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1 | \r |
2 | #include <stdio.h>\r |
3 | #include <stdlib.h>\r |
4 | #include <stdarg.h>\r |
5 | #include <string.h>\r |
6 | #include <unistd.h>\r |
7 | #include <sys/mman.h>\r |
8 | #include <sys/types.h>\r |
9 | #include <sys/stat.h>\r |
10 | #include <sys/ioctl.h>\r |
11 | #include <sys/soundcard.h>\r |
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12 | #include <linux/fb.h>\r |
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13 | #include <fcntl.h>\r |
14 | #include <errno.h>\r |
15 | \r |
16 | #include "../gp2x/gp2x.h"\r |
17 | #include "../gp2x/usbjoy.h"\r |
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18 | #include "../common/arm_linux.h"\r |
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19 | \r |
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20 | static volatile unsigned int *memregs = MAP_FAILED;\r |
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21 | //static\r |
22 | int memdev = 0;\r |
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23 | static int fbdev = -1, sounddev = -1, mixerdev = -1, touchdev = -1;\r |
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24 | static int touchcal[7] = { 6203, 0, -1501397, 0, -4200, 16132680, 65536 };\r |
25 | \r |
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26 | //#define SCREEN_MAP_SIZE (((800*(480+11)*2)+0xfff)&~0xfff)\r |
27 | #define SCREEN_MAP_SIZE (800*480*2)\r |
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28 | static void *screen = MAP_FAILED;\r |
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29 | void *gp2x_screen;\r |
30 | \r |
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31 | \r |
32 | /* video stuff */\r |
33 | void gp2x_video_flip(void)\r |
34 | {\r |
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35 | }\r |
36 | \r |
37 | /* doulblebuffered flip */\r |
38 | void gp2x_video_flip2(void)\r |
39 | {\r |
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40 | }\r |
41 | \r |
42 | \r |
43 | void gp2x_video_changemode2(int bpp)\r |
44 | {\r |
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45 | }\r |
46 | \r |
47 | \r |
48 | void gp2x_video_changemode(int bpp)\r |
49 | {\r |
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50 | }\r |
51 | \r |
52 | \r |
53 | void gp2x_video_setpalette(int *pal, int len)\r |
54 | {\r |
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55 | }\r |
56 | \r |
57 | \r |
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58 | void gp2x_video_RGB_setscaling(int ln_offs, int W, int H)\r |
59 | {\r |
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60 | }\r |
61 | \r |
62 | \r |
63 | void gp2x_video_wait_vsync(void)\r |
64 | {\r |
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65 | }\r |
66 | \r |
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67 | void gp2x_video_flush_cache(void)\r |
68 | {\r |
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69 | // cache_flush_d_inval_i(gp2x_screen, (char *)gp2x_screen + 320*240*2, 0);\r |
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70 | }\r |
71 | \r |
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72 | void gp2x_memcpy_buffers(int buffers, void *data, int offset, int len)\r |
73 | {\r |
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74 | }\r |
75 | \r |
76 | \r |
77 | void gp2x_memcpy_all_buffers(void *data, int offset, int len)\r |
78 | {\r |
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79 | }\r |
80 | \r |
81 | \r |
82 | void gp2x_memset_all_buffers(int offset, int byte, int len)\r |
83 | {\r |
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84 | memset((char *)gp2x_screen + offset, byte, len);\r |
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85 | }\r |
86 | \r |
87 | \r |
88 | void gp2x_pd_clone_buffer2(void)\r |
89 | {\r |
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90 | memset(gp2x_screen, 0, 800*480*2);\r |
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91 | }\r |
92 | \r |
93 | \r |
94 | unsigned long gp2x_joystick_read(int allow_usb_joy)\r |
95 | {\r |
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96 | unsigned long value = 0;\r |
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97 | int i;\r |
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98 | \r |
99 | if (allow_usb_joy && num_of_joys > 0) {\r |
100 | // check the usb joy as well..\r |
101 | gp2x_usbjoy_update();\r |
102 | for (i = 0; i < num_of_joys; i++)\r |
103 | value |= gp2x_usbjoy_check(i);\r |
104 | }\r |
105 | \r |
106 | return value;\r |
107 | }\r |
108 | \r |
109 | typedef struct ucb1x00_ts_event\r |
110 | {\r |
111 | unsigned short pressure;\r |
112 | unsigned short x;\r |
113 | unsigned short y;\r |
114 | unsigned short pad;\r |
115 | struct timeval stamp;\r |
116 | } UCB1X00_TS_EVENT;\r |
117 | \r |
118 | int gp2x_touchpad_read(int *x, int *y)\r |
119 | {\r |
120 | UCB1X00_TS_EVENT event;\r |
121 | static int zero_seen = 0;\r |
122 | int retval;\r |
123 | \r |
124 | if (touchdev < 0) return -1;\r |
125 | \r |
126 | retval = read(touchdev, &event, sizeof(event));\r |
127 | if (retval <= 0) {\r |
128 | printf("touch read failed %i %i\n", retval, errno);\r |
129 | return -1;\r |
130 | }\r |
131 | // this is to ignore the messed-up 4.1.x driver\r |
132 | if (event.pressure == 0) zero_seen = 1;\r |
133 | \r |
134 | if (x) *x = (event.x * touchcal[0] + touchcal[2]) >> 16;\r |
135 | if (y) *y = (event.y * touchcal[4] + touchcal[5]) >> 16;\r |
136 | // printf("read %i %i %i\n", event.pressure, *x, *y);\r |
137 | \r |
138 | return zero_seen ? event.pressure : 0;\r |
139 | }\r |
140 | \r |
141 | \r |
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142 | static int s_oldrate = 0, s_oldbits = 0, s_oldstereo = 0;\r |
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143 | \r |
144 | void gp2x_start_sound(int rate, int bits, int stereo)\r |
145 | {\r |
146 | int frag = 0, bsize, buffers;\r |
147 | \r |
148 | // if no settings change, we don't need to do anything\r |
149 | if (rate == s_oldrate && s_oldbits == bits && s_oldstereo == stereo) return;\r |
150 | \r |
151 | if (sounddev > 0) close(sounddev);\r |
152 | sounddev = open("/dev/dsp", O_WRONLY|O_ASYNC);\r |
153 | if (sounddev == -1)\r |
154 | printf("open(\"/dev/dsp\") failed with %i\n", errno);\r |
155 | \r |
156 | ioctl(sounddev, SNDCTL_DSP_SETFMT, &bits);\r |
157 | ioctl(sounddev, SNDCTL_DSP_SPEED, &rate);\r |
158 | ioctl(sounddev, SNDCTL_DSP_STEREO, &stereo);\r |
159 | // calculate buffer size\r |
160 | buffers = 16;\r |
161 | bsize = rate / 32;\r |
162 | if (rate > 22050) { bsize*=4; buffers*=2; } // 44k mode seems to be very demanding\r |
163 | while ((bsize>>=1)) frag++;\r |
164 | frag |= buffers<<16; // 16 buffers\r |
165 | ioctl(sounddev, SNDCTL_DSP_SETFRAGMENT, &frag);\r |
166 | usleep(192*1024);\r |
167 | \r |
168 | printf("gp2x_set_sound: %i/%ibit/%s, %i buffers of %i bytes\n",\r |
169 | rate, bits, stereo?"stereo":"mono", frag>>16, 1<<(frag&0xffff));\r |
170 | \r |
171 | s_oldrate = rate; s_oldbits = bits; s_oldstereo = stereo;\r |
172 | }\r |
173 | \r |
174 | \r |
175 | void gp2x_sound_write(void *buff, int len)\r |
176 | {\r |
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177 | write(sounddev, buff, len);\r |
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178 | }\r |
179 | \r |
180 | void gp2x_sound_sync(void)\r |
181 | {\r |
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182 | // ioctl(sounddev, SOUND_PCM_SYNC, 0);\r |
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183 | }\r |
184 | \r |
185 | void gp2x_sound_volume(int l, int r)\r |
186 | {\r |
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187 | #if 0\r |
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188 | l=l<0?0:l; l=l>255?255:l; r=r<0?0:r; r=r>255?255:r;\r |
189 | l<<=8; l|=r;\r |
190 | ioctl(mixerdev, SOUND_MIXER_WRITE_PCM, &l); /*SOUND_MIXER_WRITE_VOLUME*/\r |
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191 | #endif\r |
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192 | }\r |
193 | \r |
194 | \r |
195 | /* common */\r |
196 | void gp2x_init(void)\r |
197 | {\r |
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198 | struct fb_fix_screeninfo fbfix;\r |
199 | int ret;\r |
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200 | \r |
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201 | printf("entering init()\n"); fflush(stdout);\r |
202 | \r |
203 | memdev = open("/dev/mem", O_RDWR);\r |
204 | if (memdev == -1)\r |
205 | {\r |
206 | printf("open(\"/dev/mem\") failed with %i\n", errno);\r |
207 | exit(1);\r |
208 | }\r |
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209 | /*\r |
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210 | memregs = mmap(0, 0x01000000, PROT_READ|PROT_WRITE, MAP_SHARED, memdev, 0x48000000);\r |
211 | if (memregs == MAP_FAILED)\r |
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212 | {\r |
213 | printf("mmap(memregs) failed with %i\n", errno);\r |
214 | exit(1);\r |
215 | }\r |
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216 | */\r |
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217 | fbdev = open("/dev/fb0", O_RDWR);\r |
218 | if (fbdev == -1)\r |
219 | {\r |
220 | printf("open(\"/dev/fb0\") failed with %i\n", errno);\r |
221 | exit(1);\r |
222 | }\r |
223 | \r |
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224 | ret = ioctl(fbdev, FBIOGET_FSCREENINFO, &fbfix);\r |
225 | if (ret == -1)\r |
226 | {\r |
227 | printf("ioctl(fbdev) failed with %i\n", errno);\r |
228 | exit(1);\r |
229 | }\r |
230 | \r |
231 | // squidge hack\r |
232 | if (fbfix.line_length != 800*2)\r |
233 | {\r |
234 | gp2x_screen = malloc(800*640*2);\r |
235 | return;\r |
236 | }\r |
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237 | \r |
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238 | screen = mmap(0, SCREEN_MAP_SIZE, PROT_WRITE|PROT_READ, MAP_SHARED, fbdev, 0);\r |
239 | if (screen == MAP_FAILED)\r |
240 | {\r |
241 | printf("mmap(fbptr) failed with %i\n", errno);\r |
242 | exit(1);\r |
243 | }\r |
244 | printf("fbptr %p\n", screen);\r |
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245 | // gp2x_screen = (char *)screen + 800*10*2-64;\r |
246 | gp2x_screen = screen;\r |
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247 | \r |
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248 | \r |
249 | // snd\r |
250 | mixerdev = open("/dev/mixer", O_RDWR);\r |
251 | if (mixerdev == -1)\r |
252 | printf("open(\"/dev/mixer\") failed with %i\n", errno);\r |
253 | \r |
254 | /* init usb joys -GnoStiC */\r |
255 | gp2x_usbjoy_init();\r |
256 | \r |
257 | // touchscreen\r |
258 | touchdev = open("/dev/touchscreen/wm97xx", O_RDONLY);\r |
259 | if (touchdev >= 0) {\r |
260 | FILE *pcf = fopen("/etc/pointercal", "r");\r |
261 | if (pcf) {\r |
262 | fscanf(pcf, "%d %d %d %d %d %d %d", &touchcal[0], &touchcal[1],\r |
263 | &touchcal[2], &touchcal[3], &touchcal[4], &touchcal[5], &touchcal[6]);\r |
264 | fclose(pcf);\r |
265 | }\r |
266 | printf("found touchscreen/wm97xx\n");\r |
267 | }\r |
268 | \r |
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269 | printf("exitting init()\n"); fflush(stdout);\r |
270 | }\r |
271 | \r |
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272 | void gp2x_deinit(void)\r |
273 | {\r |
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274 | //gp2x_video_changemode(15);\r |
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275 | \r |
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276 | if (screen != MAP_FAILED)\r |
277 | munmap(screen, SCREEN_MAP_SIZE);\r |
278 | if (memregs != MAP_FAILED)\r |
279 | munmap((void *)memregs, 0x10000);\r |
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280 | close(memdev);\r |
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281 | if (fbdev >= 0) close(fbdev);\r |
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282 | if (mixerdev >= 0) close(mixerdev);\r |
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283 | if (sounddev >= 0) close(sounddev);\r |
284 | if (touchdev >= 0) close(touchdev);\r |
285 | \r |
286 | gp2x_usbjoy_deinit();\r |
287 | \r |
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288 | printf("all done");\r |
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289 | }\r |
290 | \r |
291 | /* lprintf */\r |
292 | void lprintf(const char *fmt, ...)\r |
293 | {\r |
294 | va_list vl;\r |
295 | \r |
296 | va_start(vl, fmt);\r |
297 | vprintf(fmt, vl);\r |
298 | va_end(vl);\r |
299 | }\r |
300 | \r |
301 | \r |
302 | /* fake GP2X */\r |
303 | int crashed_940 = 0;\r |
304 | \r |
305 | int readpng(void *dest, const char *fname, int what) { return -1; }\r |
306 | void set_gamma(int g100, int A_SNs_curve) {}\r |
307 | void set_FCLK(unsigned MHZ) {}\r |
308 | void set_LCD_custom_rate(int rate) {}\r |
309 | void unset_LCD_custom_rate(void) {}\r |
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310 | void Pause940(int yes) {}\r |
311 | void Reset940(int yes, int bank) {}\r |
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312 | \r |