X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=pandora%2Fpandora.c;h=ce9fac670cfad678503d207f13f7e6def09ef2ac;hb=82abf46f3db8ade517881c03327bdbc0de848eb2;hp=3fc4690e41095108c5b438b4df8bbffb0d42d8cc;hpb=fe01739339fe177363948c6fd518352243d5cf37;p=libpicofe.git diff --git a/pandora/pandora.c b/pandora/pandora.c index 3fc4690..ce9fac6 100644 --- a/pandora/pandora.c +++ b/pandora/pandora.c @@ -1,25 +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 #include @@ -28,431 +6,57 @@ #include #include #include -#include -#include +#include #include #include -#include "../gp2x/gp2x.h" -#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 -int memdev = 0; -static int sounddev = -1, mixerdev = -1, touchdev = -1; -static int touchcal[7] = { 6203, 0, -1501397, 0, -4200, 16132680, 65536 }; - -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); -} - - -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); -} - - -void gp2x_pd_clone_buffer2(void) -{ - memcpy(gp2x_screen, gp2x_screens[2], 320*240*2); -} - - -unsigned long gp2x_joystick_read(int allow_usb_joy) -{ - 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.. - gp2x_usbjoy_update(); - for (i = 0; i < num_of_joys; i++) - value |= gp2x_usbjoy_check(i); - } - - return value; -} - -typedef struct ucb1x00_ts_event -{ - unsigned short pressure; - unsigned short x; - unsigned short y; - unsigned short pad; - struct timeval stamp; -} UCB1X00_TS_EVENT; - -int gp2x_touchpad_read(int *x, int *y) -{ - UCB1X00_TS_EVENT event; - static int zero_seen = 0; - int retval; - - if (touchdev < 0) return -1; - - retval = read(touchdev, &event, sizeof(event)); - if (retval <= 0) { - printf("touch read failed %i %i\n", retval, errno); - return -1; - } - // this is to ignore the messed-up 4.1.x driver - if (event.pressure == 0) zero_seen = 1; - - if (x) *x = (event.x * touchcal[0] + touchcal[2]) >> 16; - if (y) *y = (event.y * touchcal[4] + touchcal[5]) >> 16; - // printf("read %i %i %i\n", event.pressure, *x, *y); - - return zero_seen ? event.pressure : 0; -} - - -static int s_oldrate = 0, s_oldbits = 0, s_oldstereo = 0; - -void gp2x_start_sound(int rate, int bits, int stereo) -{ - int frag = 0, bsize, buffers; - - // if no settings change, we don't need to do anything - if (rate == s_oldrate && s_oldbits == bits && s_oldstereo == stereo) return; - - if (sounddev > 0) close(sounddev); - sounddev = open("/dev/dsp", O_WRONLY|O_ASYNC); - if (sounddev == -1) - printf("open(\"/dev/dsp\") failed with %i\n", errno); - - ioctl(sounddev, SNDCTL_DSP_SETFMT, &bits); - ioctl(sounddev, SNDCTL_DSP_SPEED, &rate); - ioctl(sounddev, SNDCTL_DSP_STEREO, &stereo); - // calculate buffer size - buffers = 16; - bsize = rate / 32; - if (rate > 22050) { bsize*=4; buffers*=2; } // 44k mode seems to be very demanding - while ((bsize>>=1)) frag++; - frag |= buffers<<16; // 16 buffers - ioctl(sounddev, SNDCTL_DSP_SETFRAGMENT, &frag); - usleep(192*1024); - - printf("gp2x_set_sound: %i/%ibit/%s, %i buffers of %i bytes\n", - rate, bits, stereo?"stereo":"mono", frag>>16, 1<<(frag&0xffff)); - - s_oldrate = rate; s_oldbits = bits; s_oldstereo = stereo; -} - - -void gp2x_sound_write(void *buff, int len) -{ - write(sounddev, buff, len); -} - -void gp2x_sound_sync(void) -{ - ioctl(sounddev, SOUND_PCM_SYNC, 0); -} - -void gp2x_sound_volume(int l, int r) -{ - 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; -} - +#include "../linux/sndout_oss.h" +#include "../common/arm_linux.h" +#include "../common/emu.h" +#include "pandora.h" -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); -} +static int fbdev = -1; +#define SCREEN_MAP_SIZE (800*480*2) +static void *screen = MAP_FAILED; /* common */ -void gp2x_init(void) +void pnd_init(void) { printf("entering init()\n"); fflush(stdout); - memdev = open("/dev/mem", O_RDWR); - if (memdev == -1) + fbdev = open("/dev/fb0", O_RDWR); + if (fbdev == -1) { - printf("open(\"/dev/mem\") failed with %i\n", errno); + perror("open(\"/dev/fb0\")"); 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) + screen = mmap(0, SCREEN_MAP_SIZE, PROT_WRITE|PROT_READ, MAP_SHARED, fbdev, 0); + if (screen == MAP_FAILED) { - printf("mmap(memregs) failed with %i\n", errno); + perror("mmap(fbptr)"); 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) - { - printf("mmap(gp2x_screen) 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]; - - memcpy(gp2x_screenaddrs_use, gp2x_screenaddrs, sizeof(gp2x_screenaddrs)); - gp2x_memset_all_buffers(0, 0, 320*240*2); + printf("fbptr %p\n", screen); + g_screen_ptr = screen; // snd - mixerdev = open("/dev/mixer", O_RDWR); - if (mixerdev == -1) - printf("open(\"/dev/mixer\") failed with %i\n", errno); - - /* init usb joys -GnoStiC */ - gp2x_usbjoy_init(); - - // touchscreen - touchdev = open("/dev/touchscreen/wm97xx", O_RDONLY); - if (touchdev >= 0) { - FILE *pcf = fopen("/etc/pointercal", "r"); - if (pcf) { - fscanf(pcf, "%d %d %d %d %d %d %d", &touchcal[0], &touchcal[1], - &touchcal[2], &touchcal[3], &touchcal[4], &touchcal[5], &touchcal[6]); - fclose(pcf); - } - 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"); + sndout_oss_init(); printf("exitting init()\n"); fflush(stdout); } -char *ext_menu = 0, *ext_state = 0; - -void gp2x_deinit(void) +void pnd_exit(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]; - - munmap(gp2x_screens[0], FRAMEBUFF_WHOLESIZE); - munmap((void *)gp2x_memregs, 0x10000); - close(memdev); - close(mixerdev); - if (sounddev >= 0) close(sounddev); - if (touchdev >= 0) close(touchdev); + if (screen != MAP_FAILED) + munmap(screen, SCREEN_MAP_SIZE); + if (fbdev >= 0) + close(fbdev); - gp2x_usbjoy_deinit(); + sndout_oss_exit(); - 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 */ @@ -467,11 +71,11 @@ void lprintf(const char *fmt, ...) /* fake GP2X */ -int crashed_940 = 0; - -int readpng(void *dest, const char *fname, int what) { return -1; } +/* 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) {} +*/