-/**\r
- * All this is mostly based on rlyeh's minimal library.\r
- * Copied here to review all his code and understand what's going on.\r
-**/\r
-\r
-/*\r
-\r
- GP2X minimal library v0.A by rlyeh, (c) 2005. emulnation.info@rlyeh (swap it!)\r
-\r
- Thanks to Squidge, Robster, snaff, Reesy and NK, for the help & previous work! :-)\r
-\r
- License\r
- =======\r
-\r
- Free for non-commercial projects (it would be nice receiving a mail from you).\r
- Other cases, ask me first.\r
-\r
- GamePark Holdings is not allowed to use this library and/or use parts from it.\r
-\r
-*/\r
-\r
\r
#include <stdio.h>\r
#include <stdlib.h>\r
#include "../gp2x/usbjoy.h"\r
#include "../common/arm_utils.h"\r
\r
-volatile unsigned short *gp2x_memregs;\r
-//static\r
-volatile unsigned long *gp2x_memregl;\r
-static void *gp2x_screens[4];\r
-static int screensel = 0;\r
+static volatile unsigned int *memregs;\r
//static\r
int memdev = 0;\r
static int sounddev = -1, mixerdev = -1, touchdev = -1;\r
static int touchcal[7] = { 6203, 0, -1501397, 0, -4200, 16132680, 65536 };\r
\r
+#define SCREEN_MAP_SIZE (((800*(480+11)*2)+0xfff)&~0xfff)\r
+static void *screen;\r
void *gp2x_screen;\r
\r
-#define FRAMEBUFF_WHOLESIZE (0x30000*4) // 320*240*2 + some more\r
-#define FRAMEBUFF_ADDR0 (0x4000000-FRAMEBUFF_WHOLESIZE)\r
-#define FRAMEBUFF_ADDR1 (FRAMEBUFF_ADDR0+0x30000)\r
-#define FRAMEBUFF_ADDR2 (FRAMEBUFF_ADDR1+0x30000)\r
-#define FRAMEBUFF_ADDR3 (FRAMEBUFF_ADDR2+0x30000)\r
-\r
-static const int gp2x_screenaddrs[4] = { FRAMEBUFF_ADDR0, FRAMEBUFF_ADDR1, FRAMEBUFF_ADDR2, FRAMEBUFF_ADDR3 };\r
-static int gp2x_screenaddrs_use[4];\r
-static unsigned short gp2x_screenaddr_old[4];\r
-\r
\r
/* video stuff */\r
void gp2x_video_flip(void)\r
{\r
- unsigned short lsw = (unsigned short) gp2x_screenaddrs_use[screensel&3];\r
- unsigned short msw = (unsigned short)(gp2x_screenaddrs_use[screensel&3] >> 16);\r
-\r
- gp2x_memregs[0x2910>>1] = msw;\r
- gp2x_memregs[0x2914>>1] = msw;\r
- gp2x_memregs[0x290E>>1] = lsw;\r
- gp2x_memregs[0x2912>>1] = lsw;\r
-\r
- // jump to other buffer:\r
- gp2x_screen = gp2x_screens[++screensel&3];\r
}\r
\r
/* doulblebuffered flip */\r
void gp2x_video_flip2(void)\r
{\r
- unsigned short msw = (unsigned short)(gp2x_screenaddrs_use[screensel&1] >> 16);\r
-\r
- gp2x_memregs[0x2910>>1] = msw;\r
- gp2x_memregs[0x2914>>1] = msw;\r
- gp2x_memregs[0x290E>>1] = 0;\r
- gp2x_memregs[0x2912>>1] = 0;\r
-\r
- // jump to other buffer:\r
- gp2x_screen = gp2x_screens[++screensel&1];\r
}\r
\r
\r
void gp2x_video_changemode2(int bpp)\r
{\r
- gp2x_memregs[0x28DA>>1]=(((bpp+1)/8)<<9)|0xAB; /*8/15/16/24bpp...*/\r
- gp2x_memregs[0x290C>>1]=320*((bpp+1)/8); /*line width in bytes*/\r
}\r
\r
\r
void gp2x_video_changemode(int bpp)\r
{\r
- gp2x_video_changemode2(bpp);\r
-\r
- gp2x_memset_all_buffers(0, 0, 320*240*2);\r
- gp2x_video_flip();\r
}\r
\r
\r
void gp2x_video_setpalette(int *pal, int len)\r
{\r
- unsigned short *g=(unsigned short *)pal;\r
- volatile unsigned short *memreg = &gp2x_memregs[0x295A>>1];\r
- gp2x_memregs[0x2958>>1] = 0;\r
-\r
- len *= 2;\r
- while(len--) *memreg=*g++;\r
}\r
\r
\r
-// TV Compatible function //\r
void gp2x_video_RGB_setscaling(int ln_offs, int W, int H)\r
{\r
- float escalaw, escalah;\r
- int bpp = (gp2x_memregs[0x28DA>>1]>>9)&0x3;\r
- unsigned short scalw;\r
-\r
- // set offset\r
- gp2x_screenaddrs_use[0] = gp2x_screenaddrs[0] + ln_offs * 320 * bpp;\r
- gp2x_screenaddrs_use[1] = gp2x_screenaddrs[1] + ln_offs * 320 * bpp;\r
- gp2x_screenaddrs_use[2] = gp2x_screenaddrs[2] + ln_offs * 320 * bpp;\r
- gp2x_screenaddrs_use[3] = gp2x_screenaddrs[3] + ln_offs * 320 * bpp;\r
-\r
- escalaw = 1024.0; // RGB Horiz LCD\r
- escalah = 320.0; // RGB Vert LCD\r
-\r
- if(gp2x_memregs[0x2800>>1]&0x100) //TV-Out\r
- {\r
- escalaw=489.0; // RGB Horiz TV (PAL, NTSC)\r
- if (gp2x_memregs[0x2818>>1] == 287) //PAL\r
- escalah=274.0; // RGB Vert TV PAL\r
- else if (gp2x_memregs[0x2818>>1] == 239) //NTSC\r
- escalah=331.0; // RGB Vert TV NTSC\r
- }\r
-\r
- // scale horizontal\r
- scalw = (unsigned short)((float)escalaw *(W/320.0));\r
- /* if there is no horizontal scaling, vertical doesn't work. Here is a nasty wrokaround... */\r
- if (H != 240 && W == 320) scalw--;\r
- gp2x_memregs[0x2906>>1]=scalw;\r
- // scale vertical\r
- gp2x_memregl[0x2908>>2]=(unsigned long)((float)escalah *bpp *(H/240.0));\r
}\r
\r
\r
void gp2x_video_wait_vsync(void)\r
{\r
- unsigned short v = gp2x_memregs[0x1182>>1];\r
- while (!((v ^ gp2x_memregs[0x1182>>1]) & 0x10)) spend_cycles(1024);\r
}\r
\r
\r
void gp2x_video_flush_cache(void)\r
{\r
- // since we are using the mmu hack, we must flush the cache first\r
- // (the params are most likely wrong, but they seem to work somehow)\r
- //flushcache(addr, addr + 320*240*2, 0);\r
- flushcache(gp2x_screen, (char *)gp2x_screen + 320*240*2, 0);\r
+// flushcache(gp2x_screen, (char *)gp2x_screen + 320*240*2, 0);\r
}\r
\r
\r
void gp2x_memcpy_buffers(int buffers, void *data, int offset, int len)\r
{\r
- char *dst;\r
- if (buffers & (1<<0)) { dst = (char *)gp2x_screens[0] + offset; if (dst != data) memcpy(dst, data, len); }\r
- if (buffers & (1<<1)) { dst = (char *)gp2x_screens[1] + offset; if (dst != data) memcpy(dst, data, len); }\r
- if (buffers & (1<<2)) { dst = (char *)gp2x_screens[2] + offset; if (dst != data) memcpy(dst, data, len); }\r
- if (buffers & (1<<3)) { dst = (char *)gp2x_screens[3] + offset; if (dst != data) memcpy(dst, data, len); }\r
}\r
\r
\r
void gp2x_memcpy_all_buffers(void *data, int offset, int len)\r
{\r
- gp2x_memcpy_buffers(0xf, data, offset, len);\r
}\r
\r
\r
void gp2x_memset_all_buffers(int offset, int byte, int len)\r
{\r
- memset((char *)gp2x_screens[0] + offset, byte, len);\r
- memset((char *)gp2x_screens[1] + offset, byte, len);\r
- memset((char *)gp2x_screens[2] + offset, byte, len);\r
- memset((char *)gp2x_screens[3] + offset, byte, len);\r
+ memset((char *)gp2x_screen + offset, byte, len);\r
}\r
\r
\r
void gp2x_pd_clone_buffer2(void)\r
{\r
- memcpy(gp2x_screen, gp2x_screens[2], 320*240*2);\r
}\r
\r
\r
unsigned long gp2x_joystick_read(int allow_usb_joy)\r
{\r
+ unsigned long value = 0;\r
int i;\r
- unsigned long value=(gp2x_memregs[0x1198>>1] & 0x00FF); // GPIO M\r
- if(value==0xFD) value=0xFA;\r
- if(value==0xF7) value=0xEB;\r
- if(value==0xDF) value=0xAF;\r
- if(value==0x7F) value=0xBE;\r
- value = ~((gp2x_memregs[0x1184>>1] & 0xFF00) | value | (gp2x_memregs[0x1186>>1] << 16)); // C D\r
\r
if (allow_usb_joy && num_of_joys > 0) {\r
// check the usb joy as well..\r
}\r
\r
\r
-static int s_oldrate = 0, s_oldbits = 0, s_oldstereo = 0;\r
+//static int s_oldrate = 0, s_oldbits = 0, s_oldstereo = 0;\r
\r
void gp2x_start_sound(int rate, int bits, int stereo)\r
{\r
+#if 0\r
int frag = 0, bsize, buffers;\r
\r
// if no settings change, we don't need to do anything\r
rate, bits, stereo?"stereo":"mono", frag>>16, 1<<(frag&0xffff));\r
\r
s_oldrate = rate; s_oldbits = bits; s_oldstereo = stereo;\r
+#endif\r
}\r
\r
\r
void gp2x_sound_write(void *buff, int len)\r
{\r
- write(sounddev, buff, len);\r
+// write(sounddev, buff, len);\r
}\r
\r
void gp2x_sound_sync(void)\r
{\r
- ioctl(sounddev, SOUND_PCM_SYNC, 0);\r
+// ioctl(sounddev, SOUND_PCM_SYNC, 0);\r
}\r
\r
void gp2x_sound_volume(int l, int r)\r
{\r
+#if 0\r
l=l<0?0:l; l=l>255?255:l; r=r<0?0:r; r=r>255?255:r;\r
l<<=8; l|=r;\r
ioctl(mixerdev, SOUND_MIXER_WRITE_PCM, &l); /*SOUND_MIXER_WRITE_VOLUME*/\r
-}\r
-\r
-\r
-/* 940 */\r
-void Pause940(int yes)\r
-{\r
- if(yes)\r
- gp2x_memregs[0x0904>>1] &= 0xFFFE;\r
- else\r
- gp2x_memregs[0x0904>>1] |= 1;\r
-}\r
-\r
-\r
-void Reset940(int yes, int bank)\r
-{\r
- gp2x_memregs[0x3B48>>1] = ((yes&1) << 7) | (bank & 0x03);\r
-}\r
-\r
-static void proc_set(const char *path, const char *val)\r
-{\r
- FILE *f;\r
- char tmp[16];\r
-\r
- f = fopen(path, "w");\r
- if (f == NULL) {\r
- printf("failed to open: %s\n", path);\r
- return;\r
- }\r
-\r
- fprintf(f, "0\n");\r
- fclose(f);\r
-\r
- printf("\"%s\" is set to: ", path);\r
- f = fopen(path, "r");\r
- if (f == NULL) {\r
- printf("(open failed)\n");\r
- return;\r
- }\r
-\r
- fgets(tmp, sizeof(tmp), f);\r
- printf("%s", tmp);\r
- fclose(f);\r
+#endif\r
}\r
\r
\r
/* common */\r
void gp2x_init(void)\r
{\r
+// struct fb_fix_screeninfo fbfix;\r
+ int fbdev;\r
+\r
printf("entering init()\n"); fflush(stdout);\r
\r
memdev = open("/dev/mem", O_RDWR);\r
exit(1);\r
}\r
\r
- gp2x_memregs = mmap(0, 0x10000, PROT_READ|PROT_WRITE, MAP_SHARED, memdev, 0xc0000000);\r
- printf("memregs are @ %p\n", gp2x_memregs);\r
- if(gp2x_memregs == MAP_FAILED)\r
+ memregs = mmap(0, 0x01000000, PROT_READ|PROT_WRITE, MAP_SHARED, memdev, 0x48000000);\r
+ if (memregs == MAP_FAILED)\r
{\r
printf("mmap(memregs) failed with %i\n", errno);\r
exit(1);\r
}\r
- gp2x_memregl = (unsigned long *) gp2x_memregs;\r
\r
- gp2x_memregs[0x2880>>1] &= ~0x383; // disable cursor, subpict, osd, video layers\r
-\r
- gp2x_screens[0] = mmap(0, FRAMEBUFF_WHOLESIZE, PROT_WRITE, MAP_SHARED, memdev, FRAMEBUFF_ADDR0);\r
- if(gp2x_screens[0] == MAP_FAILED)\r
+ fbdev = open("/dev/fb0", O_RDWR);\r
+ if (fbdev == -1)\r
{\r
- printf("mmap(gp2x_screen) failed with %i\n", errno);\r
+ printf("open(\"/dev/fb0\") failed with %i\n", errno);\r
exit(1);\r
}\r
- printf("framebuffers point to %p\n", gp2x_screens[0]);\r
- gp2x_screens[1] = (char *) gp2x_screens[0]+0x30000;\r
- gp2x_screens[2] = (char *) gp2x_screens[1]+0x30000;\r
- gp2x_screens[3] = (char *) gp2x_screens[2]+0x30000;\r
-\r
- gp2x_screen = gp2x_screens[0];\r
- screensel = 0;\r
\r
- gp2x_screenaddr_old[0] = gp2x_memregs[0x290E>>1];\r
- gp2x_screenaddr_old[1] = gp2x_memregs[0x2910>>1];\r
- gp2x_screenaddr_old[2] = gp2x_memregs[0x2912>>1];\r
- gp2x_screenaddr_old[3] = gp2x_memregs[0x2914>>1];\r
+/*\r
+ ret = ioctl(fbdev, FBIOGET_FSCREENINFO, &fbfix);\r
+ if (ret == -1)\r
+ {\r
+ printf("ioctl(fbdev) failed with %i\n", errno);\r
+ exit(1);\r
+ }\r
+*/\r
+ screen = mmap(0, SCREEN_MAP_SIZE, PROT_WRITE|PROT_READ, MAP_SHARED, fbdev, 0);\r
+ if (screen == MAP_FAILED)\r
+ {\r
+ printf("mmap(fbptr) failed with %i\n", errno);\r
+ exit(1);\r
+ }\r
+ printf("fbptr %p\n", screen);\r
+ gp2x_screen = (char *)screen + 800*10*2-64;\r
\r
- memcpy(gp2x_screenaddrs_use, gp2x_screenaddrs, sizeof(gp2x_screenaddrs));\r
- gp2x_memset_all_buffers(0, 0, 320*240*2);\r
\r
// snd\r
mixerdev = open("/dev/mixer", O_RDWR);\r
printf("found touchscreen/wm97xx\n");\r
}\r
\r
- /* disable Linux read-ahead */\r
- proc_set("/proc/sys/vm/max-readahead", "0\n");\r
- proc_set("/proc/sys/vm/min-readahead", "0\n");\r
-\r
printf("exitting init()\n"); fflush(stdout);\r
}\r
\r
-char *ext_menu = 0, *ext_state = 0;\r
-\r
void gp2x_deinit(void)\r
{\r
- Reset940(1, 3);\r
- Pause940(1);\r
-\r
- gp2x_video_changemode(15);\r
- gp2x_memregs[0x290E>>1] = gp2x_screenaddr_old[0];\r
- gp2x_memregs[0x2910>>1] = gp2x_screenaddr_old[1];\r
- gp2x_memregs[0x2912>>1] = gp2x_screenaddr_old[2];\r
- gp2x_memregs[0x2914>>1] = gp2x_screenaddr_old[3];\r
+ //gp2x_video_changemode(15);\r
\r
- munmap(gp2x_screens[0], FRAMEBUFF_WHOLESIZE);\r
- munmap((void *)gp2x_memregs, 0x10000);\r
+ munmap(screen, SCREEN_MAP_SIZE);\r
+ munmap((void *)memregs, 0x10000);\r
close(memdev);\r
- close(mixerdev);\r
+ if (mixerdev >= 0) close(mixerdev);\r
if (sounddev >= 0) close(sounddev);\r
if (touchdev >= 0) close(touchdev);\r
\r
gp2x_usbjoy_deinit();\r
\r
- printf("all done, running ");\r
-\r
- // Zaq121's alternative frontend support from MAME\r
- if(ext_menu && ext_state) {\r
- printf("%s -state %s\n", ext_menu, ext_state);\r
- execl(ext_menu, ext_menu, "-state", ext_state, NULL);\r
- } else if(ext_menu) {\r
- printf("%s\n", ext_menu);\r
- execl(ext_menu, ext_menu, NULL);\r
- } else {\r
- printf("gp2xmenu\n");\r
- chdir("/usr/gp2x");\r
- execl("gp2xmenu", "gp2xmenu", NULL);\r
- }\r
+ printf("all done");\r
}\r
\r
/* lprintf */\r
void set_FCLK(unsigned MHZ) {}\r
void set_LCD_custom_rate(int rate) {}\r
void unset_LCD_custom_rate(void) {}\r
+void Pause940(int yes) {}\r
+void Reset940(int yes, int bank) {}\r
\r
notaz.gp2x.de / libpicofe.git / blobdiff