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Add example NAND dump code.
Line 34:
Line 34:
+
* -64: NAND_RESULT_UNKNOWN
* -64: NAND_RESULT_UNKNOWN
* -128: NAND_RESULT_FATALERROR
* -128: NAND_RESULT_FATALERROR
+
+=== Example Dump Code ===
+
+Here is an example code for dumping complete NAND including ECC:
+
+<source lang="c">
+#define NAND_BLOCK_SIZE 0x840
+#define NAND_SIZE 0x40000
+
+int dumpnand(void)
+{
+ s32 fd = -1;
+ FILE *fout = NULL;
+ static unsigned char buffer[NAND_BLOCK_SIZE] __attribute__ ((aligned(32)));
+ int rv;
+ int sector;
+
+ printf("NAND dump!\n");
+
+ if (!fatInitDefault()) {
+ printf("Failed to initialize FAT.\n");
+ return 0;
+ }
+ chdir ("fat:/");
+ fout = fopen("nanddump.bin", "wb");
+ if (fout == NULL) {
+ printf("Failed to write nanddump.bin on SD card.\n");
+ return 0;
+ }
+
+ fd = IOS_Open("/dev/flash", 0);
+ if (fd < 0) {
+ fclose(fout);
+ fatUnmount(PI_DEFAULT);
+ printf("Failed to open /dev/flash (ret = %d)\n", fd);
+ return 0;
+ }
+ for (sector = 0; sector < NAND_SIZE; sector++) {
+ rv = IOS_Seek(fd, sector, 0);
+ if (rv != sector) {
+ printf("IOS_Seek failed, sector 0x%02x (rv = %d).\n", sector, rv);
+ break;
+ }
+ if ((sector & 0x1f) == 0) {
+ printf("Sector 0x%02x of 0x%02x\n", sector, NAND_SIZE);
+ }
+ rv = IOS_Read(fd, buffer, NAND_BLOCK_SIZE);
+ if (rv != NAND_BLOCK_SIZE) {
+ printf("Failed to read NAND sector 0x%02x (rv = %d)\n", sector, rv);
+ if (rv == -12) {
+ /* Flash sector seems to be unreadable. Use erase value. */
+ memset(buffer, 0xFF, NAND_BLOCK_SIZE);
+ } else {
+ break;
+ }
+ }
+ rv = fwrite(buffer, NAND_BLOCK_SIZE, 1, fout);
+ if (rv != 1) {
+ printf("Failed to write SD card (rv = %d)\n", rv);
+ break;
+ }
+ }
+ IOS_Close(fd);
+ fclose(fout);
+ fatUnmount(PI_DEFAULT);
+
+ printf("Finished dump.\n");
+ return 0;
+}
+</source>
[[Category:Wii Filesystem]]
[[Category:Wii Filesystem]]