X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=gp2x%2Fgp2x.c;h=6d9f82e39f0afeff914df4898045287e80bd44b3;hb=42c8119010bfc48776e8c82e42cceb06d07c0247;hp=a8ec704221da0b2c8bbcad298cb0f899c177aa94;hpb=4cdfc0bc7b3dd2051b8027da4e2f35bbb9897307;p=gpsp.git diff --git a/gp2x/gp2x.c b/gp2x/gp2x.c index a8ec704..6d9f82e 100644 --- a/gp2x/gp2x.c +++ b/gp2x/gp2x.c @@ -19,16 +19,17 @@ */ +#define _BSD_SOURCE +#define _GNU_SOURCE #include #include #include +#include +#include #include "../common.h" #include "gp2x.h" #include "warm.h" -extern int main_cpuspeed(int argc, char *argv[]); -extern SDL_Surface* screen; - u32 gp2x_audio_volume = 74/2; u32 gpsp_gp2x_dev_audio = 0; u32 gpsp_gp2x_dev = 0; @@ -36,39 +37,21 @@ u32 gpsp_gp2x_gpiodev = 0; static volatile u16 *gpsp_gp2x_memregs; static volatile u32 *gpsp_gp2x_memregl; -unsigned short *gp2x_memregs; - -s32 gp2x_load_mmuhack() -{ - s32 mmufd = open("/dev/mmuhack", O_RDWR); - - if(mmufd < 0) - { - system("/sbin/insmod mmuhack.o"); - mmufd = open("/dev/mmuhack", O_RDWR); - } - - if(mmufd < 0) - return -1; - - close(mmufd); - return 0; -} #ifdef WIZ_BUILD #include void *gpsp_gp2x_screen; -static u32 fb_paddr[3]; -static void *fb_vaddr[3]; +#define fb_buf_count 4 +static u32 fb_paddr[fb_buf_count]; +static void *fb_vaddr[fb_buf_count]; static u32 fb_work_buf; -const int fb_buf_count = 3; -static int fb_buf_use = 3; +static int fb_buf_use; +static int fbdev; static void fb_video_init() { struct fb_fix_screeninfo fbfix; int i, ret; - int fbdev; fbdev = open("/dev/fb0", O_RDWR); if (fbdev < 0) { @@ -85,7 +68,6 @@ static void fb_video_init() printf("framebuffer: \"%s\" @ %08lx\n", fbfix.id, fbfix.smem_start); fb_paddr[0] = fbfix.smem_start; - close(fbdev); fb_vaddr[0] = mmap(0, 320*240*2*fb_buf_count, PROT_READ|PROT_WRITE, MAP_SHARED, gpsp_gp2x_dev, fb_paddr[0]); @@ -112,7 +94,6 @@ static void fb_video_init() void pollux_video_flip() { - warm_cache_op_all(WOP_D_CLEAN); gpsp_gp2x_memregl[0x406C>>2] = fb_paddr[fb_work_buf]; gpsp_gp2x_memregl[0x4058>>2] |= 0x10; fb_work_buf++; @@ -128,49 +109,169 @@ void fb_use_buffers(int count) else if (count > fb_buf_count) count = fb_buf_count; fb_buf_use = count; + memset(fb_vaddr[0], 0, 320*240*2*count); +} + +void wiz_lcd_set_portrait(int y) +{ + static int old_y = -1; + int cmd[2] = { 0, 0 }; + + if (old_y == y) + return; + cmd[0] = y ? 6 : 5; + ioctl(fbdev, _IOW('D', 90, int[2]), cmd); + gpsp_gp2x_memregl[0x4004>>2] = y ? 0x013f00ef : 0x00ef013f; + gpsp_gp2x_memregl[0x4000>>2] |= 1 << 3; + old_y = y; } static void fb_video_exit() { - /* switch to default fb mem */ + /* switch to default fb mem, turn portrait off */ gpsp_gp2x_memregl[0x406C>>2] = fb_paddr[0]; gpsp_gp2x_memregl[0x4058>>2] |= 0x10; + wiz_lcd_set_portrait(0); + close(fbdev); +} + +static int wiz_gamepak_fd = -1; +static u32 wiz_gamepak_size; + +static void wiz_gamepak_cleanup() +{ + if (wiz_gamepak_size) + munmap(gamepak_rom, wiz_gamepak_size); + if (wiz_gamepak_fd >= 0) + close(wiz_gamepak_fd); + gamepak_rom = NULL; + wiz_gamepak_size = 0; + wiz_gamepak_fd = -1; } + +u32 wiz_load_gamepak(char *name) +{ + char *dot_position = strrchr(name, '.'); + u32 ret; + + if (!strcasecmp(dot_position, ".zip")) + { + if (wiz_gamepak_fd >= 0) + { + wiz_gamepak_cleanup(); + printf("switching to ROM malloc\n"); + init_gamepak_buffer(); + } + return load_file_zip(name); + } + + if (wiz_gamepak_fd < 0) + { + extern void *gamepak_memory_map; + free(gamepak_rom); + free(gamepak_memory_map); + gamepak_memory_map = NULL; + printf("switching to ROM mmap\n"); + } + else + wiz_gamepak_cleanup(); + + wiz_gamepak_fd = open(name, O_RDONLY|O_NOATIME, S_IRUSR); + if (wiz_gamepak_fd < 0) + { + perror("wiz_load_gamepak: open failed"); + return -1; + } + + ret = lseek(wiz_gamepak_fd, 0, SEEK_END); + wiz_gamepak_size = gamepak_ram_buffer_size = ret; + + gamepak_rom = mmap(0, ret, PROT_READ, MAP_SHARED, wiz_gamepak_fd, 0); + if (gamepak_rom == MAP_FAILED) + { + perror("wiz_load_gamepak: mmap failed"); + return -1; + } + + return ret; +} + #endif +static int get_romdir(char *buff, size_t size) +{ + FILE *f; + char *s; + int r = -1; + + f = fopen("romdir.txt", "r"); + if (f == NULL) + return -1; + + s = fgets(buff, size, f); + if (s) + { + r = strlen(s); + while (r > 0 && isspace(buff[r-1])) + buff[--r] = 0; + } + + fclose(f); + return r; +} + void gp2x_init() { + char buff[256]; + gpsp_gp2x_dev = open("/dev/mem", O_RDWR); gpsp_gp2x_dev_audio = open("/dev/mixer", O_RDWR); gpsp_gp2x_memregl = (unsigned long *)mmap(0, 0x10000, PROT_READ|PROT_WRITE, MAP_SHARED, gpsp_gp2x_dev, 0xc0000000); gpsp_gp2x_memregs = (unsigned short *)gpsp_gp2x_memregl; + warm_init(); #ifdef WIZ_BUILD gpsp_gp2x_gpiodev = open("/dev/GPIO", O_RDONLY); - warm_init(); fb_video_init(); #endif -// clear_screen(0); -// main_cpuspeed(0, NULL); - gp2x_memregs = (void *)gpsp_gp2x_memregs; - cpuctrl_init(); + if (get_romdir(buff, sizeof(buff)) > 0) + chdir(buff); + gp2x_sound_volume(1); } void gp2x_quit() { + char buff1[256], buff2[256]; + + getcwd(buff1, sizeof(buff1)); + chdir(main_path); + if (get_romdir(buff2, sizeof(buff2)) >= 0 && + strcmp(buff1, buff2) != 0) + { + FILE *f = fopen("romdir.txt", "w"); + if (f != NULL) + { + printf("writing romdir: %s\n", buff1); + fprintf(f, "%s", buff1); + fclose(f); + } + } + + warm_finish(); #ifdef WIZ_BUILD close(gpsp_gp2x_gpiodev); fb_video_exit(); + wiz_gamepak_cleanup(); #endif munmap((void *)gpsp_gp2x_memregl, 0x10000); close(gpsp_gp2x_dev_audio); close(gpsp_gp2x_dev); - //chdir("/usr/gp2x"); - //execl("gp2xmenu", "gp2xmenu", NULL); + fcloseall(); + sync(); exit(0); } @@ -219,13 +320,31 @@ u32 gpsp_gp2x_joystick_read(void) #endif } -#ifdef WIZ_BUILD -void cpuctrl_init(void) -{ -} - +// Fout = (m * Fin) / (p * 2^s) void set_FCLK(u32 MHZ) { -} + u32 v; + u32 mdiv, pdiv, sdiv = 0; +#ifdef WIZ_BUILD + #define SYS_CLK_FREQ 27 + // m = MDIV, p = PDIV, s = SDIV + pdiv = 9; + mdiv = (MHZ * pdiv) / SYS_CLK_FREQ; + mdiv &= 0x3ff; + v = (pdiv<<18) | (mdiv<<8) | sdiv; + + gpsp_gp2x_memregl[0xf004>>2] = v; + gpsp_gp2x_memregl[0xf07c>>2] |= 0x8000; + while (gpsp_gp2x_memregl[0xf07c>>2] & 0x8000) + ; +#else + #define SYS_CLK_FREQ 7372800 + // m = MDIV + 8, p = PDIV + 2, s = SDIV + pdiv = 3; + mdiv = (MHZ * pdiv * 1000000) / SYS_CLK_FREQ; + mdiv &= 0xff; + v = ((mdiv-8)<<8) | ((pdiv-2)<<2) | sdiv; + gpsp_gp2x_memregs[0x910>>1] = v; #endif +}