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1 | /* Parts used from cpuctrl */ |
2 | /* cpuctrl for GP2X |
3 | Copyright (C) 2005 Hermes/PS2Reality |
4 | |
5 | This program is free software; you can redistribute it and/or modify |
6 | it under the terms of the GNU General Public License as published by |
7 | the Free Software Foundation; either version 2 of the License, or |
8 | (at your option) any later version. |
9 | |
10 | This program is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | GNU General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU General Public License |
16 | along with this program; if not, write to the Free Software |
17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
18 | |
19 | */ |
20 | |
21 | |
22 | #include <sys/mman.h> |
23 | #include <sys/ioctl.h> |
24 | #include <sys/soundcard.h> |
25 | #include "../common.h" |
26 | #include "gp2x.h" |
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27 | #include "warm.h" |
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28 | |
29 | extern int main_cpuspeed(int argc, char *argv[]); |
30 | extern SDL_Surface* screen; |
31 | |
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32 | u32 gp2x_audio_volume = 74/2; |
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33 | u32 gpsp_gp2x_dev_audio = 0; |
34 | u32 gpsp_gp2x_dev = 0; |
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35 | u32 gpsp_gp2x_gpiodev = 0; |
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36 | |
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37 | static volatile u16 *gpsp_gp2x_memregs; |
38 | static volatile u32 *gpsp_gp2x_memregl; |
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39 | unsigned short *gp2x_memregs; |
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40 | |
41 | static volatile u16 *MEM_REG; |
42 | |
43 | s32 gp2x_load_mmuhack() |
44 | { |
45 | s32 mmufd = open("/dev/mmuhack", O_RDWR); |
46 | |
47 | if(mmufd < 0) |
48 | { |
49 | system("/sbin/insmod mmuhack.o"); |
50 | mmufd = open("/dev/mmuhack", O_RDWR); |
51 | } |
52 | |
53 | if(mmufd < 0) |
54 | return -1; |
55 | |
56 | close(mmufd); |
57 | return 0; |
58 | } |
59 | |
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60 | void gp2x_init() |
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61 | { |
62 | gpsp_gp2x_dev = open("/dev/mem", O_RDWR); |
63 | gpsp_gp2x_dev_audio = open("/dev/mixer", O_RDWR); |
64 | gpsp_gp2x_memregl = |
65 | (unsigned long *)mmap(0, 0x10000, PROT_READ|PROT_WRITE, MAP_SHARED, |
66 | gpsp_gp2x_dev, 0xc0000000); |
67 | gpsp_gp2x_memregs = (unsigned short *)gpsp_gp2x_memregl; |
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68 | #ifdef WIZ_BUILD |
69 | gpsp_gp2x_gpiodev = open("/dev/GPIO", O_RDONLY); |
70 | #endif |
71 | warm_init(); |
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72 | |
73 | clear_screen(0); |
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74 | // main_cpuspeed(0, NULL); |
75 | gp2x_memregs = (void *)gpsp_gp2x_memregs; |
76 | cpuctrl_init(); |
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77 | gp2x_sound_volume(1); |
78 | } |
79 | |
80 | void gp2x_quit() |
81 | { |
82 | munmap((void *)gpsp_gp2x_memregl, 0x10000); |
83 | close(gpsp_gp2x_dev_audio); |
84 | close(gpsp_gp2x_dev); |
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85 | #ifdef WIZ_BUILD |
86 | close(gpsp_gp2x_gpiodev); |
87 | #endif |
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88 | |
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89 | //chdir("/usr/gp2x"); |
90 | //execl("gp2xmenu", "gp2xmenu", NULL); |
91 | exit(0); |
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92 | } |
93 | |
94 | void gp2x_sound_volume(u32 volume_up) |
95 | { |
96 | u32 volume; |
97 | if((volume_up == 0) && (gp2x_audio_volume > 0)) |
98 | gp2x_audio_volume--; |
99 | |
100 | if((volume_up != 0) && (gp2x_audio_volume < 100)) |
101 | gp2x_audio_volume++; |
102 | |
103 | volume = (gp2x_audio_volume * 0x50) / 100; |
104 | volume = (gp2x_audio_volume << 8) | gp2x_audio_volume; |
105 | ioctl(gpsp_gp2x_dev_audio, SOUND_MIXER_WRITE_PCM, &volume); |
106 | } |
107 | |
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108 | u32 gpsp_gp2x_joystick_read(void) |
109 | { |
110 | #ifdef WIZ_BUILD |
111 | u32 value = 0; |
112 | read(gpsp_gp2x_gpiodev, &value, 4); |
113 | if(value & 0x02) |
114 | value |= 0x05; |
115 | if(value & 0x08) |
116 | value |= 0x14; |
117 | if(value & 0x20) |
118 | value |= 0x50; |
119 | if(value & 0x80) |
120 | value |= 0x41; |
121 | return value; |
122 | #else |
123 | u32 value = (gpsp_gp2x_memregs[0x1198 >> 1] & 0x00FF); |
124 | |
125 | if(value == 0xFD) |
126 | value = 0xFA; |
127 | if(value == 0xF7) |
128 | value = 0xEB; |
129 | if(value == 0xDF) |
130 | value = 0xAF; |
131 | if(value == 0x7F) |
132 | value = 0xBE; |
133 | |
134 | return ~((gpsp_gp2x_memregs[0x1184 >> 1] & 0xFF00) | value | |
135 | (gpsp_gp2x_memregs[0x1186 >> 1] << 16)); |
136 | #endif |
137 | } |
138 | |
139 | #ifdef WIZ_BUILD |
140 | void cpuctrl_init(void) |
141 | { |
142 | } |
143 | |
144 | void set_FCLK(u32 MHZ) |
145 | { |
146 | } |
147 | #endif |
148 | |