kernel - Fix excessive call stack depth on stuck interrupt
[dragonfly.git] / sys / kern / subr_input.c
blobf0e432a7a9e778f2b17822803ecfd9465bb61bf1
1 /*
2 * Copyright (c) 2014 The DragonFly Project. All rights reserved.
4 * This code is derived from software contributed to The DragonFly Project
5 * by Matthew Dillon <dillon@backplane.com>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
16 * distribution.
17 * 3. Neither the name of The DragonFly Project nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific, prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
35 * Implement a linux-compatible user even input interface. This is used by
36 * various devices to supply an event stream and ioctls to userland.
39 #include <sys/param.h>
40 #include <sys/queue.h>
41 #include <sys/malloc.h>
42 #include <sys/kernel.h>
43 #include <sys/bus_private.h>
44 #include <sys/systm.h>
45 #include <sys/uio.h>
46 #include <sys/ioccom.h>
47 #include <sys/machintr.h>
49 #include <machine/stdarg.h> /* for device_printf() */
51 #include <sys/thread2.h>
52 #include <sys/input.h>
54 MALLOC_DEFINE(M_INPUT, "input", "Input Event");
56 void
57 inputev_init(inputev_t *iev, const char *id)
61 void
62 inputev_register(inputev_t *iev)
66 void
67 inputev_deregister(inputev_t *iev)
71 void
72 inputev_mt_slot(inputev_t *iev, int slot)
76 void
77 inputev_mt_sync_frame(inputev_t *iev)
81 void
82 inputev_sync(inputev_t *iev)
86 void
87 inputev_set_evbit(inputev_t *iev, int bit)
91 void
92 inputev_set_keybit(inputev_t *iev, int bit)
96 void
97 inputev_set_propbit(inputev_t *iev, int bit)
101 void
102 inputev_set_abs_params(inputev_t *iev, u_int axis,
103 int min, int max, int fuzz, int flat)
107 void
108 inputev_set_res(inputev_t *iev, u_int axis, int val)
112 void
113 inputev_mt_report_slot_state(inputev_t *iev, u_int code, int good)
117 void
118 inputev_report_key(inputev_t *iev, u_int code, int val)
121 /* EV_KEY */
123 void
124 inputev_report_rel(inputev_t *iev, u_int code, int val)
127 /* EV_REL */
129 void
130 inputev_report_abs(inputev_t *iev, u_int code, int val)
133 /* EV_ABS */
136 * Handle ioctls
139 inputev_ioctl(inputev_t *iev, u_long cmd, void *data)
141 return ENOTTY;
145 * Supply a data stream to requestors
148 inputev_read(inputev_t *iev, struct uio *uio, int ioflag)
150 return EINVAL;