X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=pandora%2Fpandora.c;h=177972554c5a616cf5e48953a5be3e9d3ea45625;hb=492d353af951b6a34a1f62d07ec64456b6e34600;hp=3fc4690e41095108c5b438b4df8bbffb0d42d8cc;hpb=fe01739339fe177363948c6fd518352243d5cf37;p=libpicofe.git diff --git a/pandora/pandora.c b/pandora/pandora.c index 3fc4690..1779725 100644 --- a/pandora/pandora.c +++ b/pandora/pandora.c @@ -1,24 +1,3 @@ -/** - * All this is mostly based on rlyeh's minimal library. - * Copied here to review all his code and understand what's going on. -**/ - -/* - - GP2X minimal library v0.A by rlyeh, (c) 2005. emulnation.info@rlyeh (swap it!) - - Thanks to Squidge, Robster, snaff, Reesy and NK, for the help & previous work! :-) - - License - ======= - - Free for non-commercial projects (it would be nice receiving a mail from you). - Other cases, ask me first. - - GamePark Holdings is not allowed to use this library and/or use parts from it. - -*/ - #include #include @@ -37,177 +16,84 @@ #include "../gp2x/usbjoy.h" #include "../common/arm_utils.h" -volatile unsigned short *gp2x_memregs; -//static -volatile unsigned long *gp2x_memregl; -static void *gp2x_screens[4]; -static int screensel = 0; +static volatile unsigned int *memregs; //static int memdev = 0; static int sounddev = -1, mixerdev = -1, touchdev = -1; static int touchcal[7] = { 6203, 0, -1501397, 0, -4200, 16132680, 65536 }; +#define SCREEN_MAP_SIZE (((800*(480+11)*2)+0xfff)&~0xfff) +static void *screen; void *gp2x_screen; -#define FRAMEBUFF_WHOLESIZE (0x30000*4) // 320*240*2 + some more -#define FRAMEBUFF_ADDR0 (0x4000000-FRAMEBUFF_WHOLESIZE) -#define FRAMEBUFF_ADDR1 (FRAMEBUFF_ADDR0+0x30000) -#define FRAMEBUFF_ADDR2 (FRAMEBUFF_ADDR1+0x30000) -#define FRAMEBUFF_ADDR3 (FRAMEBUFF_ADDR2+0x30000) - -static const int gp2x_screenaddrs[4] = { FRAMEBUFF_ADDR0, FRAMEBUFF_ADDR1, FRAMEBUFF_ADDR2, FRAMEBUFF_ADDR3 }; -static int gp2x_screenaddrs_use[4]; -static unsigned short gp2x_screenaddr_old[4]; - /* video stuff */ void gp2x_video_flip(void) { - unsigned short lsw = (unsigned short) gp2x_screenaddrs_use[screensel&3]; - unsigned short msw = (unsigned short)(gp2x_screenaddrs_use[screensel&3] >> 16); - - gp2x_memregs[0x2910>>1] = msw; - gp2x_memregs[0x2914>>1] = msw; - gp2x_memregs[0x290E>>1] = lsw; - gp2x_memregs[0x2912>>1] = lsw; - - // jump to other buffer: - gp2x_screen = gp2x_screens[++screensel&3]; } /* doulblebuffered flip */ void gp2x_video_flip2(void) { - unsigned short msw = (unsigned short)(gp2x_screenaddrs_use[screensel&1] >> 16); - - gp2x_memregs[0x2910>>1] = msw; - gp2x_memregs[0x2914>>1] = msw; - gp2x_memregs[0x290E>>1] = 0; - gp2x_memregs[0x2912>>1] = 0; - - // jump to other buffer: - gp2x_screen = gp2x_screens[++screensel&1]; } void gp2x_video_changemode2(int bpp) { - gp2x_memregs[0x28DA>>1]=(((bpp+1)/8)<<9)|0xAB; /*8/15/16/24bpp...*/ - gp2x_memregs[0x290C>>1]=320*((bpp+1)/8); /*line width in bytes*/ } void gp2x_video_changemode(int bpp) { - gp2x_video_changemode2(bpp); - - gp2x_memset_all_buffers(0, 0, 320*240*2); - gp2x_video_flip(); } void gp2x_video_setpalette(int *pal, int len) { - unsigned short *g=(unsigned short *)pal; - volatile unsigned short *memreg = &gp2x_memregs[0x295A>>1]; - gp2x_memregs[0x2958>>1] = 0; - - len *= 2; - while(len--) *memreg=*g++; } -// TV Compatible function // void gp2x_video_RGB_setscaling(int ln_offs, int W, int H) { - float escalaw, escalah; - int bpp = (gp2x_memregs[0x28DA>>1]>>9)&0x3; - unsigned short scalw; - - // set offset - gp2x_screenaddrs_use[0] = gp2x_screenaddrs[0] + ln_offs * 320 * bpp; - gp2x_screenaddrs_use[1] = gp2x_screenaddrs[1] + ln_offs * 320 * bpp; - gp2x_screenaddrs_use[2] = gp2x_screenaddrs[2] + ln_offs * 320 * bpp; - gp2x_screenaddrs_use[3] = gp2x_screenaddrs[3] + ln_offs * 320 * bpp; - - escalaw = 1024.0; // RGB Horiz LCD - escalah = 320.0; // RGB Vert LCD - - if(gp2x_memregs[0x2800>>1]&0x100) //TV-Out - { - escalaw=489.0; // RGB Horiz TV (PAL, NTSC) - if (gp2x_memregs[0x2818>>1] == 287) //PAL - escalah=274.0; // RGB Vert TV PAL - else if (gp2x_memregs[0x2818>>1] == 239) //NTSC - escalah=331.0; // RGB Vert TV NTSC - } - - // scale horizontal - scalw = (unsigned short)((float)escalaw *(W/320.0)); - /* if there is no horizontal scaling, vertical doesn't work. Here is a nasty wrokaround... */ - if (H != 240 && W == 320) scalw--; - gp2x_memregs[0x2906>>1]=scalw; - // scale vertical - gp2x_memregl[0x2908>>2]=(unsigned long)((float)escalah *bpp *(H/240.0)); } void gp2x_video_wait_vsync(void) { - unsigned short v = gp2x_memregs[0x1182>>1]; - while (!((v ^ gp2x_memregs[0x1182>>1]) & 0x10)) spend_cycles(1024); } void gp2x_video_flush_cache(void) { - // since we are using the mmu hack, we must flush the cache first - // (the params are most likely wrong, but they seem to work somehow) - //flushcache(addr, addr + 320*240*2, 0); - flushcache(gp2x_screen, (char *)gp2x_screen + 320*240*2, 0); +// flushcache(gp2x_screen, (char *)gp2x_screen + 320*240*2, 0); } void gp2x_memcpy_buffers(int buffers, void *data, int offset, int len) { - char *dst; - if (buffers & (1<<0)) { dst = (char *)gp2x_screens[0] + offset; if (dst != data) memcpy(dst, data, len); } - if (buffers & (1<<1)) { dst = (char *)gp2x_screens[1] + offset; if (dst != data) memcpy(dst, data, len); } - if (buffers & (1<<2)) { dst = (char *)gp2x_screens[2] + offset; if (dst != data) memcpy(dst, data, len); } - if (buffers & (1<<3)) { dst = (char *)gp2x_screens[3] + offset; if (dst != data) memcpy(dst, data, len); } } void gp2x_memcpy_all_buffers(void *data, int offset, int len) { - gp2x_memcpy_buffers(0xf, data, offset, len); } void gp2x_memset_all_buffers(int offset, int byte, int len) { - memset((char *)gp2x_screens[0] + offset, byte, len); - memset((char *)gp2x_screens[1] + offset, byte, len); - memset((char *)gp2x_screens[2] + offset, byte, len); - memset((char *)gp2x_screens[3] + offset, byte, len); + memset((char *)gp2x_screen + offset, byte, len); } void gp2x_pd_clone_buffer2(void) { - memcpy(gp2x_screen, gp2x_screens[2], 320*240*2); } unsigned long gp2x_joystick_read(int allow_usb_joy) { + unsigned long value = 0; int i; - unsigned long value=(gp2x_memregs[0x1198>>1] & 0x00FF); // GPIO M - if(value==0xFD) value=0xFA; - if(value==0xF7) value=0xEB; - if(value==0xDF) value=0xAF; - if(value==0x7F) value=0xBE; - value = ~((gp2x_memregs[0x1184>>1] & 0xFF00) | value | (gp2x_memregs[0x1186>>1] << 16)); // C D if (allow_usb_joy && num_of_joys > 0) { // check the usb joy as well.. @@ -252,10 +138,11 @@ int gp2x_touchpad_read(int *x, int *y) } -static int s_oldrate = 0, s_oldbits = 0, s_oldstereo = 0; +//static int s_oldrate = 0, s_oldbits = 0, s_oldstereo = 0; void gp2x_start_sound(int rate, int bits, int stereo) { +#if 0 int frag = 0, bsize, buffers; // if no settings change, we don't need to do anything @@ -282,72 +169,36 @@ void gp2x_start_sound(int rate, int bits, int stereo) rate, bits, stereo?"stereo":"mono", frag>>16, 1<<(frag&0xffff)); s_oldrate = rate; s_oldbits = bits; s_oldstereo = stereo; +#endif } void gp2x_sound_write(void *buff, int len) { - write(sounddev, buff, len); +// write(sounddev, buff, len); } void gp2x_sound_sync(void) { - ioctl(sounddev, SOUND_PCM_SYNC, 0); +// ioctl(sounddev, SOUND_PCM_SYNC, 0); } void gp2x_sound_volume(int l, int r) { +#if 0 l=l<0?0:l; l=l>255?255:l; r=r<0?0:r; r=r>255?255:r; l<<=8; l|=r; ioctl(mixerdev, SOUND_MIXER_WRITE_PCM, &l); /*SOUND_MIXER_WRITE_VOLUME*/ -} - - -/* 940 */ -void Pause940(int yes) -{ - if(yes) - gp2x_memregs[0x0904>>1] &= 0xFFFE; - else - gp2x_memregs[0x0904>>1] |= 1; -} - - -void Reset940(int yes, int bank) -{ - gp2x_memregs[0x3B48>>1] = ((yes&1) << 7) | (bank & 0x03); -} - -static void proc_set(const char *path, const char *val) -{ - FILE *f; - char tmp[16]; - - f = fopen(path, "w"); - if (f == NULL) { - printf("failed to open: %s\n", path); - return; - } - - fprintf(f, "0\n"); - fclose(f); - - printf("\"%s\" is set to: ", path); - f = fopen(path, "r"); - if (f == NULL) { - printf("(open failed)\n"); - return; - } - - fgets(tmp, sizeof(tmp), f); - printf("%s", tmp); - fclose(f); +#endif } /* common */ void gp2x_init(void) { +// struct fb_fix_screeninfo fbfix; + int fbdev; + printf("entering init()\n"); fflush(stdout); memdev = open("/dev/mem", O_RDWR); @@ -357,38 +208,37 @@ void gp2x_init(void) exit(1); } - gp2x_memregs = mmap(0, 0x10000, PROT_READ|PROT_WRITE, MAP_SHARED, memdev, 0xc0000000); - printf("memregs are @ %p\n", gp2x_memregs); - if(gp2x_memregs == MAP_FAILED) + memregs = mmap(0, 0x01000000, PROT_READ|PROT_WRITE, MAP_SHARED, memdev, 0x48000000); + if (memregs == MAP_FAILED) { printf("mmap(memregs) failed with %i\n", errno); exit(1); } - gp2x_memregl = (unsigned long *) gp2x_memregs; - gp2x_memregs[0x2880>>1] &= ~0x383; // disable cursor, subpict, osd, video layers - - gp2x_screens[0] = mmap(0, FRAMEBUFF_WHOLESIZE, PROT_WRITE, MAP_SHARED, memdev, FRAMEBUFF_ADDR0); - if(gp2x_screens[0] == MAP_FAILED) + fbdev = open("/dev/fb0", O_RDWR); + if (fbdev == -1) { - printf("mmap(gp2x_screen) failed with %i\n", errno); + printf("open(\"/dev/fb0\") failed with %i\n", errno); exit(1); } - printf("framebuffers point to %p\n", gp2x_screens[0]); - gp2x_screens[1] = (char *) gp2x_screens[0]+0x30000; - gp2x_screens[2] = (char *) gp2x_screens[1]+0x30000; - gp2x_screens[3] = (char *) gp2x_screens[2]+0x30000; - - gp2x_screen = gp2x_screens[0]; - screensel = 0; - gp2x_screenaddr_old[0] = gp2x_memregs[0x290E>>1]; - gp2x_screenaddr_old[1] = gp2x_memregs[0x2910>>1]; - gp2x_screenaddr_old[2] = gp2x_memregs[0x2912>>1]; - gp2x_screenaddr_old[3] = gp2x_memregs[0x2914>>1]; +/* + ret = ioctl(fbdev, FBIOGET_FSCREENINFO, &fbfix); + if (ret == -1) + { + printf("ioctl(fbdev) failed with %i\n", errno); + exit(1); + } +*/ + screen = mmap(0, SCREEN_MAP_SIZE, PROT_WRITE|PROT_READ, MAP_SHARED, fbdev, 0); + if (screen == MAP_FAILED) + { + printf("mmap(fbptr) failed with %i\n", errno); + exit(1); + } + printf("fbptr %p\n", screen); + gp2x_screen = (char *)screen + 800*10*2-64; - memcpy(gp2x_screenaddrs_use, gp2x_screenaddrs, sizeof(gp2x_screenaddrs)); - gp2x_memset_all_buffers(0, 0, 320*240*2); // snd mixerdev = open("/dev/mixer", O_RDWR); @@ -410,49 +260,23 @@ void gp2x_init(void) printf("found touchscreen/wm97xx\n"); } - /* disable Linux read-ahead */ - proc_set("/proc/sys/vm/max-readahead", "0\n"); - proc_set("/proc/sys/vm/min-readahead", "0\n"); - printf("exitting init()\n"); fflush(stdout); } -char *ext_menu = 0, *ext_state = 0; - void gp2x_deinit(void) { - Reset940(1, 3); - Pause940(1); - - gp2x_video_changemode(15); - gp2x_memregs[0x290E>>1] = gp2x_screenaddr_old[0]; - gp2x_memregs[0x2910>>1] = gp2x_screenaddr_old[1]; - gp2x_memregs[0x2912>>1] = gp2x_screenaddr_old[2]; - gp2x_memregs[0x2914>>1] = gp2x_screenaddr_old[3]; + //gp2x_video_changemode(15); - munmap(gp2x_screens[0], FRAMEBUFF_WHOLESIZE); - munmap((void *)gp2x_memregs, 0x10000); + munmap(screen, SCREEN_MAP_SIZE); + munmap((void *)memregs, 0x10000); close(memdev); - close(mixerdev); + if (mixerdev >= 0) close(mixerdev); if (sounddev >= 0) close(sounddev); if (touchdev >= 0) close(touchdev); gp2x_usbjoy_deinit(); - printf("all done, running "); - - // Zaq121's alternative frontend support from MAME - if(ext_menu && ext_state) { - printf("%s -state %s\n", ext_menu, ext_state); - execl(ext_menu, ext_menu, "-state", ext_state, NULL); - } else if(ext_menu) { - printf("%s\n", ext_menu); - execl(ext_menu, ext_menu, NULL); - } else { - printf("gp2xmenu\n"); - chdir("/usr/gp2x"); - execl("gp2xmenu", "gp2xmenu", NULL); - } + printf("all done"); } /* lprintf */ @@ -474,4 +298,6 @@ void set_gamma(int g100, int A_SNs_curve) {} void set_FCLK(unsigned MHZ) {} void set_LCD_custom_rate(int rate) {} void unset_LCD_custom_rate(void) {} +void Pause940(int yes) {} +void Reset940(int yes, int bank) {}