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
|
/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
/*
* GP2X Wiz: Hardware Stuff.
*
*/
// Disable symbol overrides so that we can use system headers.
#define FORBIDDEN_SYMBOL_ALLOW_ALL
#include "backends/platform/gph/gph-hw.h"
#include <fcntl.h>
#include <signal.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/mman.h>
#include <sys/ioctl.h>
#include <sys/soundcard.h>
#include <unistd.h>
namespace WIZ_HW {
enum {
VOLUME_NOCHG = 0,
VOLUME_DOWN = 1,
VOLUME_UP = 2,
VOLUME_CHANGE_RATE = 8,
VOLUME_MIN = 0,
VOLUME_INITIAL = 60,
VOLUME_MAX = 100
};
int volumeLevel = VOLUME_INITIAL;
void deviceInit() {
}
void deviceDeinit() {
}
void mixerMoveVolume(int direction) {
if (volumeLevel <= 10) {
if (direction == VOLUME_UP) volumeLevel += VOLUME_CHANGE_RATE / 2;
if (direction == VOLUME_DOWN) volumeLevel -= VOLUME_CHANGE_RATE / 2;
} else {
if (direction == VOLUME_UP) volumeLevel += VOLUME_CHANGE_RATE;
if (direction == VOLUME_DOWN) volumeLevel -= VOLUME_CHANGE_RATE;
}
if (volumeLevel < VOLUME_MIN) volumeLevel = VOLUME_MIN;
if (volumeLevel > VOLUME_MAX) volumeLevel = VOLUME_MAX;
unsigned long soundDev = open("/dev/mixer", O_RDWR);
if (soundDev) {
int vol = ((volumeLevel << 8) | volumeLevel);
ioctl(soundDev, SOUND_MIXER_WRITE_PCM, &vol);
close(soundDev);
}
}
} /* namespace WIZ_HW */
namespace GPH {
enum {
/* Touchscreen TapMode */
TAPMODE_LEFT = 0,
TAPMODE_RIGHT = 1,
TAPMODE_HOVER = 2
};
int tapmodeLevel = TAPMODE_LEFT;
void ToggleTapMode() {
if (tapmodeLevel == TAPMODE_LEFT) {
tapmodeLevel = TAPMODE_RIGHT;
} else if (tapmodeLevel == TAPMODE_RIGHT) {
tapmodeLevel = TAPMODE_HOVER;
} else if (tapmodeLevel == TAPMODE_HOVER) {
tapmodeLevel = TAPMODE_LEFT;
} else {
tapmodeLevel = TAPMODE_LEFT;
}
}
} /* namespace GPH */
|
