1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
|
/*
* Copyright (c) 2015 Etienne Gemsa <etienne.gemsa@lse.epita.fr>
* Copyright (c) 2015-2016 Dmitry V. Levin <ldv@strace.io>
* Copyright (c) 2015-2021 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#include "defs.h"
#include DEF_MPERS_TYPE(struct_ff_effect)
#include <linux/ioctl.h>
#include <linux/input.h>
typedef struct ff_effect struct_ff_effect;
#include MPERS_DEFS
static void
print_ff_envelope(const MPERS_PTR_ARG(struct ff_envelope *) const arg)
{
const struct ff_envelope *const p = arg;
tprint_struct_begin();
PRINT_FIELD_U(*p, attack_length);
tprint_struct_next();
PRINT_FIELD_U(*p, attack_level);
tprint_struct_next();
PRINT_FIELD_U(*p, fade_length);
tprint_struct_next();
PRINT_FIELD_X(*p, fade_level);
tprint_struct_end();
}
#define DECL_print_ff(name_) \
print_ff_ ## name_(const typeof_field(struct_ff_effect, name_) *const p)
static void
DECL_print_ff(trigger)
{
tprint_struct_begin();
PRINT_FIELD_U(*p, button);
tprint_struct_next();
PRINT_FIELD_U(*p, interval);
tprint_struct_end();
}
static void
DECL_print_ff(replay)
{
tprint_struct_begin();
PRINT_FIELD_U(*p, length);
tprint_struct_next();
PRINT_FIELD_U(*p, delay);
tprint_struct_end();
}
#define PRINT_FIELD_FF_EFFECT(where_, field_) \
do { \
tprints_field_name(#field_); \
print_ff_ ## field_(&((where_).field_)); \
} while (0)
#define DECL_print_ff_effect(name_) \
print_ff_ ## name_ ## _effect(const typeof_field(struct_ff_effect, u.name_) *const p)
static void
DECL_print_ff_effect(constant)
{
tprint_struct_begin();
PRINT_FIELD_D(*p, level);
tprint_struct_next();
PRINT_FIELD_OBJ_PTR(*p, envelope, print_ff_envelope);
tprint_struct_end();
}
static void
DECL_print_ff_effect(ramp)
{
tprint_struct_begin();
PRINT_FIELD_D(*p, start_level);
tprint_struct_next();
PRINT_FIELD_D(*p, end_level);
tprint_struct_next();
PRINT_FIELD_OBJ_PTR(*p, envelope, print_ff_envelope);
tprint_struct_end();
}
static void
DECL_print_ff_effect(periodic)
{
tprint_struct_begin();
PRINT_FIELD_U(*p, waveform);
tprint_struct_next();
PRINT_FIELD_U(*p, period);
tprint_struct_next();
PRINT_FIELD_D(*p, magnitude);
tprint_struct_next();
PRINT_FIELD_D(*p, offset);
tprint_struct_next();
PRINT_FIELD_U(*p, phase);
tprint_struct_next();
PRINT_FIELD_OBJ_PTR(*p, envelope, print_ff_envelope);
tprint_struct_next();
PRINT_FIELD_U(*p, custom_len);
tprint_struct_next();
PRINT_FIELD_PTR(*p, custom_data);
tprint_struct_end();
}
static void
DECL_print_ff_effect(rumble)
{
tprint_struct_begin();
PRINT_FIELD_U(*p, strong_magnitude);
tprint_struct_next();
PRINT_FIELD_U(*p, weak_magnitude);
tprint_struct_end();
}
#define PRINT_FIELD_FF_TYPE_EFFECT(where_, field_) \
do { \
tprints_field_name(#field_); \
print_ff_ ## field_ ## _effect(&((where_).field_)); \
} while (0)
static int
ff_effect_ioctl(struct tcb *const tcp, const kernel_ulong_t arg)
{
struct_ff_effect ffe;
if (umove_or_printaddr(tcp, arg, &ffe))
return RVAL_IOCTL_DECODED;
tprint_struct_begin();
PRINT_FIELD_OBJ_VAL(ffe, type, print_evdev_ff_type);
tprint_struct_next();
PRINT_FIELD_D(ffe, id);
tprint_struct_next();
PRINT_FIELD_U(ffe, direction);
tprint_struct_next();
if (abbrev(tcp)) {
tprint_more_data_follows();
tprint_struct_end();
return RVAL_IOCTL_DECODED;
}
PRINT_FIELD_FF_EFFECT(ffe, trigger);
tprint_struct_next();
PRINT_FIELD_FF_EFFECT(ffe, replay);
switch (ffe.type) {
case FF_CONSTANT:
tprint_struct_next();
PRINT_FIELD_FF_TYPE_EFFECT(ffe.u, constant);
break;
case FF_RAMP:
tprint_struct_next();
PRINT_FIELD_FF_TYPE_EFFECT(ffe.u, ramp);
break;
case FF_PERIODIC:
tprint_struct_next();
PRINT_FIELD_FF_TYPE_EFFECT(ffe.u, periodic);
break;
case FF_RUMBLE:
tprint_struct_next();
PRINT_FIELD_FF_TYPE_EFFECT(ffe.u, rumble);
break;
default:
break;
}
tprint_struct_end();
return RVAL_IOCTL_DECODED;
}
MPERS_PRINTER_DECL(int, evdev_write_ioctl_mpers, struct tcb *const tcp,
const unsigned int code, const kernel_ulong_t arg)
{
switch (code) {
case EVIOCSFF:
return ff_effect_ioctl(tcp, arg);
default:
return RVAL_DECODED;
}
}
|
