaptics compatibility events */
  883         evdev_set_flag(sc->sc_evdev, EVDEV_FLAG_MT_STCOMPAT);
  884 
  885         err = evdev_register(sc->sc_evdev);
  886         if (err)
  887                 goto detach;
  888 #endif
  889 
  890         return (0);
  891 
  892 detach:
  893         wsp_detach(dev);
  894         return (ENOMEM);
  895 }
  896 
  897 static int
  898 wsp_detach(device_t dev)
  899 {
  900         struct wsp_softc *sc = device_get_softc(dev);
  901 
  902         (void) wsp_set_device_mode(sc, 0);
  903 
  904         mtx_lock(&sc->sc_mutex);
  905         if (sc->sc_state & WSP_ENABLED)
  906                 wsp_disable(sc);
  907         mtx_unlock(&sc->sc_mutex);
  908 
  909         usb_fifo_detach(&sc->sc_fifo);
  910 
  911 #ifdef EVDEV_SUPPORT
  912         evdev_free(sc->sc_evdev);
  913 #endif
  914 
  915         usbd_transfer_unsetup(sc->sc_xfer, WSP_N_TRANSFER);
  916 
  917         mtx_destroy(&sc->sc_mutex);
  918 
  919         return (0);
  920 }
  921 
  922 static void
  923 wsp_intr_callback(struct usb_xfer *xfer, usb_error_t error)
  924 {
  925         struct wsp_softc *sc = usbd_xfer_softc(xfer);
  926         const struct wsp_dev_params *params = sc->sc_params;
  927         struct usb_page_cache *pc;
  928         struct tp_finger *f;
  929         struct wsp_tuning tun = wsp_tuning;
  930         int ntouch = 0;                 /* the finger number in touch */
  931         int ibt = 0;                    /* button status */
  932         int dx = 0;
  933         int dy = 0;
  934         int dz = 0;
  935         int rdx = 0;
  936         int rdy = 0;
  937         int rdz = 0;
  938         int len;
  939         int i;
  940 #ifdef EVDEV_SUPPORT
  941         int slot = 0;
  942 #endif
  943 
  944         wsp_runing_rangecheck(&tun);
  945 
  946         if (sc->dz_count == 0)
  947                 sc->dz_count = WSP_DZ_MAX_COUNT;
  948 
  949         usbd_xfer_status(xfer, &len, NULL, NULL, NULL);
  950 
  951         switch (USB_GET_STATE(xfer)) {
  952         case USB_ST_TRANSFERRED:
  953 
  954                 /* copy out received data */
  955                 pc = usbd_xfer_get_frame(xfer, 0);
  956                 usbd_copy_out(pc, 0, sc->tp_data, len);
  957 
  958                 if ((len < params->tp->offset + params->tp->fsize) ||
  959                     ((len - params->tp->offset) % params->tp->fsize) != 0) {
  960                         DPRINTFN(WSP_LLEVEL_INFO, "Invalid length: %d, %x, %x\n",
  961                             len, sc->tp_data[0], sc->tp_data[1]);
  962                         goto tr_setup;
  963                 }
  964 
  965                 if (len < sc->tp_datalen) {
  966                         /* make sure we don't process old data */
  967                         memset(sc->tp_data + len, 0, sc->tp_datalen - len);
  968                 }
  969 
  970                 if (params->tp != wsp_tp + TYPE1) {
  971                         ibt = sc->tp_data[params->tp->button];
  972                         ntouch = sc->tp_data[params->tp->button - 1];
  973                 } else
  974                         ntouch = (len - params->tp->offset) / params->tp->fsize;
  975 
  976                 /* range check */
  977                 if (ntouch < 0)
  978                         ntouch = 0;
  979                 else if (ntouch > MAX_FINGERS)
  980                         ntouch = MAX_FINGERS;
  981 
  982                 for (i = 0; i != ntouch; i++) {
  983                         f = (struct tp_finger *)(sc->tp_data + params->tp->offset + params->tp->delta + i * params->tp->fsize);
  984                         /* swap endianness, if any */
  985                         if (le16toh(0x1234) != 0x1234) {
  986                                 f->origin = le16toh((uint16_t)f->origin);
  987                                 f->abs_x = le16toh((uint16_t)f->abs_x);
  988                                 f->abs_y = le16toh((uint16_t)f->abs_y);
  989                                 f->rel_x = le16toh((uint16_t)f->rel_x);
  990                                 f->rel_y = le16toh((uint16_t)f->rel_y);
  991                                 f->tool_major = le16toh((uint16_t)f->tool_major);
  992                                 f->tool_minor = le16toh((uint16_t)f->tool_minor);
  993                                 f->orientation = le16toh((uint16_t)f->orientation);
  994                                 f->touch_major = le16toh((uint16_t)f->touch_major);
  995                                 f->touch_minor = le16toh((uint16_t)f->touch_minor);
  996                                 f->pressure = le16toh((uint16_t)f->pressure);
  997                                 f->multi = le16toh((uint16_t)f->multi);
  998                         }
  999                         DPRINTFN(WSP_LLEVEL_INFO, 
 1000                             "[%d]ibt=%d, taps=%d, o=%4d, ax=%5d, ay=%5d, "
 1001                             "rx=%5d, ry=%5d, tlmaj=%4d, tlmin=%4d, ot=%4x, "
 1002                             "tchmaj=%4d, tchmin=%4d, presure=%4d, m=%4x\n",
 1003                             i, ibt, ntouch, f->origin, f->abs_x, f->abs_y,
 1004                             f->rel_x, f->rel_y, f->tool_major, f->tool_minor, f->orientation,
 1005                             f->touch_major, f->touch_minor, f->pressure, f->multi);
 1006                         sc->pos_x[i] = f->abs_x;
 1007                         sc->pos_y[i] = -f->abs_y;
 1008                         sc->index[i] = f;
 1009 #ifdef EVDEV_SUPPORT
 1010                         if (evdev_rcpt_mask & EVDEV_RCPT_HW_MOUSE && f->touch_major != 0) {
 1011                                 union evdev_mt_slot slot_data = {
 1012                                         .id = slot,
 1013                                         .x = f->abs_x,
 1014                                         .y = params->y.min + params->y.max - f->abs_y,
 1015                                         .p = f->pressure,
 1016                                         .maj = f->touch_major << 1,
 1017                                         .min = f->touch_minor << 1,
 1018                                         .w_maj = f->tool_major << 1,
 1019                                         .w_min = f->tool_minor << 1,
 1020                                         .ori = params->o.max - f->orientation,
 1021                                 };
 1022                                 evdev_mt_push_slot(sc->sc_evdev, slot, &slot_data);
 1023                                 slot++;
 1024                         }
 1025 #endif
 1026                 }
 1027 
 1028 #ifdef EVDEV_SUPPORT
 1029                 if (evdev_rcpt_mask & EVDEV_RCPT_HW_MOUSE) {
 1030                         evdev_push_key(sc->sc_evdev, BTN_LEFT, ibt);
 1031                         evdev_sync(sc->sc_evdev);
 1032                 }
 1033 #endif
 1034                 sc->sc_status.flags &= ~MOUSE_POSCHANGED;
 1035                 sc->sc_status.flags &= ~MOUSE_STDBUTTONSCHANGED;
 1036                 sc->sc_status.obutton = sc->sc_status.button;
 1037                 sc->sc_status.button = 0;
 1038 
 1039                 if (ibt != 0) {
 1040                         if ((params->tp->caps & HAS_INTEGRATED_BUTTON) && ntouch == 2)
 1041                                 sc->sc_status.button |= MOUSE_BUTTON3DOWN;
 1042                         else if ((params->tp->caps & HAS_INTEGRATED_BUTTON) && ntouch == 3)
 1043                                 sc->sc_status.button |= MOUSE_BUTTON2DOWN;
 1044                         else 
 1045                                 sc->sc_status.button |= MOUSE_BUTTON1DOWN;
 1046                         sc->ibtn = 1;
 1047                 }
 1048                 sc->intr_count++;
 1049 
 1050                 if (sc->ntaps < ntouch) {
 1051                         switch (ntouch) {
 1052                         case 1:
 1053                                 if (sc->index[0]->touch_major > tun.pressure_tap_threshold &&
 1054                                     sc->index[0]->tool_major <= 1200)
 1055                                         sc->ntaps = 1;
 1056                                 break;
 1057                         case 2:
 1058                                 if (sc->index[0]->touch_major > tun.pressure_tap_threshold-30 &&
 1059                                     sc->index[1]->touch_major > tun.pressure_tap_threshold-30)
 1060                                         sc->ntaps = 2;
 1061                                 break;
 1062                         case 3:
 1063                                 if (sc->index[0]->touch_major > tun.pressure_tap_threshold-40 &&
 1064                                     sc->index[1]->touch_major > tun.pressure_tap_threshold-40 &&
 1065                                     sc->index[2]->touch_major > tun.pressure_tap_threshold-40)
 1066                                         sc->ntaps = 3;
 1067                                 break;
 1068                         default:
 1069                                 break;
 1070                         }
 1071                 }
 1072                 if (ntouch == 2) {
 1073                         sc->distance = max(sc->distance, max(
 1074                             abs(sc->pos_x[0] - sc->pos_x[1]),
 1075                             abs(sc->pos_y[0] - sc->pos_y[1])));
 1076                 }
 1077                 if (sc->index[0]->touch_major < tun.pressure_untouch_threshold &&
 1078                     sc->sc_status.button == 0) {
 1079                         sc->sc_touch = WSP_UNTOUCH;
 1080                         if (sc->intr_count < WSP_TAP_MAX_COUNT &&
 1081                             sc->intr_count > WSP_TAP_THRESHOLD &&
 1082                             sc->ntaps && sc->ibtn == 0) {
 1083                                 /*
 1084                                  * Add a pair of events (button-down and
 1085                                  * button-up).
 1086                                  */
 1087                                 switch (sc->ntaps) {
 1088                                 case 1:
 1089                                         if (!(params->tp->caps & HAS_INTEGRATED_BUTTON) || tun.enable_single_tap_clicks) {
 1090                                                 wsp_add_to_queue(sc, 0, 0, 0, MOUSE_BUTTON1DOWN);
 1091                                                 DPRINTFN(WSP_LLEVEL_INFO, "LEFT CLICK!\n");
 1092                                         }
 1093                                         break;
 1094                                 case 2:
 1095                                         DPRINTFN(WSP_LLEVEL_INFO, "sum_x=%5d, sum_y=%5d\n",
 1096                                             sc->dx_sum, sc->dy_sum);
 1097                                         if (sc->distance < MAX_DISTANCE && abs(sc->dx_sum) < 5 &&
 1098                                             abs(sc->dy_sum) < 5) {
 1099                                                 wsp_add_to_queue(sc, 0, 0, 0, MOUSE_BUTTON3DOWN);
 1100                                                 DPRINTFN(WSP_LLEVEL_INFO, "RIGHT CLICK!\n");
 1101                                         }
 1102                                         break;
 1103                                 case 3:
 1104                                         wsp_add_to_queue(sc, 0, 0, 0, MOUSE_BUTTON2DOWN);
 1105                                         break;
 1106                                 default:
 1107                                         /* we don't handle taps of more than three fingers */
 1108                                         break;
 1109                                 }
 1110                                 wsp_add_to_queue(sc, 0, 0, 0, 0);       /* button release */
 1111                         }
 1112                         if ((sc->dt_sum / tun.scr_hor_threshold) != 0 &&
 1113                             sc->ntaps == 2 && sc->scr_mode == WSP_SCR_HOR) {
 1114                                 /*
 1115                                  * translate T-axis into button presses
 1116                                  * until further
 1117                                  */
 1118                                 if (sc->dt_sum > 0)
 1119                                         wsp_add_to_queue(sc, 0, 0, 0, 1UL << 3);
 1120                                 else if (sc->dt_sum < 0)
 1121                                         wsp_add_to_queue(sc, 0, 0, 0, 1UL << 4);
 1122                         }
 1123                         sc->dz_count = WSP_DZ_MAX_COUNT;
 1124                         sc->dz_sum = 0;
 1125                         sc->intr_count = 0;
 1126                         sc->ibtn = 0;
 1127                         sc->ntaps = 0;
 1128                         sc->finger = 0;
 1129                         sc->distance = 0;
 1130                         sc->dt_sum = 0;
 1131                         sc->dx_sum = 0;
 1132                         sc->dy_sum = 0;
 1133                         sc->rdx = 0;
 1134                         sc->rdy = 0;
 1135                         sc->rdz = 0;
 1136                         sc->scr_mode = WSP_SCR_NONE;
 1137                 } else if (sc->index[0]->touch_major >= tun.pressure_touch_threshold &&
 1138                     sc->sc_touch == WSP_UNTOUCH) {      /* ignore first touch */
 1139                         sc->sc_touch = WSP_FIRST_TOUCH;
 1140                 } else if (sc->index[0]->touch_major >= tun.pressure_touch_threshold &&
 1141                     sc->sc_touch == WSP_FIRST_TOUCH) {  /* ignore second touch */
 1142                         sc->sc_touch = WSP_SECOND_TOUCH;
 1143                         DPRINTFN(WSP_LLEVEL_INFO, "Fist pre_x=%5d, pre_y=%5d\n",
 1144                             sc->pre_pos_x, sc->pre_pos_y);
 1145                 } else {
 1146                         if (sc->sc_touch == WSP_SECOND_TOUCH)
 1147                                 sc->sc_touch = WSP_TOUCHING;
 1148 
 1149                         if (ntouch != 0 &&
 1150                             sc->index[0]->touch_major >= tun.pressure_touch_threshold) {
 1151                                 dx = sc->pos_x[0] - sc->pre_pos_x;
 1152                                 dy = sc->pos_y[0] - sc->pre_pos_y;
 1153 
 1154                                 /* Ignore movement during button is releasing */
 1155                                 if (sc->ibtn != 0 && sc->sc_status.button == 0)
 1156                                         dx = dy = 0;
 1157 
 1158                                 /* Ignore movement if ntouch changed */
 1159                                 if (sc->o_ntouch != ntouch)
 1160                                         dx = dy = 0;
 1161 
 1162                                 /* Ignore unexpeted movement when typing */
 1163                                 if (ntouch == 1 && sc->index[0]->tool_major > 1200)
 1164                                         dx = dy = 0;
 1165 
 1166                                 if (sc->ibtn != 0 && ntouch == 1 && 
 1167                                     sc->intr_count < WSP_TAP_MAX_COUNT && 
 1168                                     abs(sc->dx_sum) < 1 && abs(sc->dy_sum) < 1 )
 1169                                         dx = dy = 0;
 1170 
 1171                                 if (ntouch == 2 && sc->sc_status.button != 0) {
 1172                                         dx = sc->pos_x[sc->finger] - sc->pre_pos_x;
 1173                                         dy = sc->pos_y[sc->finger] - sc->pre_pos_y;
 1174                                         
 1175                                         /*
 1176                                          * Ignore movement of switch finger or
 1177                                          * movement from ibt=0 to ibt=1
 1178                                          */
 1179                                         if (sc->index[0]->origin == 0 || sc->index[1]->origin == 0 ||
 1180                                             sc->sc_status.obutton != sc->sc_status.button) {
 1181                                                 dx = dy = 0;
 1182                                                 sc->finger = 0;
 1183                                         }
 1184                                         if ((abs(sc->index[0]->rel_x) + abs(sc->index[0]->rel_y)) <
 1185                                             (abs(sc->index[1]->rel_x) + abs(sc->index[1]->rel_y)) &&
 1186                                             sc->finger == 0) {
 1187                                                 sc->sc_touch = WSP_SECOND_TOUCH;
 1188                                                 dx = dy = 0;
 1189                                                 sc->finger = 1;
 1190                                         }
 1191                                         if ((abs(sc->index[0]->rel_x) + abs(sc->index[0]->rel_y)) >=
 1192                                             (abs(sc->index[1]->rel_x) + abs(sc->index[1]->rel_y)) &&
 1193                                             sc->finger == 1) {
 1194                                                 sc->sc_touch = WSP_SECOND_TOUCH;
 1195                                                 dx = dy = 0;
 1196                                                 sc->finger = 0;
 1197                                         }
 1198                                         DPRINTFN(WSP_LLEVEL_INFO, "dx=%5d, dy=%5d, mov=%5d\n",
 1199                                             dx, dy, sc->finger);
 1200                                 }
 1201                                 if (sc->dz_count--) {
 1202                                         rdz = (dy + sc->rdz) % tun.scale_factor;
 1203                                         sc->dz_sum -= (dy + sc->rdz) / tun.scale_factor;
 1204                                         sc->rdz = rdz;
 1205                                 }
 1206                                 if ((sc->dz_sum / tun.z_factor) != 0)
 1207                                         sc->dz_count = 0;
 1208                         }
 1209                         rdx = (dx + sc->rdx) % tun.scale_factor;
 1210                         dx = (dx + sc->rdx) / tun.scale_factor;
 1211                         sc->rdx = rdx;
 1212 
 1213                         rdy = (dy + sc->rdy) % tun.scale_factor;
 1214                         dy = (dy + sc->rdy) / tun.scale_factor;
 1215                         sc->rdy = rdy;
 1216 
 1217                         sc->dx_sum += dx;
 1218                         sc->dy_sum += dy;
 1219 
 1220                         if (ntouch == 2 && sc->sc_status.button == 0) {
 1221                                 if (sc->scr_mode == WSP_SCR_NONE &&
 1222                                     abs(sc->dx_sum) + abs(sc->dy_sum) > tun.scr_hor_threshold)
 1223                                         sc->scr_mode = abs(sc->dx_sum) >
 1224                                             abs(sc->dy_sum) * 2 ? WSP_SCR_HOR : WSP_SCR_VER;
 1225                                 DPRINTFN(WSP_LLEVEL_INFO, "scr_mode=%5d, count=%d, dx_sum=%d, dy_sum=%d\n",
 1226                                     sc->scr_mode, sc->intr_count, sc->dx_sum, sc->dy_sum);
 1227                                 if (sc->scr_mode == WSP_SCR_HOR)
 1228                                         sc->dt_sum += dx;
 1229                                 else
 1230                                         sc->dt_sum = 0;
 1231 
 1232                                 dx = dy = 0;
 1233                                 if (sc->dz_count == 0)
 1234                                         dz = (sc->dz_sum / tun.z_factor) * (tun.z_invert ? -1 : 1);
 1235                                 if (sc->scr_mode == WSP_SCR_HOR || 
 1236                                     abs(sc->pos_x[0] - sc->pos_x[1]) > MAX_DISTANCE ||
 1237                                     abs(sc->pos_y[0] - sc->pos_y[1]) > MAX_DISTANCE)
 1238                                         dz = 0;
 1239                         }
 1240                         if (ntouch == 3)
 1241                                 dx = dy = dz = 0;
 1242                         if (sc->intr_count < WSP_TAP_MAX_COUNT &&
 1243                             abs(dx) < 3 && abs(dy) < 3 && abs(dz) < 3)
 1244                                 dx = dy = dz = 0;
 1245                         else
 1246                                 sc->intr_count = WSP_TAP_MAX_COUNT;
 1247                         if (dx || dy || dz)
 1248                                 sc->sc_status.flags |= MOUSE_POSCHANGED;
 1249                         DPRINTFN(WSP_LLEVEL_INFO, "dx=%5d, dy=%5d, dz=%5d, sc_touch=%x, btn=%x\n",
 1250                             dx, dy, dz, sc->sc_touch, sc->sc_status.button);
 1251                         sc->sc_status.dx += dx;
 1252                         sc->sc_status.dy += dy;
 1253                         sc->sc_status.dz += dz;
 1254 
 1255                         wsp_add_to_queue(sc, dx, -dy, dz, sc->sc_status.button);
 1256                         if (sc->dz_count == 0) {
 1257                                 sc->dz_sum = 0;
 1258                                 sc->rdz = 0;
 1259                         }
 1260                 }
 1261                 sc->pre_pos_x = sc->pos_x[0];
 1262                 sc->pre_pos_y = sc->pos_y[0];
 1263 
 1264                 if (ntouch == 2 && sc->sc_status.button != 0) {
 1265                         sc->pre_pos_x = sc->pos_x[sc->finger];
 1266                         sc->pre_pos_y = sc->pos_y[sc->finger];
 1267                 }
 1268                 sc->o_ntouch = ntouch;
 1269 
 1270         case USB_ST_SETUP:
 1271 tr_setup:
 1272                 /* check if we can put more data into the FIFO */
 1273                 if (usb_fifo_put_bytes_max(
 1274                     sc->sc_fifo.fp[USB_FIFO_RX]) != 0) {
 1275                         usbd_xfer_set_frame_len(xfer, 0,
 1276                             sc->tp_datalen);
 1277                         usbd_transfer_submit(xfer);
 1278                 }
 1279                 break;
 1280 
 1281         default:                        /* Error */
 1282                 if (error != USB_ERR_CANCELLED) {
 1283                         /* try clear stall first */
 1284                         usbd_xfer_set_stall(xfer);
 1285                         goto tr_setup;
 1286                 }
 1287                 break;
 1288         }
 1289 }
 1290 
 1291 static void
 1292 wsp_add_to_queue(struct wsp_softc *sc, int dx, int dy, int dz,
 1293     uint32_t buttons_in)
 1294 {
 1295         uint32_t buttons_out;
 1296         uint8_t buf[8];
 1297 
 1298         dx = imin(dx, 254);
 1299         dx = imax(dx, -256);
 1300         dy = imin(dy, 254);
 1301         dy = imax(dy, -256);
 1302         dz = imin(dz, 126);
 1303         dz = imax(dz, -128);
 1304 
 1305         buttons_out = MOUSE_MSC_BUTTONS;
 1306         if (buttons_in & MOUSE_BUTTON1DOWN)
 1307                 buttons_out &= ~MOUSE_MSC_BUTTON1UP;
 1308         else if (buttons_in & MOUSE_BUTTON2DOWN)
 1309                 buttons_out &= ~MOUSE_MSC_BUTTON2UP;
 1310         else if (buttons_in & MOUSE_BUTTON3DOWN)
 1311                 buttons_out &= ~MOUSE_MSC_BUTTON3UP;
 1312 
 1313         /* Encode the mouse data in standard format; refer to mouse(4) */
 1314         buf[0] = sc->sc_mode.syncmask[1];
 1315         buf[0] |= buttons_out;
 1316         buf[1] = dx >> 1;
 1317         buf[2] = dy >> 1;
 1318         buf[3] = dx - (dx >> 1);
 1319         buf[4] = dy - (dy >> 1);
 1320         /* Encode extra bytes for level 1 */
 1321         if (sc->sc_mode.level == 1) {
 1322                 buf[5] = dz >> 1;       /* dz / 2 */
 1323                 buf[6] = dz - (dz >> 1);/* dz - (dz / 2) */
 1324                 buf[7] = (((~buttons_in) >> 3) & MOUSE_SYS_EXTBUTTONS);
 1325         }
 1326         usb_fifo_put_data_linear(sc->sc_fifo.fp[USB_FIFO_RX], buf,
 1327             sc->sc_mode.packetsize, 1);
 1328 }
 1329 
 1330 static void
 1331 wsp_reset_buf(struct wsp_softc *sc)
 1332 {
 1333         /* reset read queue */
 1334         usb_fifo_reset(sc->sc_fifo.fp[USB_FIFO_RX]);
 1335 }
 1336 
 1337 static void
 1338 wsp_start_read(struct wsp_softc *sc)
 1339 {
 1340         int rate;
 1341 
 1342         /* Check if we should override the default polling interval */
 1343         rate = sc->sc_pollrate;
 1344         /* Range check rate */
 1345         if (rate > 1000)
 1346                 rate = 1000;
 1347         /* Check for set rate */
 1348         if ((rate > 0) && (sc->sc_xfer[WSP_INTR_DT] != NULL)) {
 1349                 /* Stop current transfer, if any */
 1350                 usbd_transfer_stop(sc->sc_xfer[WSP_INTR_DT]);
 1351                 /* Set new interval */
 1352                 usbd_xfer_set_interval(sc->sc_xfer[WSP_INTR_DT], 1000 / rate);
 1353                 /* Only set pollrate once */
 1354                 sc->sc_pollrate = 0;
 1355         }
 1356         usbd_transfer_start(sc->sc_xfer[WSP_INTR_DT]);
 1357 }
 1358 
 1359 static void
 1360 wsp_stop_read(struct wsp_softc *sc)
 1361 {
 1362         usbd_transfer_stop(sc->sc_xfer[WSP_INTR_DT]);
 1363 }
 1364 
 1365 static int
 1366 wsp_open(struct usb_fifo *fifo, int fflags)
 1367 {
 1368         struct wsp_softc *sc = usb_fifo_softc(fifo);
 1369         int rc = 0;
 1370 
 1371         DPRINTFN(WSP_LLEVEL_INFO, "\n");
 1372 
 1373         if (sc->sc_fflags & fflags)
 1374                 return (EBUSY);
 1375 
 1376         if (fflags & FREAD) {
 1377                 if (usb_fifo_alloc_buffer(fifo,
 1378                     WSP_FIFO_BUF_SIZE, WSP_FIFO_QUEUE_MAXLEN)) {
 1379                         return (ENOMEM);
 1380                 }
 1381 #ifdef EVDEV_SUPPORT
 1382                 if ((sc->sc_state & WSP_EVDEV_OPENED) == 0)
 1383 #endif
 1384                         rc = wsp_enable(sc);
 1385                 if (rc != 0) {
 1386                         usb_fifo_free_buffer(fifo);
 1387                         return (rc);
 1388                 }
 1389         }
 1390         sc->sc_fflags |= fflags & (FREAD | FWRITE);
 1391         return (0);
 1392 }
 1393 
 1394 static void
 1395 wsp_close(struct usb_fifo *fifo, int fflags)
 1396 {
 1397         struct wsp_softc *sc = usb_fifo_softc(fifo);
 1398 
 1399         if (fflags & FREAD) {
 1400 #ifdef EVDEV_SUPPORT
 1401                 if ((sc->sc_state & WSP_EVDEV_OPENED) == 0)
 1402 #endif
 1403                         wsp_disable(sc);
 1404                 usb_fifo_free_buffer(fifo);
 1405         }
 1406 
 1407         sc->sc_fflags &= ~(fflags & (FREAD | FWRITE));
 1408 }
 1409 
 1410 static void
 1411 wsp_fifo_start_read(struct usb_fifo *fifo)
 1412 {
 1413         struct wsp_softc *sc = usb_fifo_softc(fifo);
 1414 
 1415         wsp_start_read(sc);
 1416 }
 1417 
 1418 static void
 1419 wsp_fifo_stop_read(struct usb_fifo *fifo)
 1420 {
 1421         struct wsp_softc *sc = usb_fifo_softc(fifo);
 1422 
 1423 #ifdef EVDEV_SUPPORT
 1424         if ((sc->sc_state & WSP_EVDEV_OPENED) == 0)
 1425 #endif
 1426                 wsp_stop_read(sc);
 1427 }
 1428 
 1429 #ifdef EVDEV_SUPPORT
 1430 static int
 1431 wsp_ev_open(struct evdev_dev *evdev)
 1432 {
 1433         struct wsp_softc *sc = evdev_get_softc(evdev);
 1434         int rc = 0;
 1435 
 1436         mtx_lock(&sc->sc_mutex);
 1437         if (sc->sc_fflags == 0)
 1438                 rc = wsp_enable(sc);
 1439         if (rc == 0) {
 1440                 wsp_start_read(sc);
 1441                 sc->sc_state |= WSP_EVDEV_OPENED;
 1442         }
 1443         mtx_unlock(&sc->sc_mutex);
 1444 
 1445         return (rc);
 1446 }
 1447 
 1448 static int
 1449 wsp_ev_close(struct evdev_dev *evdev)
 1450 {
 1451         struct wsp_softc *sc = evdev_get_softc(evdev);
 1452 
 1453         mtx_lock(&sc->sc_mutex);
 1454         sc->sc_state &= ~WSP_EVDEV_OPENED;
 1455         if (sc->sc_fflags == 0)
 1456                 wsp_stop_read(sc);
 1457         mtx_unlock(&sc->sc_mutex);
 1458 
 1459         return (0);
 1460 }
 1461 #endif
 1462 
 1463 int
 1464 wsp_ioctl(struct usb_fifo *fifo, u_long cmd, void *addr, int fflags)
 1465 {
 1466         struct wsp_softc *sc = usb_fifo_softc(fifo);
 1467         mousemode_t mode;
 1468         int error = 0;
 1469 
 1470         mtx_lock(&sc->sc_mutex);
 1471 
 1472         switch (cmd) {
 1473         case MOUSE_GETHWINFO:
 1474                 *(mousehw_t *)addr = sc->sc_hw;
 1475                 break;
 1476         case MOUSE_GETMODE:
 1477                 *(mousemode_t *)addr = sc->sc_mode;
 1478                 break;
 1479         case MOUSE_SETMODE:
 1480                 mode = *(mousemode_t *)addr;
 1481 
 1482                 if (mode.level == -1)
 1483                         /* Don't change the current setting */
 1484                         ;
 1485                 else if ((mode.level < 0) || (mode.level > 1)) {
 1486                         error = EINVAL;
 1487                         goto done;
 1488                 }
 1489                 sc->sc_mode.level = mode.level;
 1490                 sc->sc_pollrate = mode.rate;
 1491                 sc->sc_hw.buttons = 3;
 1492 
 1493                 if (sc->sc_mode.level == 0) {
 1494                         sc->sc_mode.protocol = MOUSE_PROTO_MSC;
 1495                         sc->sc_mode.packetsize = MOUSE_MSC_PACKETSIZE;
 1496                         sc->sc_mode.syncmask[0] = MOUSE_MSC_SYNCMASK;
 1497                         sc->sc_mode.syncmask[1] = MOUSE_MSC_SYNC;
 1498                 } else if (sc->sc_mode.level == 1) {
 1499                         sc->sc_mode.protocol = MOUSE_PROTO_SYSMOUSE;
 1500                         sc->sc_mode.packetsize = MOUSE_SYS_PACKETSIZE;
 1501                         sc->sc_mode.syncmask[0] = MOUSE_SYS_SYNCMASK;
 1502                         sc->sc_mode.syncmask[1] = MOUSE_SYS_SYNC;
 1503                 }
 1504                 wsp_reset_buf(sc);
 1505                 break;
 1506         case MOUSE_GETLEVEL:
 1507                 *(int *)addr = sc->sc_mode.level;
 1508                 break;
 1509         case MOUSE_SETLEVEL:
 1510                 if (*(int *)addr < 0 || *(int *)addr > 1) {
 1511                         error = EINVAL;
 1512                         goto done;
 1513                 }
 1514                 sc->sc_mode.level = *(int *)addr;
 1515                 sc->sc_hw.buttons = 3;
 1516 
 1517                 if (sc->sc_mode.level == 0) {
 1518                         sc->sc_mode.protocol = MOUSE_PROTO_MSC;
 1519                         sc->sc_mode.packetsize = MOUSE_MSC_PACKETSIZE;
 1520                         sc->sc_mode.syncmask[0] = MOUSE_MSC_SYNCMASK;
 1521                         sc->sc_mode.syncmask[1] = MOUSE_MSC_SYNC;
 1522                 } else if (sc->sc_mode.level == 1) {
 1523                         sc->sc_mode.protocol = MOUSE_PROTO_SYSMOUSE;
 1524                         sc->sc_mode.packetsize = MOUSE_SYS_PACKETSIZE;
 1525                         sc->sc_mode.syncmask[0] = MOUSE_SYS_SYNCMASK;
 1526                         sc->sc_mode.syncmask[1] = MOUSE_SYS_SYNC;
 1527                 }
 1528                 wsp_reset_buf(sc);
 1529                 break;
 1530         case MOUSE_GETSTATUS:{
 1531                         mousestatus_t *status = (mousestatus_t *)addr;
 1532 
 1533                         *status = sc->sc_status;
 1534                         sc->sc_status.obutton = sc->sc_status.button;
 1535                         sc->sc_status.button = 0;
 1536                         sc->sc_status.dx = 0;
 1537                         sc->sc_status.dy = 0;
 1538                         sc->sc_status.dz = 0;
 1539 
 1540                         if (status->dx || status->dy || status->dz)
 1541                                 status->flags |= MOUSE_POSCHANGED;
 1542                         if (status->button != status->obutton)
 1543                                 status->flags |= MOUSE_BUTTONSCHANGED;
 1544                         break;
 1545                 }
 1546         default:
 1547                 error = ENOTTY;
 1548         }
 1549 
 1550 done:
 1551         mtx_unlock(&sc->sc_mutex);
 1552         return (error);
 1553 }
 1554 
 1555 static device_method_t wsp_methods[] = {
 1556         /* Device interface */
 1557         DEVMETHOD(device_probe, wsp_probe),
 1558         DEVMETHOD(device_attach, wsp_attach),
 1559         DEVMETHOD(device_detach, wsp_detach),
 1560         DEVMETHOD_END
 1561 };
 1562 
 1563 static driver_t wsp_driver = {
 1564         .name = WSP_DRIVER_NAME,
 1565         .methods = wsp_methods,
 1566         .size = sizeof(struct wsp_softc)
 1567 };
 1568 
 1569 DRIVER_MODULE(wsp, uhub, wsp_driver, NULL, NULL);
 1570 MODULE_DEPEND(wsp, usb, 1, 1, 1);
 1571 MODULE_DEPEND(wsp, hid, 1, 1, 1);
 1572 #ifdef EVDEV_SUPPORT
 1573 MODULE_DEPEND(wsp, evdev, 1, 1, 1);
 1574 #endif
 1575 MODULE_VERSION(wsp, 1);
 1576 USB_PNP_HOST_INFO(wsp_devs);

Cache object: 383ba3d2afc9f164851f9ad092c9bbe2


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