FreeBSD/Linux Kernel Cross Reference
sys/dev/hid/hgame.c
1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2020 Vladimir Kondratyev <wulf@FreeBSD.org>
5 * Copyright (c) 2020 Val Packett <val@packett.cool>
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_GCB(usage, callback) \
56 { HIDMAP_ANY_CB(HUP_GENERIC_DESKTOP, HUG_##usage, callback) }
57 #define HGAME_MAP_CRG(usage_from, usage_to, callback) \
58 { HIDMAP_ANY_CB_RANGE(HUP_GENERIC_DESKTOP, \
59 HUG_##usage_from, HUG_##usage_to, callback) }
60 #define HGAME_FINALCB(cb) \
61 { HIDMAP_FINAL_CB(&cb) }
62
63 static const struct hidmap_item hgame_map[] = {
64 HGAME_MAP_BRG(1, 16, BTN_TRIGGER),
65 HGAME_MAP_ABS(X, ABS_X),
66 HGAME_MAP_ABS(Y, ABS_Y),
67 HGAME_MAP_ABS(Z, ABS_Z),
68 HGAME_MAP_ABS(RX, ABS_RX),
69 HGAME_MAP_ABS(RY, ABS_RY),
70 HGAME_MAP_ABS(RZ, ABS_RZ),
71 HGAME_MAP_GCB(HAT_SWITCH, hgame_hat_switch_cb),
72 HGAME_MAP_CRG(D_PAD_UP, D_PAD_LEFT, hgame_dpad_cb),
73 HGAME_MAP_BRG(17, 57, BTN_TRIGGER_HAPPY),
74 HGAME_FINALCB( hgame_final_cb),
75 };
76
77 static const struct hid_device_id hgame_devs[] = {
78 { HID_TLC(HUP_GENERIC_DESKTOP, HUG_JOYSTICK),
79 HID_DRIVER_INFO(HUG_JOYSTICK) },
80 { HID_TLC(HUP_GENERIC_DESKTOP, HUG_GAME_PAD),
81 HID_DRIVER_INFO(HUG_GAME_PAD) },
82 };
83
84 int
85 hgame_hat_switch_cb(HIDMAP_CB_ARGS)
86 {
87 static const struct { int32_t x; int32_t y; } hat_switch_map[] = {
88 {0, -1}, {1, -1}, {1, 0}, {1, 1}, {0, 1}, {-1, 1}, {-1, 0},
89 {-1, -1},{0, 0}
90 };
91 struct evdev_dev *evdev = HIDMAP_CB_GET_EVDEV();
92 u_int idx;
93
94 switch (HIDMAP_CB_GET_STATE()) {
95 case HIDMAP_CB_IS_ATTACHING:
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 idx = MIN(nitems(hat_switch_map) - 1, (u_int)ctx.data);
103 evdev_push_abs(evdev, ABS_HAT0X, hat_switch_map[idx].x);
104 evdev_push_abs(evdev, ABS_HAT0Y, hat_switch_map[idx].y);
105 break;
106
107 default:
108 break;
109 }
110
111 return (0);
112 }
113
114 /*
115 * Emulate the hat switch report via the D-pad usages
116 * found on XInput/XBox style devices
117 */
118 int
119 hgame_dpad_cb(HIDMAP_CB_ARGS)
120 {
121 struct hgame_softc *sc = HIDMAP_CB_GET_SOFTC();
122 struct evdev_dev *evdev = HIDMAP_CB_GET_EVDEV();
123 int32_t data;
124
125 switch (HIDMAP_CB_GET_STATE()) {
126 case HIDMAP_CB_IS_ATTACHING:
127 HIDMAP_CB_UDATA64 = HID_GET_USAGE(ctx.hi->usage);
128 evdev_support_event(evdev, EV_ABS);
129 evdev_support_abs(evdev, ABS_HAT0X, -1, 1, 0, 0, 0);
130 evdev_support_abs(evdev, ABS_HAT0Y, -1, 1, 0, 0, 0);
131 break;
132
133 case HIDMAP_CB_IS_RUNNING:
134 data = ctx.data;
135 switch (HIDMAP_CB_UDATA64) {
136 case HUG_D_PAD_UP:
137 if (sc->dpad_down)
138 return (ENOMSG);
139 evdev_push_abs(evdev, ABS_HAT0Y, (data == 0) ? 0 : -1);
140 sc->dpad_up = (data != 0);
141 break;
142 case HUG_D_PAD_DOWN:
143 if (sc->dpad_up)
144 return (ENOMSG);
145 evdev_push_abs(evdev, ABS_HAT0Y, (data == 0) ? 0 : 1);
146 sc->dpad_down = (data != 0);
147 break;
148 case HUG_D_PAD_RIGHT:
149 if (sc->dpad_left)
150 return (ENOMSG);
151 evdev_push_abs(evdev, ABS_HAT0X, (data == 0) ? 0 : 1);
152 sc->dpad_right = (data != 0);
153 break;
154 case HUG_D_PAD_LEFT:
155 if (sc->dpad_right)
156 return (ENOMSG);
157 evdev_push_abs(evdev, ABS_HAT0X, (data == 0) ? 0 : -1);
158 sc->dpad_left = (data != 0);
159 break;
160 }
161 break;
162
163 default:
164 break;
165 }
166
167 return (0);
168 }
169
170 int
171 hgame_final_cb(HIDMAP_CB_ARGS)
172 {
173 struct evdev_dev *evdev = HIDMAP_CB_GET_EVDEV();
174
175 if (HIDMAP_CB_GET_STATE() == HIDMAP_CB_IS_ATTACHING)
176 evdev_support_prop(evdev, INPUT_PROP_DIRECT);
177
178 /* Do not execute callback at interrupt handler and detach */
179 return (ENOSYS);
180 }
181
182 static int
183 hgame_probe(device_t dev)
184 {
185 const struct hid_device_info *hw = hid_get_device_info(dev);
186 struct hgame_softc *sc = device_get_softc(dev);
187 int error;
188
189 if (hid_test_quirk(hw, HQ_IS_XBOX360GP))
190 return(ENXIO);
191
192 error = HIDMAP_PROBE(&sc->hm, dev, hgame_devs, hgame_map, NULL);
193 if (error > 0)
194 return (error);
195
196 hidbus_set_desc(dev, hidbus_get_driver_info(dev) == HUG_GAME_PAD ?
197 "Gamepad" : "Joystick");
198
199 return (BUS_PROBE_GENERIC);
200 }
201
202
203
204 static int
205 hgame_attach(device_t dev)
206 {
207 struct hgame_softc *sc = device_get_softc(dev);
208
209 return (hidmap_attach(&sc->hm));
210 }
211
212 static int
213 hgame_detach(device_t dev)
214 {
215 struct hgame_softc *sc = device_get_softc(dev);
216
217 return (hidmap_detach(&sc->hm));
218 }
219
220 static device_method_t hgame_methods[] = {
221 DEVMETHOD(device_probe, hgame_probe),
222 DEVMETHOD(device_attach, hgame_attach),
223 DEVMETHOD(device_detach, hgame_detach),
224
225 DEVMETHOD_END
226 };
227
228 DEFINE_CLASS_0(hgame, hgame_driver, hgame_methods, sizeof(struct hgame_softc));
229 DRIVER_MODULE(hgame, hidbus, hgame_driver, NULL, NULL);
230 MODULE_DEPEND(hgame, hid, 1, 1, 1);
231 MODULE_DEPEND(hgame, hidbus, 1, 1, 1);
232 MODULE_DEPEND(hgame, hidmap, 1, 1, 1);
233 MODULE_DEPEND(hgame, evdev, 1, 1, 1);
234 MODULE_VERSION(hgame, 1);
235 HID_PNP_INFO(hgame_devs);
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