/**************************************************************************** * Copyright (c) 2013 by Michael Blandford. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * Original source of this code: Primoz Beltram * http://sourceforge.net/projects/fat12ctrlface/files/ * * Other Authors (alphabetical order) * - Andre Bernet * - Andreas Weitl * - Bertrand Songis * - Bryan J. Rentoul (Gruvin) * - Cameron Weeks * - Erez Raviv * - Gabriel Birkus * - Jean-Pierre Parisy * - Karl Szmutny * - Michal Hlavinka * - Pat Mackenzie * - Philip Moss * - Rob Thomson * - Romolo Manfredini * - Thomas Husterer * ****************************************************************************/ #include #include "string.h" //#include "myeeprom.h" #include "file.h" #define BLOCKSIZE 512 //------------------------------------------------------------------------------ /** * FAT12 boot sector partition. */ const char g_FATboot[BLOCKSIZE] = { // See http://en.wikipedia.org/wiki/FAT12#Boot_Sector 0xeb, 0x3c, 0x90, // Jump instruction. 0x39, 0x58, 0x20, 0x54, 0x45, 0x41, 0x4D, 0x00, // OEM Name 0x00, 0x02, // Bytes per sector 0x08, // Sectors per FS cluster. 0x01, 0x00, // Reserved sector count 0x01, // Number of FATs 0x10, 0x00, // Number of root directory entries #ifdef REVX 0x03, 0x08, // Total sectors = 2051 #else 0x03, 0x06, // Total sectors = 1539 #endif 0xf8, // Media descriptor 0x01, 0x00, // Sectors per FAT table 0x08, 0x00, // Sectors per track 0x40, 0x00, // Number of heads 0x00, 0x00, 0x00, 0x00, // Number of hidden sectors 0x00, 0x00, 0x00, 0x00, // Large number of sectors. 0x00, // Physical drive number 0x00, // Reserved 0x29, // Extended boot signature 0xCE, 0xFA, 0x5C, 0xD1, // Disk ID (serial number) 0x56, 0x49, 0x52, 0x54, 0x46, 0x53, 0x20, 0x20, 0x20, 0x20, 0x20, // Volume label 0x46, 0x41, 0x54, 0x31, 0x32, 0x20, 0x20, 0x20, // FAT file system type 0x00, 0x00, // OS boot code 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0xaa }; const char g_FAT[BLOCKSIZE] = { #ifdef REVX 0xF8, 0xFF, 0xFF, 0x03, 0x40, 0x00, 0x05, 0x60, 0x00, 0x07, 0x80, 0x00, 0x09, 0xA0, 0x00, 0x0B, 0xC0, 0x00, 0x0D, 0xE0, 0x00, 0x0F, 0x00, 0x01, 0x11, 0x20, 0x01, 0x13, 0x40, 0x01, 0x15, 0x60, 0x01, 0x17, 0x80, 0x01, 0x19, 0xA0, 0x01, 0x1B, 0xC0, 0x01, 0x1D, 0xE0, 0x01, 0x1F, 0x00, 0x02, 0x21, 0x20, 0x02, 0x23, 0x40, 0x02, 0x25, 0x60, 0x02, 0x27, 0x80, 0x02, 0x29, 0xA0, 0x02, 0x2B, 0xC0, 0x02, 0x2D, 0xE0, 0x02, 0x2F, 0x00, 0x03, 0x31, 0x20, 0x03, 0x33, 0x40, 0x03, 0x35, 0x60, 0x03, 0x37, 0x80, 0x03, 0x39, 0xA0, 0x03, 0x3B, 0xC0, 0x03, 0x3D, 0xE0, 0x03, 0x3F, 0x00, 0x04, 0x41, 0x20, 0x04, 0x43, 0x40, 0x04, 0x45, 0x60, 0x04, 0x47, 0x80, 0x04, 0x49, 0xA0, 0x04, 0x4B, 0xC0, 0x04, 0x4D, 0xE0, 0x04, 0x4F, 0x00, 0x05, 0x51, 0x20, 0x05, 0x53, 0x40, 0x05, 0x55, 0x60, 0x05, 0x57, 0x80, 0x05, 0x59, 0xA0, 0x05, 0x5B, 0xC0, 0x05, 0x5D, 0xE0, 0x05, 0x5F, 0x00, 0x06, 0x61, 0x20, 0x06, 0x63, 0x40, 0x06, 0x65, 0x60, 0x06, 0x67, 0x80, 0x06, 0x69, 0xA0, 0x06, 0x6B, 0xC0, 0x06, 0x6D, 0xE0, 0x06, 0x6F, 0x00, 0x07, 0x71, 0x20, 0x07, 0x73, 0x40, 0x07, 0x75, 0x60, 0x07, 0x77, 0x80, 0x07, 0x79, 0xA0, 0x07, 0x7B, 0xC0, 0x07, 0x7D, 0xE0, 0x07, 0x7F, 0x00, 0x08, 0x81, 0xF0, 0xFF, 0x83, 0x40, 0x08, 0x85, 0x60, 0x08, 0x87, 0x80, 0x08, 0x89, 0xA0, 0x08, 0x8B, 0xC0, 0x08, 0x8D, 0xE0, 0x08, 0x8F, 0x00, 0x09, 0x91, 0x20, 0x09, 0x93, 0x40, 0x09, 0x95, 0x60, 0x09, 0x97, 0x80, 0x09, 0x99, 0xA0, 0x09, 0x9B, 0xC0, 0x09, 0x9D, 0xE0, 0x09, 0x9F, 0x00, 0x0A, 0xA1, 0x20, 0x0A, 0xA3, 0x40, 0x0A, 0xA5, 0x60, 0x0A, 0xA7, 0x80, 0x0A, 0xA9, 0xA0, 0x0A, 0xAB, 0xC0, 0x0A, 0xAD, 0xE0, 0x0A, 0xAF, 0x00, 0x0B, 0xB1, 0x20, 0x0B, 0xB3, 0x40, 0x0B, 0xB5, 0x60, 0x0B, 0xB7, 0x80, 0x0B, 0xB9, 0xA0, 0x0B, 0xBB, 0xC0, 0x0B, 0xBD, 0xE0, 0x0B, 0xBF, 0x00, 0x0C, 0xC1, 0x20, 0x0C, 0xC3, 0x40, 0x0C, 0xC5, 0x60, 0x0C, 0xC7, 0x80, 0x0C, 0xC9, 0xA0, 0x0C, 0xCB, 0xC0, 0x0C, 0xCD, 0xE0, 0x0C, 0xCF, 0x00, 0x0D, 0xD1, 0x20, 0x0D, 0xD3, 0x40, 0x0D, 0xD5, 0x60, 0x0D, 0xD7, 0x80, 0x0D, 0xD9, 0xA0, 0x0D, 0xDB, 0xC0, 0x0D, 0xDD, 0xE0, 0x0D, 0xDF, 0x00, 0x0E, 0xE1, 0x20, 0x0E, 0xE3, 0x40, 0x0E, 0xE5, 0x60, 0x0E, 0xE7, 0x80, 0x0E, 0xE9, 0xA0, 0x0E, 0xEB, 0xC0, 0x0E, 0xED, 0xE0, 0x0E, 0xEF, 0x00, 0x0F, 0xF1, 0x20, 0x0F, 0xF3, 0x40, 0x0F, 0xF5, 0x60, 0x0F, 0xF7, 0x80, 0x0F, 0xF9, 0xA0, 0x0F, 0xFB, 0xC0, 0x0F, 0xFD, 0xE0, 0x0F, 0xFF, 0x00, 0x10, 0x01, 0xF1, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, #else 0xF8, 0xFF, 0xFF, 0x03, 0x40, 0x00, 0x05, 0x60, 0x00, 0x07, 0x80, 0x00, 0x09, 0xA0, 0x00, 0x0B, 0xC0, 0x00, 0x0D, 0xE0, 0x00, 0x0F, 0x00, 0x01, 0x11, 0x20, 0x01, 0x13, 0x40, 0x01, 0x15, 0x60, 0x01, 0x17, 0x80, 0x01, 0x19, 0xA0, 0x01, 0x1B, 0xC0, 0x01, 0x1D, 0xE0, 0x01, 0x1F, 0x00, 0x02, 0x21, 0x20, 0x02, 0x23, 0x40, 0x02, 0x25, 0x60, 0x02, 0x27, 0x80, 0x02, 0x29, 0xA0, 0x02, 0x2B, 0xC0, 0x02, 0x2D, 0xE0, 0x02, 0x2F, 0x00, 0x03, 0x31, 0x20, 0x03, 0x33, 0x40, 0x03, 0x35, 0x60, 0x03, 0x37, 0x80, 0x03, 0x39, 0xA0, 0x03, 0x3B, 0xC0, 0x03, 0x3D, 0xE0, 0x03, 0x3F, 0x00, 0x04, 0x41, 0x20, 0x04, 0x43, 0x40, 0x04, 0x45, 0x60, 0x04, 0x47, 0x80, 0x04, 0x49, 0xA0, 0x04, 0x4B, 0xC0, 0x04, 0x4D, 0xE0, 0x04, 0x4F, 0x00, 0x05, 0x51, 0x20, 0x05, 0x53, 0x40, 0x05, 0x55, 0x60, 0x05, 0x57, 0x80, 0x05, 0x59, 0xA0, 0x05, 0x5B, 0xC0, 0x05, 0x5D, 0xE0, 0x05, 0x5F, 0x00, 0x06, 0x61, 0x20, 0x06, 0x63, 0x40, 0x06, 0x65, 0x60, 0x06, 0x67, 0x80, 0x06, 0x69, 0xA0, 0x06, 0x6B, 0xC0, 0x06, 0x6D, 0xE0, 0x06, 0x6F, 0x00, 0x07, 0x71, 0x20, 0x07, 0x73, 0x40, 0x07, 0x75, 0x60, 0x07, 0x77, 0x80, 0x07, 0x79, 0xA0, 0x07, 0x7B, 0xC0, 0x07, 0x7D, 0xE0, 0x07, 0x7F, 0x00, 0x08, 0x81, 0xF0, 0xFF, 0x83, 0x40, 0x08, 0x85, 0x60, 0x08, 0x87, 0x80, 0x08, 0x89, 0xA0, 0x08, 0x8B, 0xC0, 0x08, 0x8D, 0xE0, 0x08, 0x8F, 0x00, 0x09, 0x91, 0x20, 0x09, 0x93, 0x40, 0x09, 0x95, 0x60, 0x09, 0x97, 0x80, 0x09, 0x99, 0xA0, 0x09, 0x9B, 0xC0, 0x09, 0x9D, 0xE0, 0x09, 0x9F, 0x00, 0x0A, 0xA1, 0x20, 0x0A, 0xA3, 0x40, 0x0A, 0xA5, 0x60, 0x0A, 0xA7, 0x80, 0x0A, 0xA9, 0xA0, 0x0A, 0xAB, 0xC0, 0x0A, 0xAD, 0xE0, 0x0A, 0xAF, 0x00, 0x0B, 0xB1, 0x20, 0x0B, 0xB3, 0x40, 0x0B, 0xB5, 0x60, 0x0B, 0xB7, 0x80, 0x0B, 0xB9, 0xA0, 0x0B, 0xBB, 0xC0, 0x0B, 0xBD, 0xE0, 0x0B, 0xBF, 0x00, 0x0C, 0xC1, 0xF0, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, #endif }; // File Attributes // 0 0x01 Read Only. // 1 0x02 Hidden. // 2 0x04 System. // 3 0x08 Volume Label. // 4 0x10 Subdirectory. // 5 0x20 Archive. // 6 0x40 Device. // 7 0x80 Reserved. typedef struct { uint8_t name[8]; uint8_t ext[3]; uint8_t attribute; uint8_t reserved; uint8_t create_time_ms; uint16_t create_time; uint16_t create_date; uint16_t access_date; uint16_t ea_index; uint16_t modify_time; uint16_t modify_date; uint16_t start_cluster; uint32_t file_size; } FATDirEntry_t; // First 16 FAT root directory entries (1 sector) const FATDirEntry_t g_DIRroot[16] = { { { 'E', 'R', 'S', 'K', 'Y', '_', '9', 'X'}, { ' ', ' ', ' '}, 0x08, // Volume 0x00, 0x00, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x00000000 }, { { 'E', 'R', 'S', 'K', 'Y', '9', 'X', ' '}, { 'B', 'I', 'N'}, 0x26, // Archive, hidden, system, read-only 0x00, 0x3E, 0xA301, 0x3D55, 0x3D55, 0x0000, 0xA302, 0x3D55, 0x0002, 0x00080000 }, { { 'F', 'I', 'R', 'M', 'W', 'A', 'R', 'E'}, { 'B', 'I', 'N'}, 0x26, 0x00, 0x3E, 0xA301, 0x3D55, 0x3D55, 0x0000, 0xA302, 0x3D55, 0x0082, #ifdef REVX 0x00080000 #else 0x00040000 #endif }, { { 'A', '2', ' ', ' ', ' ', ' ', ' ', ' '}, { ' ', ' ', ' '}, 0x27, 0x00, 0x3E, 0xA301, 0x3D55, 0x3D55, 0x0000, 0xA302, 0x3D55, 0x0000, 0x00000000 }, { { 'A', '3', ' ', ' ', ' ', ' ', ' ', ' '}, { ' ', ' ', ' '}, 0x27, 0x00, 0x3E, 0xA301, 0x3D55, 0x3D55, 0x0000, 0xA302, 0x3D55, 0x0000, 0x00000000 }, { { 'A', '4', ' ', ' ', ' ', ' ', ' ', ' '}, { ' ', ' ', ' '}, 0x27, 0x00, 0x3E, 0xA301, 0x3D55, 0x3D55, 0x0000, 0xA302, 0x3D55, 0x0000, 0x00000000 }, { { 'A', '5', ' ', ' ', ' ', ' ', ' ', ' '}, { ' ', ' ', ' '}, 0x27, 0x00, 0x3E, 0xA301, 0x3D55, 0x3D55, 0x0000, 0xA302, 0x3D55, 0x0000, 0x00000000 }, { { 'A', '6', ' ', ' ', ' ', ' ', ' ', ' '}, { ' ', ' ', ' '}, 0x27, 0x00, 0x3E, 0xA301, 0x3D55, 0x3D55, 0x0000, 0xA302, 0x3D55, 0x0000, 0x00000000 }, { { 'A', '7', ' ', ' ', ' ', ' ', ' ', ' '}, { ' ', ' ', ' '}, 0x27, 0x00, 0x3E, 0xA301, 0x3D55, 0x3D55, 0x0000, 0xA302, 0x3D55, 0x0000, 0x00000000 }, { { 'A', '8', ' ', ' ', ' ', ' ', ' ', ' '}, { ' ', ' ', ' '}, 0x27, 0x00, 0x3E, 0xA301, 0x3D55, 0x3D55, 0x0000, 0xA302, 0x3D55, 0x0000, 0x00000000 }, { { 'A', '9', ' ', ' ', ' ', ' ', ' ', ' '}, { ' ', ' ', ' '}, 0x27, 0x00, 0x3E, 0xA301, 0x3D55, 0x3D55, 0x0000, 0xA302, 0x3D55, 0x0000, 0x00000000 }, { { 'A', 'A', ' ', ' ', ' ', ' ', ' ', ' '}, { ' ', ' ', ' '}, 0x27, 0x00, 0x3E, 0xA301, 0x3D55, 0x3D55, 0x0000, 0xA302, 0x3D55, 0x0000, 0x00000000 }, { { 'A', 'B', ' ', ' ', ' ', ' ', ' ', ' '}, { ' ', ' ', ' '}, 0x27, 0x00, 0x3E, 0xA301, 0x3D55, 0x3D55, 0x0000, 0xA302, 0x3D55, 0x0000, 0x00000000 }, { { 'A', 'C', ' ', ' ', ' ', ' ', ' ', ' '}, { ' ', ' ', ' '}, 0x27, 0x00, 0x3E, 0xA301, 0x3D55, 0x3D55, 0x0000, 0xA302, 0x3D55, 0x0000, 0x00000000 }, { { '\0', ' ', ' ', ' ', ' ', ' ', ' ', ' '}, { ' ', ' ', ' '}, 0x00, 0x00, 0x00, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x00000000 }, // { // { 'A', 'E', ' ', ' ', ' ', ' ', ' ', ' '}, // { ' ', ' ', ' '}, // 0x27, // 0x00, // 0x3E, // 0xA301, // 0x3D55, // 0x3D55, // 0x0000, // 0xA302, // 0x3D55, // 0x0000, // 0x00000000 // } { { '\0', ' ', ' ', ' ', ' ', ' ', ' ', ' '}, { ' ', ' ', ' '}, 0x00, 0x00, 0x00, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x00000000 } }; int fat12Read( uint8_t *buffer, uint16_t sector ) { if (sector == 0) { memcpy( buffer, g_FATboot, BLOCKSIZE ) ; return TRUE; } else if ( sector == 1/*Reserved sector count*/) { // FAT table. memcpy( buffer, g_FAT, BLOCKSIZE); return TRUE; } else if ( sector == 2) { // Directory memcpy( buffer, g_DIRroot, BLOCKSIZE ) ; return TRUE; } sector -= 3 ; if ( sector < 1024 ) { ee32_read_512( sector, buffer ) ; } #ifdef REVX else if ( sector < 2048 ) #else else if ( sector < 1536 ) #endif { uint32_t address ; address = sector - 1024 ; address *= 512 ; address += 0x00400000 ; memcpy( buffer, (uint8_t *)address, BLOCKSIZE ) ; } else { memset( buffer, 0, BLOCKSIZE ) ; } return TRUE; } uint32_t program( uint32_t *address, uint32_t *buffer ) ; // size is 256 bytes uint32_t ee32_write( const uint8_t *buffer, uint32_t sector, uint32_t count ) ; int fat12Write( const uint8_t *buffer, uint16_t sector, uint32_t count ) { // TO DO, actually write to the EEPROM if ( sector >= 3 ) { sector -= 3 ; // Look for a 4K block boundary, writing 4K+ if ( sector < 1024 ) { ee32_write( buffer, sector, count ) ; } #ifdef REVX else if ( sector < 2048 ) #else else if ( sector < 1536 ) #endif { // FIRMWARE uint32_t address ; address = sector - 1024 ; address *= 512 ; address += 0x00400000 ; // Write to flash uint32_t i ; while ( count ) { for ( i = 0 ; i < 2 ; i += 1 ) { if ( address >= 0x00408000 ) // Protect bootloader { program( (uint32_t *)address, (uint32_t *) buffer ) ; // size is 256 bytes } address += 256 ; buffer += 256 ; } count -= 1 ; } } } return TRUE; }