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
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
|
// Copyright 2015 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <array>
#ifndef _MSC_VER
#include <cstddef>
#endif
#include "core/settings.h"
#include "common/bit_field.h"
#include "common/common_funcs.h"
#include "common/common_types.h"
namespace Service {
class Interface;
namespace HID {
/**
* Structure of a Pad controller state.
*/
struct PadState {
union {
u32 hex;
BitField<0, 1, u32> a;
BitField<1, 1, u32> b;
BitField<2, 1, u32> select;
BitField<3, 1, u32> start;
BitField<4, 1, u32> right;
BitField<5, 1, u32> left;
BitField<6, 1, u32> up;
BitField<7, 1, u32> down;
BitField<8, 1, u32> r;
BitField<9, 1, u32> l;
BitField<10, 1, u32> x;
BitField<11, 1, u32> y;
BitField<14, 1, u32> zl;
BitField<15, 1, u32> zr;
BitField<20, 1, u32> touch;
BitField<24, 1, u32> c_right;
BitField<25, 1, u32> c_left;
BitField<26, 1, u32> c_up;
BitField<27, 1, u32> c_down;
BitField<28, 1, u32> circle_right;
BitField<29, 1, u32> circle_left;
BitField<30, 1, u32> circle_up;
BitField<31, 1, u32> circle_down;
};
};
/**
* Structure of a single entry of Pad state history within HID shared memory
*/
struct PadDataEntry {
PadState current_state;
PadState delta_additions;
PadState delta_removals;
s16 circle_pad_x;
s16 circle_pad_y;
};
/**
* Structure of a single entry of touch state history within HID shared memory
*/
struct TouchDataEntry {
u16 x; ///< Y-coordinate of a touchpad press on the lower screen
u16 y; ///< X-coordinate of a touchpad press on the lower screen
BitField<0, 7, u32> valid; ///< Set to 1 when this entry contains actual X/Y data, otherwise 0
};
/**
* Structure of data stored in HID shared memory
*/
struct SharedMem {
/// Pad data, this is used for buttons and the circle pad
struct {
s64 index_reset_ticks; ///< CPU tick count for when HID module updated entry index 0
s64 index_reset_ticks_previous; ///< Previous `index_reset_ticks`
u32 index; ///< Index of the last updated pad state entry
INSERT_PADDING_WORDS(0x2);
PadState current_state; ///< Current state of the pad buttons
// TODO(bunnei): Implement `raw_circle_pad_data` field
u32 raw_circle_pad_data; ///< Raw (analog) circle pad data, before being converted
INSERT_PADDING_WORDS(0x1);
std::array<PadDataEntry, 8> entries; ///< Last 8 pad entries
} pad;
/// Touchpad data, this is used for touchpad input
struct {
s64 index_reset_ticks; ///< CPU tick count for when HID module updated entry index 0
s64 index_reset_ticks_previous; ///< Previous `index_reset_ticks`
u32 index; ///< Index of the last updated touch entry
INSERT_PADDING_WORDS(0x1);
// TODO(bunnei): Implement `raw_entry` field
TouchDataEntry raw_entry; ///< Raw (analog) touch data, before being converted
std::array<TouchDataEntry, 8> entries; ///< Last 8 touch entries, in pixel coordinates
} touch;
};
// TODO: MSVC does not support using offsetof() on non-static data members even though this
// is technically allowed since C++11. This macro should be enabled once MSVC adds
// support for that.
#ifndef _MSC_VER
#define ASSERT_REG_POSITION(field_name, position) \
static_assert(offsetof(SharedMem, field_name) == position * 4, \
"Field "#field_name" has invalid position")
ASSERT_REG_POSITION(pad.index_reset_ticks, 0x0);
ASSERT_REG_POSITION(touch.index_reset_ticks, 0x2A);
#undef ASSERT_REG_POSITION
#endif // !defined(_MSC_VER)
// Pre-defined PadStates for single button presses
const PadState PAD_NONE = {{0}};
const PadState PAD_A = {{1u << 0}};
const PadState PAD_B = {{1u << 1}};
const PadState PAD_SELECT = {{1u << 2}};
const PadState PAD_START = {{1u << 3}};
const PadState PAD_RIGHT = {{1u << 4}};
const PadState PAD_LEFT = {{1u << 5}};
const PadState PAD_UP = {{1u << 6}};
const PadState PAD_DOWN = {{1u << 7}};
const PadState PAD_R = {{1u << 8}};
const PadState PAD_L = {{1u << 9}};
const PadState PAD_X = {{1u << 10}};
const PadState PAD_Y = {{1u << 11}};
const PadState PAD_ZL = {{1u << 14}};
const PadState PAD_ZR = {{1u << 15}};
const PadState PAD_TOUCH = {{1u << 20}};
const PadState PAD_C_RIGHT = {{1u << 24}};
const PadState PAD_C_LEFT = {{1u << 25}};
const PadState PAD_C_UP = {{1u << 26}};
const PadState PAD_C_DOWN = {{1u << 27}};
const PadState PAD_CIRCLE_RIGHT = {{1u << 28}};
const PadState PAD_CIRCLE_LEFT = {{1u << 29}};
const PadState PAD_CIRCLE_UP = {{1u << 30}};
const PadState PAD_CIRCLE_DOWN = {{1u << 31}};
extern const std::array<Service::HID::PadState, Settings::NativeInput::NUM_INPUTS> pad_mapping;
/**
* HID::GetIPCHandles service function
* Inputs:
* None
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
* 2 : IPC Command Structure translate-header
* 3 : Handle to HID shared memory
* 4 : Event signaled by HID
* 5 : Event signaled by HID
* 6 : Event signaled by HID
* 7 : Gyroscope event
* 8 : Event signaled by HID
*/
void GetIPCHandles(Interface* self);
/**
* HID::EnableAccelerometer service function
* Inputs:
* None
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
*/
void EnableAccelerometer(Interface* self);
/**
* HID::DisableAccelerometer service function
* Inputs:
* None
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
*/
void DisableAccelerometer(Interface* self);
/**
* HID::EnableGyroscopeLow service function
* Inputs:
* None
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
*/
void EnableGyroscopeLow(Interface* self);
/**
* HID::DisableGyroscopeLow service function
* Inputs:
* None
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
*/
void DisableGyroscopeLow(Interface* self);
/**
* HID::GetSoundVolume service function
* Inputs:
* None
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
* 2 : u8 output value
*/
void GetSoundVolume(Interface* self);
/// Checks for user input updates
void Update();
/// Initialize HID service
void Init();
/// Shutdown HID service
void Shutdown();
}
}
|
