hgame.c

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2020 Vladimir Kondratyev <wulf@FreeBSD.org>
    5  * Copyright (c) 2020 Greg V <greg@unrelenting.technology>
    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 /*
   33  * Generic HID game controller (joystick/gamepad) driver,
   34  */
   35 
   36 #include <sys/param.h>
   37 #include <sys/bus.h>
   38 #include <sys/kernel.h>
   39 #include <sys/module.h>
   40 #include <sys/sysctl.h>
   41 
   42 #include <dev/evdev/input.h>
   43 #include <dev/evdev/evdev.h>
   44 
   45 #include <dev/hid/hgame.h>
   46 #include <dev/hid/hid.h>
   47 #include <dev/hid/hidbus.h>
   48 #include <dev/hid/hidquirk.h>
   49 #include <dev/hid/hidmap.h>
   50 
   51 #define HGAME_MAP_BRG(number_from, number_to, code)     \
   52         { HIDMAP_KEY_RANGE(HUP_BUTTON, number_from, number_to, code) }
   53 #define HGAME_MAP_ABS(usage, code)      \
   54         { HIDMAP_ABS(HUP_GENERIC_DESKTOP, HUG_##usage, code) }
   55 #define HGAME_MAP_CRG(usage_from, usage_to, callback)   \
   56         { HIDMAP_ANY_CB_RANGE(HUP_GENERIC_DESKTOP,      \
   57             HUG_##usage_from, HUG_##usage_to, callback) }
   58 #define HGAME_FINALCB(cb)       \
   59         { HIDMAP_FINAL_CB(&cb) }
   60 
   61 static const struct hidmap_item hgame_map[] = {
   62         HGAME_MAP_BRG(1, 16,            BTN_TRIGGER),
   63         HGAME_MAP_ABS(X,                ABS_X),
   64         HGAME_MAP_ABS(Y,                ABS_Y),
   65         HGAME_MAP_ABS(Z,                ABS_Z),
   66         HGAME_MAP_ABS(RX,               ABS_RX),
   67         HGAME_MAP_ABS(RY,               ABS_RY),
   68         HGAME_MAP_ABS(RZ,               ABS_RZ),
   69         HGAME_MAP_ABS(HAT_SWITCH,       ABS_HAT0X),
   70         HGAME_MAP_CRG(D_PAD_UP, D_PAD_LEFT, hgame_dpad_cb),
   71         HGAME_MAP_BRG(17, 57,           BTN_TRIGGER_HAPPY),
   72         HGAME_FINALCB(                  hgame_final_cb),
   73 };
   74 
   75 static const struct hid_device_id hgame_devs[] = {
   76         { HID_TLC(HUP_GENERIC_DESKTOP, HUG_JOYSTICK),
   77           HID_DRIVER_INFO(HUG_JOYSTICK) },
   78         { HID_TLC(HUP_GENERIC_DESKTOP, HUG_GAME_PAD),
   79           HID_DRIVER_INFO(HUG_GAME_PAD) },
   80 };
   81 
   82 /*
   83  * Emulate the hat switch report via the D-pad usages
   84  * found on XInput/XBox style devices
   85  */
   86 int
   87 hgame_dpad_cb(HIDMAP_CB_ARGS)
   88 {
   89         struct hgame_softc *sc = HIDMAP_CB_GET_SOFTC();
   90         struct evdev_dev *evdev = HIDMAP_CB_GET_EVDEV();
   91         int32_t data;
   92 
   93         switch (HIDMAP_CB_GET_STATE()) {
   94         case HIDMAP_CB_IS_ATTACHING:
   95                 HIDMAP_CB_UDATA64 = HID_GET_USAGE(ctx.hi->usage);
   96                 evdev_support_event(evdev, EV_ABS);
   97                 evdev_support_abs(evdev, ABS_HAT0X, -1, 1, 0, 0, 0);
   98                 evdev_support_abs(evdev, ABS_HAT0Y, -1, 1, 0, 0, 0);
   99                 break;
  100 
  101         case HIDMAP_CB_IS_RUNNING:
  102                 data = ctx.data;
  103                 switch (HIDMAP_CB_UDATA64) {
  104                 case HUG_D_PAD_UP:
  105                         if (sc->dpad_down)
  106                                 return (ENOMSG);
  107                         evdev_push_abs(evdev, ABS_HAT0Y, (data == 0) ? 0 : -1);
  108                         sc->dpad_up = (data != 0);
  109                         break;
  110                 case HUG_D_PAD_DOWN:
  111                         if (sc->dpad_up)
  112                                 return (ENOMSG);
  113                         evdev_push_abs(evdev, ABS_HAT0Y, (data == 0) ? 0 : 1);
  114                         sc->dpad_down = (data != 0);
  115                         break;
  116                 case HUG_D_PAD_RIGHT:
  117                         if (sc->dpad_left)
  118                                 return (ENOMSG);
  119                         evdev_push_abs(evdev, ABS_HAT0X, (data == 0) ? 0 : 1);
  120                         sc->dpad_right = (data != 0);
  121                         break;
  122                 case HUG_D_PAD_LEFT:
  123                         if (sc->dpad_right)
  124                                 return (ENOMSG);
  125                         evdev_push_abs(evdev, ABS_HAT0X, (data == 0) ? 0 : -1);
  126                         sc->dpad_left = (data != 0);
  127                         break;
  128                 }
  129                 break;
  130 
  131         default:
  132                 break;
  133         }
  134 
  135         return (0);
  136 }
  137 
  138 int
  139 hgame_final_cb(HIDMAP_CB_ARGS)
  140 {
  141         struct evdev_dev *evdev = HIDMAP_CB_GET_EVDEV();
  142 
  143         if (HIDMAP_CB_GET_STATE() == HIDMAP_CB_IS_ATTACHING)
  144                 evdev_support_prop(evdev, INPUT_PROP_DIRECT);
  145 
  146         /* Do not execute callback at interrupt handler and detach */
  147         return (ENOSYS);
  148 }
  149 
  150 static int
  151 hgame_probe(device_t dev)
  152 {
  153         const struct hid_device_info *hw = hid_get_device_info(dev);
  154         struct hgame_softc *sc = device_get_softc(dev);
  155         int error;
  156 
  157         if (hid_test_quirk(hw, HQ_IS_XBOX360GP))
  158                 return(ENXIO);
  159 
  160         error = HIDMAP_PROBE(&sc->hm, dev, hgame_devs, hgame_map, NULL);
  161         if (error > 0)
  162                 return (error);
  163 
  164         hidbus_set_desc(dev, hidbus_get_driver_info(dev) == HUG_GAME_PAD ?
  165             "Gamepad" : "Joystick");
  166 
  167         return (BUS_PROBE_GENERIC);
  168 }
  169 
  170 
  171 
  172 static int
  173 hgame_attach(device_t dev)
  174 {
  175         struct hgame_softc *sc = device_get_softc(dev);
  176 
  177         return (hidmap_attach(&sc->hm));
  178 }
  179 
  180 static int
  181 hgame_detach(device_t dev)
  182 {
  183         struct hgame_softc *sc = device_get_softc(dev);
  184 
  185         return (hidmap_detach(&sc->hm));
  186 }
  187 
  188 static devclass_t hgame_devclass;
  189 static device_method_t hgame_methods[] = {
  190         DEVMETHOD(device_probe,         hgame_probe),
  191         DEVMETHOD(device_attach,        hgame_attach),
  192         DEVMETHOD(device_detach,        hgame_detach),
  193 
  194         DEVMETHOD_END
  195 };
  196 
  197 DEFINE_CLASS_0(hgame, hgame_driver, hgame_methods, sizeof(struct hgame_softc));
  198 DRIVER_MODULE(hgame, hidbus, hgame_driver, hgame_devclass, NULL, 0);
  199 MODULE_DEPEND(hgame, hid, 1, 1, 1);
  200 MODULE_DEPEND(hgame, hidbus, 1, 1, 1);
  201 MODULE_DEPEND(hgame, hidmap, 1, 1, 1);
  202 MODULE_DEPEND(hgame, evdev, 1, 1, 1);
  203 MODULE_VERSION(hgame, 1);
  204 HID_PNP_INFO(hgame_devs);

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FreeBSD/Linux Kernel Cross Reference sys/dev/hid/hgame.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/hid/hgame.c