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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 | |
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41 | s32 gp2x_load_mmuhack() |
42 | { |
43 | s32 mmufd = open("/dev/mmuhack", O_RDWR); |
44 | |
45 | if(mmufd < 0) |
46 | { |
47 | system("/sbin/insmod mmuhack.o"); |
48 | mmufd = open("/dev/mmuhack", O_RDWR); |
49 | } |
50 | |
51 | if(mmufd < 0) |
52 | return -1; |
53 | |
54 | close(mmufd); |
55 | return 0; |
56 | } |
57 | |
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58 | #ifdef WIZ_BUILD |
59 | #include <linux/fb.h> |
60 | void *gpsp_gp2x_screen; |
61 | static u32 fb_paddr[3]; |
62 | static void *fb_vaddr[3]; |
63 | static u32 fb_work_buf; |
64 | const int fb_buf_count = 3; |
65 | static int fb_buf_use = 3; |
66 | |
67 | static void fb_video_init() |
68 | { |
69 | struct fb_fix_screeninfo fbfix; |
70 | int i, ret; |
71 | int fbdev; |
72 | |
73 | fbdev = open("/dev/fb0", O_RDWR); |
74 | if (fbdev < 0) { |
75 | perror("can't open fbdev"); |
76 | exit(1); |
77 | } |
78 | |
79 | ret = ioctl(fbdev, FBIOGET_FSCREENINFO, &fbfix); |
80 | if (ret == -1) |
81 | { |
82 | perror("ioctl(fbdev) failed"); |
83 | exit(1); |
84 | } |
85 | |
86 | printf("framebuffer: \"%s\" @ %08lx\n", fbfix.id, fbfix.smem_start); |
87 | fb_paddr[0] = fbfix.smem_start; |
88 | close(fbdev); |
89 | |
90 | fb_vaddr[0] = mmap(0, 320*240*2*fb_buf_count, PROT_READ|PROT_WRITE, |
91 | MAP_SHARED, gpsp_gp2x_dev, fb_paddr[0]); |
92 | if (fb_vaddr[0] == MAP_FAILED) |
93 | { |
94 | perror("mmap(fb_vaddr) failed"); |
95 | exit(1); |
96 | } |
97 | memset(fb_vaddr[0], 0, 320*240*2*fb_buf_count); |
98 | |
99 | printf(" %p -> %08x\n", fb_vaddr[0], fb_paddr[0]); |
100 | for (i = 1; i < fb_buf_count; i++) |
101 | { |
102 | fb_paddr[i] = fb_paddr[i-1] + 320*240*2; |
103 | fb_vaddr[i] = (char *)fb_vaddr[i-1] + 320*240*2; |
104 | printf(" %p -> %08x\n", fb_vaddr[i], fb_paddr[i]); |
105 | } |
106 | fb_work_buf = 0; |
107 | fb_buf_use = fb_buf_count; |
108 | |
109 | pollux_video_flip(); |
110 | warm_change_cb_upper(WCB_C_BIT|WCB_B_BIT, 1); |
111 | } |
112 | |
113 | void pollux_video_flip() |
114 | { |
115 | warm_cache_op_all(WOP_D_CLEAN); |
116 | gpsp_gp2x_memregl[0x406C>>2] = fb_paddr[fb_work_buf]; |
117 | gpsp_gp2x_memregl[0x4058>>2] |= 0x10; |
118 | fb_work_buf++; |
119 | if (fb_work_buf >= fb_buf_use) |
120 | fb_work_buf = 0; |
121 | gpsp_gp2x_screen = fb_vaddr[fb_work_buf]; |
122 | } |
123 | |
124 | void fb_use_buffers(int count) |
125 | { |
126 | if (count < 1) |
127 | count = 1; |
128 | else if (count > fb_buf_count) |
129 | count = fb_buf_count; |
130 | fb_buf_use = count; |
131 | } |
132 | |
133 | static void fb_video_exit() |
134 | { |
135 | /* switch to default fb mem */ |
136 | gpsp_gp2x_memregl[0x406C>>2] = fb_paddr[0]; |
137 | gpsp_gp2x_memregl[0x4058>>2] |= 0x10; |
138 | } |
139 | #endif |
140 | |
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141 | void gp2x_init() |
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142 | { |
143 | gpsp_gp2x_dev = open("/dev/mem", O_RDWR); |
144 | gpsp_gp2x_dev_audio = open("/dev/mixer", O_RDWR); |
145 | gpsp_gp2x_memregl = |
146 | (unsigned long *)mmap(0, 0x10000, PROT_READ|PROT_WRITE, MAP_SHARED, |
147 | gpsp_gp2x_dev, 0xc0000000); |
148 | gpsp_gp2x_memregs = (unsigned short *)gpsp_gp2x_memregl; |
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149 | #ifdef WIZ_BUILD |
150 | gpsp_gp2x_gpiodev = open("/dev/GPIO", O_RDONLY); |
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151 | warm_init(); |
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152 | fb_video_init(); |
153 | #endif |
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154 | |
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155 | // clear_screen(0); |
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156 | // main_cpuspeed(0, NULL); |
157 | gp2x_memregs = (void *)gpsp_gp2x_memregs; |
158 | cpuctrl_init(); |
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159 | gp2x_sound_volume(1); |
160 | } |
161 | |
162 | void gp2x_quit() |
163 | { |
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164 | #ifdef WIZ_BUILD |
165 | close(gpsp_gp2x_gpiodev); |
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166 | fb_video_exit(); |
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167 | #endif |
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168 | munmap((void *)gpsp_gp2x_memregl, 0x10000); |
169 | close(gpsp_gp2x_dev_audio); |
170 | close(gpsp_gp2x_dev); |
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171 | |
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172 | //chdir("/usr/gp2x"); |
173 | //execl("gp2xmenu", "gp2xmenu", NULL); |
174 | exit(0); |
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175 | } |
176 | |
177 | void gp2x_sound_volume(u32 volume_up) |
178 | { |
179 | u32 volume; |
180 | if((volume_up == 0) && (gp2x_audio_volume > 0)) |
181 | gp2x_audio_volume--; |
182 | |
183 | if((volume_up != 0) && (gp2x_audio_volume < 100)) |
184 | gp2x_audio_volume++; |
185 | |
186 | volume = (gp2x_audio_volume * 0x50) / 100; |
187 | volume = (gp2x_audio_volume << 8) | gp2x_audio_volume; |
188 | ioctl(gpsp_gp2x_dev_audio, SOUND_MIXER_WRITE_PCM, &volume); |
189 | } |
190 | |
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191 | u32 gpsp_gp2x_joystick_read(void) |
192 | { |
193 | #ifdef WIZ_BUILD |
194 | u32 value = 0; |
195 | read(gpsp_gp2x_gpiodev, &value, 4); |
196 | if(value & 0x02) |
197 | value |= 0x05; |
198 | if(value & 0x08) |
199 | value |= 0x14; |
200 | if(value & 0x20) |
201 | value |= 0x50; |
202 | if(value & 0x80) |
203 | value |= 0x41; |
204 | return value; |
205 | #else |
206 | u32 value = (gpsp_gp2x_memregs[0x1198 >> 1] & 0x00FF); |
207 | |
208 | if(value == 0xFD) |
209 | value = 0xFA; |
210 | if(value == 0xF7) |
211 | value = 0xEB; |
212 | if(value == 0xDF) |
213 | value = 0xAF; |
214 | if(value == 0x7F) |
215 | value = 0xBE; |
216 | |
217 | return ~((gpsp_gp2x_memregs[0x1184 >> 1] & 0xFF00) | value | |
218 | (gpsp_gp2x_memregs[0x1186 >> 1] << 16)); |
219 | #endif |
220 | } |
221 | |
222 | #ifdef WIZ_BUILD |
223 | void cpuctrl_init(void) |
224 | { |
225 | } |
226 | |
227 | void set_FCLK(u32 MHZ) |
228 | { |
229 | } |
230 | #endif |
231 | |