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
15 #include "../gp2x/gp2x.h"
\r
16 #include "../gp2x/usbjoy.h"
\r
17 #include "../common/arm_utils.h"
\r
19 static volatile unsigned int *memregs;
\r
22 static int sounddev = -1, mixerdev = -1, touchdev = -1;
\r
23 static int touchcal[7] = { 6203, 0, -1501397, 0, -4200, 16132680, 65536 };
\r
25 //#define SCREEN_MAP_SIZE (((800*(480+11)*2)+0xfff)&~0xfff)
\r
26 #define SCREEN_MAP_SIZE (800*480*2)
\r
27 static void *screen;
\r
32 void gp2x_video_flip(void)
\r
36 /* doulblebuffered flip */
\r
37 void gp2x_video_flip2(void)
\r
42 void gp2x_video_changemode2(int bpp)
\r
47 void gp2x_video_changemode(int bpp)
\r
52 void gp2x_video_setpalette(int *pal, int len)
\r
57 void gp2x_video_RGB_setscaling(int ln_offs, int W, int H)
\r
62 void gp2x_video_wait_vsync(void)
\r
67 void gp2x_video_flush_cache(void)
\r
69 // flushcache(gp2x_screen, (char *)gp2x_screen + 320*240*2, 0);
\r
73 void gp2x_memcpy_buffers(int buffers, void *data, int offset, int len)
\r
78 void gp2x_memcpy_all_buffers(void *data, int offset, int len)
\r
83 void gp2x_memset_all_buffers(int offset, int byte, int len)
\r
85 memset((char *)gp2x_screen + offset, byte, len);
\r
89 void gp2x_pd_clone_buffer2(void)
\r
94 unsigned long gp2x_joystick_read(int allow_usb_joy)
\r
96 unsigned long value = 0;
\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
109 typedef struct ucb1x00_ts_event
\r
111 unsigned short pressure;
\r
114 unsigned short pad;
\r
115 struct timeval stamp;
\r
116 } UCB1X00_TS_EVENT;
\r
118 int gp2x_touchpad_read(int *x, int *y)
\r
120 UCB1X00_TS_EVENT event;
\r
121 static int zero_seen = 0;
\r
124 if (touchdev < 0) return -1;
\r
126 retval = read(touchdev, &event, sizeof(event));
\r
128 printf("touch read failed %i %i\n", retval, errno);
\r
131 // this is to ignore the messed-up 4.1.x driver
\r
132 if (event.pressure == 0) zero_seen = 1;
\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
138 return zero_seen ? event.pressure : 0;
\r
142 //static int s_oldrate = 0, s_oldbits = 0, s_oldstereo = 0;
\r
144 void gp2x_start_sound(int rate, int bits, int stereo)
\r
147 int frag = 0, bsize, buffers;
\r
149 // if no settings change, we don't need to do anything
\r
150 if (rate == s_oldrate && s_oldbits == bits && s_oldstereo == stereo) return;
\r
152 if (sounddev > 0) close(sounddev);
\r
153 sounddev = open("/dev/dsp", O_WRONLY|O_ASYNC);
\r
154 if (sounddev == -1)
\r
155 printf("open(\"/dev/dsp\") failed with %i\n", errno);
\r
157 ioctl(sounddev, SNDCTL_DSP_SETFMT, &bits);
\r
158 ioctl(sounddev, SNDCTL_DSP_SPEED, &rate);
\r
159 ioctl(sounddev, SNDCTL_DSP_STEREO, &stereo);
\r
160 // calculate buffer size
\r
163 if (rate > 22050) { bsize*=4; buffers*=2; } // 44k mode seems to be very demanding
\r
164 while ((bsize>>=1)) frag++;
\r
165 frag |= buffers<<16; // 16 buffers
\r
166 ioctl(sounddev, SNDCTL_DSP_SETFRAGMENT, &frag);
\r
169 printf("gp2x_set_sound: %i/%ibit/%s, %i buffers of %i bytes\n",
\r
170 rate, bits, stereo?"stereo":"mono", frag>>16, 1<<(frag&0xffff));
\r
172 s_oldrate = rate; s_oldbits = bits; s_oldstereo = stereo;
\r
177 void gp2x_sound_write(void *buff, int len)
\r
179 // write(sounddev, buff, len);
\r
182 void gp2x_sound_sync(void)
\r
184 // ioctl(sounddev, SOUND_PCM_SYNC, 0);
\r
187 void gp2x_sound_volume(int l, int r)
\r
190 l=l<0?0:l; l=l>255?255:l; r=r<0?0:r; r=r>255?255:r;
\r
192 ioctl(mixerdev, SOUND_MIXER_WRITE_PCM, &l); /*SOUND_MIXER_WRITE_VOLUME*/
\r
198 void gp2x_init(void)
\r
200 // struct fb_fix_screeninfo fbfix;
\r
203 printf("entering init()\n"); fflush(stdout);
\r
205 memdev = open("/dev/mem", O_RDWR);
\r
208 printf("open(\"/dev/mem\") failed with %i\n", errno);
\r
212 memregs = mmap(0, 0x01000000, PROT_READ|PROT_WRITE, MAP_SHARED, memdev, 0x48000000);
\r
213 if (memregs == MAP_FAILED)
\r
215 printf("mmap(memregs) failed with %i\n", errno);
\r
219 fbdev = open("/dev/fb0", O_RDWR);
\r
222 printf("open(\"/dev/fb0\") failed with %i\n", errno);
\r
227 ret = ioctl(fbdev, FBIOGET_FSCREENINFO, &fbfix);
\r
230 printf("ioctl(fbdev) failed with %i\n", errno);
\r
234 screen = mmap(0, SCREEN_MAP_SIZE, PROT_WRITE|PROT_READ, MAP_SHARED, fbdev, 0);
\r
235 if (screen == MAP_FAILED)
\r
237 printf("mmap(fbptr) failed with %i\n", errno);
\r
240 printf("fbptr %p\n", screen);
\r
241 // gp2x_screen = (char *)screen + 800*10*2-64;
\r
242 gp2x_screen = screen;
\r
246 mixerdev = open("/dev/mixer", O_RDWR);
\r
247 if (mixerdev == -1)
\r
248 printf("open(\"/dev/mixer\") failed with %i\n", errno);
\r
250 /* init usb joys -GnoStiC */
\r
251 gp2x_usbjoy_init();
\r
254 touchdev = open("/dev/touchscreen/wm97xx", O_RDONLY);
\r
255 if (touchdev >= 0) {
\r
256 FILE *pcf = fopen("/etc/pointercal", "r");
\r
258 fscanf(pcf, "%d %d %d %d %d %d %d", &touchcal[0], &touchcal[1],
\r
259 &touchcal[2], &touchcal[3], &touchcal[4], &touchcal[5], &touchcal[6]);
\r
262 printf("found touchscreen/wm97xx\n");
\r
265 printf("exitting init()\n"); fflush(stdout);
\r
268 void gp2x_deinit(void)
\r
270 //gp2x_video_changemode(15);
\r
272 munmap(screen, SCREEN_MAP_SIZE);
\r
273 munmap((void *)memregs, 0x10000);
\r
275 if (mixerdev >= 0) close(mixerdev);
\r
276 if (sounddev >= 0) close(sounddev);
\r
277 if (touchdev >= 0) close(touchdev);
\r
279 gp2x_usbjoy_deinit();
\r
281 printf("all done");
\r
285 void lprintf(const char *fmt, ...)
\r
296 int crashed_940 = 0;
\r
298 int readpng(void *dest, const char *fname, int what) { return -1; }
\r
299 void set_gamma(int g100, int A_SNs_curve) {}
\r
300 void set_FCLK(unsigned MHZ) {}
\r
301 void set_LCD_custom_rate(int rate) {}
\r
302 void unset_LCD_custom_rate(void) {}
\r
303 void Pause940(int yes) {}
\r
304 void Reset940(int yes, int bank) {}
\r