164 lines
3.5 KiB
C
164 lines
3.5 KiB
C
/*
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* fs.c
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*/
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#include "fs.h"
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#include "memory.h"
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#include "screeninit.h"
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#include "fatfs/ff.h"
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#include "buttons.h"
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#include "../build/loader.h"
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static FATFS sdFs,
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nandFs;
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u32 mountFs(void)
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{
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if(f_mount(&sdFs, "0:", 1) != FR_OK) return 0;
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f_mount(&nandFs, "1:", 0);
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return 1;
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}
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u32 fileRead(void *dest, const char *path)
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{
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FIL file;
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u32 size;
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if(f_open(&file, path, FA_READ) == FR_OK)
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{
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unsigned int read;
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size = f_size(&file);
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f_read(&file, dest, size, &read);
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f_close(&file);
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}
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else size = 0;
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return size;
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}
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void fileWrite(const void *buffer, const char *path, u32 size)
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{
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FIL file;
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if(f_open(&file, path, FA_WRITE | FA_OPEN_ALWAYS) == FR_OK)
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{
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unsigned int written;
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f_write(&file, buffer, size, &written);
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f_close(&file);
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}
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}
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void loadPayload(u32 pressed)
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{
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const char *pattern;
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if(pressed & BUTTON_RIGHT) pattern = PATTERN("right");
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else if(pressed & BUTTON_LEFT) pattern = PATTERN("left");
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else if(pressed & BUTTON_UP) pattern = PATTERN("up");
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else if(pressed & BUTTON_DOWN) pattern = PATTERN("down");
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else if(pressed & BUTTON_X) pattern = PATTERN("x");
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else if(pressed & BUTTON_Y) pattern = PATTERN("y");
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else if(pressed & BUTTON_R1) pattern = PATTERN("r");
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else if(pressed & BUTTON_A) pattern = PATTERN("a");
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else if(pressed & BUTTON_START) pattern = PATTERN("start");
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else if(pressed & BUTTON_SELECT) pattern = PATTERN("select");
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else pattern = "nlc.bin";
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DIR dir;
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FILINFO info;
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char path[28] = "/luma/payloads";
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FRESULT result = f_findfirst(&dir, &info, path, pattern);
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f_closedir(&dir);
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if(result == FR_OK && info.fname[0])
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{
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initScreens();
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u32 *const loaderAddress = (u32 *)0x24FFFB00;
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memcpy(loaderAddress, loader, loader_size);
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path[14] = '/';
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memcpy(&path[15], info.altname, 13);
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loaderAddress[1] = fileRead((void *)0x24F00000, path);
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if(pattern[0] == 'n') f_unlink(path);
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((void (*)())loaderAddress)();
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}
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}
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void findDumpFile(const char *path, char *fileName)
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{
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DIR dir;
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FILINFO info;
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u32 n = 0;
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while(f_findfirst(&dir, &info, path, fileName) == FR_OK && info.fname[0])
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{
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u32 i = 18,
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tmp = ++n;
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while(tmp)
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{
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fileName[i--] = '0' + (tmp % 10);
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tmp /= 10;
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}
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}
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f_closedir(&dir);
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}
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void firmRead(void *dest, const char *firmFolder)
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{
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char path[48] = "1:/title/00040138/00000000/content";
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memcpy(&path[18], firmFolder, 8);
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DIR dir;
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FILINFO info;
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f_opendir(&dir, path);
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u32 id = 0xFFFFFFFF;
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//Parse the target directory
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while(f_readdir(&dir, &info) == FR_OK && info.fname[0])
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{
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//Not a cxi
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if(info.altname[9] != 'A') continue;
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//Convert the .app name to an integer
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u32 tempId = 0;
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for(char *tmp = info.altname; *tmp != '.'; tmp++)
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{
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tempId <<= 4;
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tempId += *tmp > '9' ? *tmp - 'A' + 10 : *tmp - '0';
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}
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//Found an older cxi
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if(tempId < id) id = tempId;
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}
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f_closedir(&dir);
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//Complete the string with the .app name
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memcpy(&path[34], "/00000000.app", 14);
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//Last digit of the .app
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u32 i = 42;
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//Convert back the .app name from integer to array
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while(id)
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{
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static const char hexDigits[] = "0123456789ABCDEF";
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path[i--] = hexDigits[id & 0xF];
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id >>= 4;
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}
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fileRead(dest, path);
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}
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