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Repository: krikzz/open-ed
Branch: main
Commit: 703918ec1abe
Files: 48
Total size: 1.4 MB
Directory structure:
gitextract_lpxnh2on/
├── .gitattributes
├── LICENSE
├── boxart/
│ ├── open-ed_prod.eps
│ └── open-ed_sticker_prod.eps
├── fabrication/
│ ├── bom_rev.b.ods
│ └── open-ed.md
├── menu/
│ ├── Makefile
│ ├── cfg.h
│ ├── ctr0.s
│ ├── disk.c
│ ├── disk.h
│ ├── everdrive.c
│ ├── everdrive.h
│ ├── ff/
│ │ ├── 00history.txt
│ │ ├── 00readme.txt
│ │ ├── ccsbcs.c
│ │ ├── diskio.c
│ │ ├── diskio.h
│ │ ├── ff.c
│ │ ├── ff.h
│ │ ├── ffconf.h
│ │ ├── integer.h
│ │ └── syscall.c
│ ├── flash.c
│ ├── flash.h
│ ├── fmanager.c
│ ├── fmanager.h
│ ├── fs.c
│ ├── fs.h
│ ├── main.c
│ ├── main.h
│ ├── open-ed.md
│ ├── rom.ld
│ ├── spi.s
│ ├── std.c
│ ├── std.h
│ ├── sys.c
│ ├── sys.h
│ └── usb.bat
├── open-ed-mapper.txt
├── open-ed.v
├── pcb_src/
│ ├── fp-info-cache
│ ├── open-ed-Rev.B.kicad_pcb
│ ├── open-ed-Rev.B.kicad_prl
│ └── open-ed-Rev.B.kicad_pro
├── readme.md
└── schematic/
├── open-ed_rev.b.kicad_sch
└── sega_bus.kicad_sch
================================================
FILE CONTENTS
================================================
================================================
FILE: .gitattributes
================================================
# Auto detect text files and perform LF normalization
* text=auto
================================================
FILE: LICENSE
================================================
MIT License
Copyright (c) 2024 krikzz
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
================================================
FILE: menu/Makefile
================================================
GCC := e:/devtools/m68k-3.4.6/
CC := $(GCC)bin/gcc
LD := $(GCC)bin/ld
OBJC := $(GCC)bin/objcopy
OUTPUT := open-ed
LIB := $(GCC)lib
BIN := $(GCC)bin
FFDIR := ff
TS := ./tools/timestamp
SIZE := $(GCC)bin/size
MAKEFLAGS= -j
BDIR :=build
FLAGS := $(OPTION) -std=gnu99 -m68000 -Wall -O3 -fomit-frame-pointer $(INCS)
FLAGSZ80 := -c -i -x1 -x2 -x3 -z -lnul
vpath %.o $(BDIR)/
SRC_S = ctr0.s spi.s
SRC_C = $(wildcard *.c) $(wildcard $(FFDIR)/*.c)
OBJ = $(SRC_S:.s=.o)
OBJ += $(SRC_C:.c=.o)
OFILES = $(OBJ:%.o=$(BDIR)/%.o)
all: $(OBJ)
$(LD) -Map=$(BDIR)/memory.map -T rom.ld -nostdlib $(OFILES) $(LIB)/libgcc.a -o $(BDIR)/$(OUTPUT).elf
$(OBJC) --pad-to 0x1000000 -O binary $(BDIR)/$(OUTPUT).elf $(OUTPUT).md
$(TS) -f $(OUTPUT).md -a 0x1CC
@echo "Memory utilization:"
@$(SIZE) $(BDIR)/$(OUTPUT).elf
%.o: %.c
$(CC) $(FLAGS) -c $< -o $(basename $(BDIR)/$<).o
%.o: %.s
$(CC) $(FLAGS) -c $< -o $(basename $(BDIR)/$<).o
clean:
mkdir -p $(BDIR)
mkdir -p $(BDIR)/$(FFDIR)
$(RM) $(BDIR)/*.o
$(RM) $(BDIR)/*.elf
$(RM) $(BDIR)/$(FFDIR)/*.o
$(RM) $(BDIR)/memory.map
================================================
FILE: menu/cfg.h
================================================
/*
* File: cfg.h
* Author: igor
*
* Created on December 7, 2021, 4:32 PM
*/
#ifndef CFG_H
#define CFG_H
#define BORDER_X 1
#define BORDER_Y 2
#define MAX_PATH_SIZE 256
#define MAX_ROWS (G_SCREEN_H - BORDER_Y*2)
#define MAX_STR_LEN (G_SCREEN_W - BORDER_X*2)
#define MAX_SEL_STACK 32
#define MAX_ROM_SIZE 0x400000
#define MAX_BUFF_SIZE 16384
#define PAL_B1 0x0000 //black bgr, gray txt
#define PAL_B2 0x2000 //black bgr, white txt
#define PAL_B3 0x4000 //black bgr, yellow txt
#define PAL_B4 0x6000 //black bgr, green txt
#define ADDR_CART_DATE 0x1c8
#define ADDR_MENU_DATE 0x1cc
#endif /* CFG_H */
================================================
FILE: menu/ctr0.s
================================================
.text
.org 0x0000
.long 0, 0x200, BER, AER, IER, INT, INT, INT
.long INT, INT, INT, INT, INT, INT, INT, INT
.long INT, INT, INT, INT, INT, INT, INT, INT
.long INT, INT, INT, INT, HBL, INT, VBL, INT
.long INT, INT, INT, INT, INT, INT, INT, INT
.long INT, INT, INT, INT, INT, INT, INT, INT
.long INT, INT, INT, INT, INT, INT, INT, INT
.long INT, INT, INT, INT, INT, INT, INT, INT
.ascii "SEGA MEGA DRIVE " | SEGA must be the first four chars for TMSS
.ascii "KRIKzz 2021.DEC "
.ascii "OPEN-EVERDRIVE " | export name
.ascii " "
.ascii "www.krikzz.com "
.ascii "OPEN-EVERDRIVE " | domestic (Japanese) name
.ascii "Designed by "
.ascii "Igor Golubovskiy"
.ascii "GM MK-0000 -01"
.word 0x0000 | checksum - not needed
.ascii "J6 "
.long 0x00ff0000, 0x00ff7fff | ROM start, end
.long 0x00ff8000, 0x00ffffff | RAM start, end
.ascii "RA" | SRAM
.word 0xF820 | SRAM type
.long 0x00200001, 0x0023ffff | SRAM start, end
.ascii " " | modem support
.ascii " " |
.long 0x5B07F60A | cart date-time. DOS format, intel endian
.long 0x00000000 | menu date-time. DOS format, intel endian
.ascii " " |
.ascii " " |
.ascii "F " | enable any hardware configuration
RST:
move.w #0x2700, %sr | disable interrupts
tst.l 0xa10008 | check CTRL1 and CTRL2 setup
bne.b 1f
tst.w 0xa1000c | check CTRL3 setup
1:
bne.b skip_tmss | if any controller control port is setup, skip TMSS handling
move.b 0xa10001, %d0
andi.b #0x0f, %d0 | check hardware version
beq.b skip_tmss | 0 = original hardware, TMSS not present
move.l #0x53454741, 0xa14000 | Store Sega Security Code "SEGA" to TMSS
skip_tmss:
lea 0, %sp
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
lea 0xc00008, %a4 | the default global VDP hvcounter port
lea 0xc00004, %a5 | the default global VDP ctrl port
lea 0xc00000, %a6 | the default global VDP data port
move.w #0x8104, (%a5) | disable display to speed up vdp transfers
move.w #0x8f02, (%a5)
| clear cram
move.l #0xc0000000, (%a5)
move.w #0x40-1, %d0
moveq #0, %d1
1:
move.w %d1, (%a6)
dbra %d0, 1b
| clear vram
move.l #0x40000000, (%a5)
move.w #0x2000-1, %d0
moveq #0, %d1
1:
move.w %d1, (%a6)
move.w %d1, (%a6)
move.w %d1, (%a6)
move.w %d1, (%a6)
dbra %d0, 1b
| clear vsram
move.l #0x40000010, (%a5)
move.w #0x50-1, %d0
moveq #0, %d1
1:
move.w %d1, (%a6)
dbra %d0, 1b
| default vdp reg values
move.w #0x8004, (%a5)
move.w #0x8154, (%a5) | display enabled | dma disabled | vblank disabled | ntsc
move.w #0x8200, (%a5)
move.w #0x8300, (%a5)
move.w #0x8400, (%a5)
move.w #0x855e, (%a5)
move.w #0x8600, (%a5)
move.w #0x8700, (%a5)
move.w #0x8800, (%a5)
move.w #0x8900, (%a5)
move.w #0x8a00, (%a5)
move.w #0x8b00, (%a5)
move.w #0x8c81, (%a5)
move.w #0x8d00, (%a5)
move.w #0x8e00, (%a5)
move.w #0x8f02, (%a5)
move.w #0x9011, (%a5)
move.w #0x9100, (%a5)
move.w #0x9200, (%a5)
| copy code to ram
move.w #16383, %d0
move.l #0x000000, %a0
move.l #0xff0000, %a1
1:
move.l (%a0)+, (%a1)+
dbra %d0, 1b
jmp main
VBL:
HBL:
INT:
rte
BER:
move.l #0xc0000000, 0xc00004
move.w #0x00e, 0xc00000
rte
AER:
move.l #0xc0000000, 0xc00004
move.w #0x0ee, 0xc00000
rte
IER:
move.l #0xc0000000, 0xc00004
move.w #0x0e0, 0xc00000
rte
.global font_base
font_base:
.incbin "font.bin"
================================================
FILE: menu/disk.c
================================================
#include "main.h"
#define CMD0 0x40 /*software reset*/
#define CMD1 0x41 /*brings card out of idle state*/
#define CMD8 0x48 /*Reserved*/
#define CMD12 0x4C /*stop transmission on multiple block read*/
#define CMD17 0x51 /*read single block*/
#define CMD18 0x52 /*read multiple block*/
#define CMD58 0x7A /*reads the OCR register*/
#define CMD55 0x77
#define CMD41 0x69
#define CMD23 0x57
#define CMD24 0x58 /*writes a single block*/
#define CMD25 0x59 /*writes a single block*/
#define ACMD23 (23 | 0x80)
#define SD_V2 2
#define SD_HC 1
#define DISK_CMD_WAIT_TIME 512
#define DISK_CMD_REP_TIME 256
#define DISK_MODE_NOP 0
#define DISK_MODE_RD 1
#define DISK_MODE_WR 2
u8 diskInitSPI();
u8 _diskRead(u32 sd_addr, void *dst, u16 slen);
u8 _diskInitSPI();
u8 diskCloseRW();
u8 disk_card_type;
u8 disk_mode;
u32 disk_cur_addr;
u8 diskCmd(u8 cmd, u32 arg) {
u8 resp;
u8 crc = 0x00;
u16 wait = DISK_CMD_WAIT_TIME;
if (cmd == CMD8)crc = 0x87;
if (cmd == CMD0)crc = 0x95;
spi_select(SPI_SEL_SDC);
spi_w(0xff);
spi_w(cmd);
spi_w(arg >> 24);
spi_w(arg >> 16);
spi_w(arg >> 8);
spi_w(arg);
spi_w(crc);
spi_w(0xff);
resp = spi_r();
while (resp == 0xff && wait--) {
resp = spi_r();
}
spi_select(SPI_SEL_OFF);
return resp;
}
u8 diskInitSPI() {
u8 resp;
for (u16 i = 0; i < 4; i++) {
resp = _diskInitSPI();
if (resp == 0)break;
}
return resp;
}
u8 _diskInitSPI() {
u8 resp;
u16 i;
disk_card_type = 0;
disk_mode = DISK_MODE_NOP;
spi_select(SPI_SEL_OFF);
//diskCmd(CMD12, 0);
for (u16 i = 0; i < 128; i++) {
spi_w(0xff);
}
resp = diskStop();
if (resp) {
//return DISK_ERR_INIT + 0;
spi_w(0xff);
spi_w(0xff);
}
resp = diskCmd(CMD8, 0x1aa);
for (i = 0; i < 5; i++) {
spi_w(0xff);
}
if (resp == 0xff)return DISK_ERR_INIT + 1;
if (resp != 5)disk_card_type = SD_V2;
if (disk_card_type == SD_V2) {
for (i = 0; i < DISK_CMD_REP_TIME; i++) {
resp = diskCmd(CMD55, 0xffff);
if (resp == 0xff)return DISK_ERR_INIT + 2;
if (resp != 1)continue;
resp = diskCmd(CMD41, 0x40300000);
if (resp == 0xff)return DISK_ERR_INIT + 3;
if (resp != 0)continue;
break;
}
if (i >= DISK_CMD_REP_TIME)return DISK_ERR_INIT + 4;
resp = diskCmd(CMD58, 0);
if (resp == 0xff)return DISK_ERR_INIT + 5;
spi_select(SPI_SEL_SDC);
resp = spi_r();
for (i = 0; i < 3; i++) {
spi_w(0xff);
}
if ((resp & 0x40))disk_card_type |= SD_HC;
} else {
i = 0;
resp = diskCmd(CMD55, 0);
if (resp == 0xff)return DISK_ERR_INIT + 6;
resp = diskCmd(CMD41, 0);
if (resp == 0xff)return DISK_ERR_INIT + 7;
for (u16 i = 0; i < DISK_CMD_REP_TIME; i++) {
if (resp < 1) {
resp = diskCmd(CMD55, 0);
if (resp == 0xff)return DISK_ERR_INIT + 8;
if (resp != 1)continue;
resp = diskCmd(CMD41, 0);
if (resp == 0xff)return DISK_ERR_INIT + 9;
if (resp != 0)continue;
} else {
resp = diskCmd(CMD1, 0);
if (resp != 0)continue;
}
break;
}
if (i >= DISK_CMD_REP_TIME)return DISK_ERR_INIT + 10;
}
return 0;
}
u8 diskInit() {
edSetLed(ON);
u8 resp = diskInitSPI();
edSetLed(OFF);
return resp;
}
//****************************************************************************** read op
u8 diskOpenRead(u32 saddr) {
u8 resp;
if (disk_mode == DISK_MODE_RD && saddr == disk_cur_addr)return 0;
diskCloseRW();
disk_cur_addr = saddr;
if ((disk_card_type & SD_HC) == 0)saddr *= 512;
resp = diskCmd(CMD18, saddr);
if (resp != 0)return DISK_ERR_RD1;
spi_select(SPI_SEL_SDC);
disk_mode = DISK_MODE_RD;
return 0;
}
u8 _diskRead(u32 sd_addr, void *dst, u16 slen) {
u8 resp = 0;
resp = diskOpenRead(sd_addr);
if (resp)return resp;
disk_cur_addr += slen;
resp = spi_to_ram(dst, slen);
return resp;
}
u8 diskRead(u32 sd_addr, void *dst, u16 slen) {
edSetLed(ON);
u8 resp = _diskRead(sd_addr, dst, slen);
edSetLed(OFF);
return resp;
}
//****************************************************************************** var
u8 diskCloseRW() {
u8 resp;
if (disk_mode == DISK_MODE_NOP)return 0;
if (disk_mode == DISK_MODE_WR) {
resp = 0; //bi_spi_write_end();//fixme
if (resp)return resp;
}
spi_select(SPI_SEL_OFF);
diskCmd(CMD12, 0);
disk_mode = DISK_MODE_NOP;
return 0;
}
u8 diskStop() {
u8 i = 0;
u8 resp = 0;
diskCloseRW();
while (resp != 1 && i++ < 8) {
resp = diskCmd(CMD0, 0);
}
if (resp != 1) {
return DISK_ERR_STOP;
}
return 0;
}
================================================
FILE: menu/disk.h
================================================
/*
* File: disk.h
* Author: igor
*
* Created on December 7, 2021, 1:10 PM
*/
#ifndef DISK_H
#define DISK_H
#define DISK_ERR_INIT 0xC0
#define DISK_ERR_STOP 0xD0
#define DISK_ERR_RD1 0xD2
#define DISK_ERR_RD2 0xD3
#define DISK_ERR_WR1 0xD4
#define DISK_ERR_WR2 0xD5
#define DISK_ERR_WR3 0xD6
#define DISK_ERR_WR4 0xD7
#define DISK_ERR_WR5 0xD8
u8 diskInit();
u8 diskRead(u32 sd_addr, void *dst, u16 slen);
u8 diskStop();
u8 diskCloseRW();
#endif /* DISK_H */
================================================
FILE: menu/everdrive.c
================================================
#include "main.h"
#include "flash.h"
//control register
#define CTRL_REG *((vu16 *) 0xA130E0)
//ctrl write
#define CTRL_SRM_ON 0x01// 4MB ROM ro 2MB ROM + 128KB SRAM
#define CTRL_RESERVED 0x02// unused
#define CTRL_ROM_BANK 0x04// ROM bank select (1=MENU or 0=GAME)
#define CTRL_LED 0x08// led controll
#define CTRL_EXP_SS 0x10// expansion SPI chip select
#define CTRL_SDC_SS 0x20// SD card chip select (SPI)
#define CTRL_SPI_CLK 0x40// SD card clock
#define CTRL_SPI_MOSI 0x80// SD card data input
//ctrl read
#define CTRL_SPI_MISO 0x01// SD card data output
//SPI_CLK can be clocked automatically at each read of CTRL_REG
//SPI_CLK should be set in 0 for autoclocking
void spi_r_512(void *dst);
void edLoadInfo();
u16 ed_cfg;
DeviceInfo dev_inf;
u8 edInit() {
u8 resp;
edSetBank(BANK_GAME);
edSetLed(OFF);
edSetSRAM(OFF);
flashInit();
edLoadInfo();
resp = fsInit();
if (resp)return resp;
return 0;
}
void edSetBank(u16 bank) {
switch (bank) {
case BANK_GAME:
ed_cfg &= ~CTRL_ROM_BANK;
break;
case BANK_MENU:
ed_cfg |= CTRL_ROM_BANK;
break;
}
CTRL_REG = ed_cfg;
}
void edSetLed(u8 on) {
if (on) {
ed_cfg |= CTRL_LED;
} else {
ed_cfg &= ~CTRL_LED;
}
CTRL_REG = ed_cfg;
}
void edSetSRAM(u8 on) {
if (on) {
ed_cfg |= CTRL_SRM_ON;
} else {
ed_cfg &= ~CTRL_SRM_ON;
}
CTRL_REG = ed_cfg;
}
void edLoadInfo() {
edSetBank(BANK_MENU);
dev_inf.cart_date = swap16(*(vu16 *) (ADDR_CART_DATE + 0));
dev_inf.cart_time = swap16(*(vu16 *) (ADDR_CART_DATE + 2));
dev_inf.menu_date = swap16(*(vu16 *) (ADDR_MENU_DATE + 0));
dev_inf.menu_time = swap16(*(vu16 *) (ADDR_MENU_DATE + 2));
edSetBank(BANK_GAME);
dev_inf.flash_type = flashType();
}
//****************************************************************************** spi
u8 spi_rw(u8 val) {
u8 ret = 0;
for (u16 i = 0; i < 8; i++) {
CTRL_REG = (val & CTRL_SPI_MOSI) | ed_cfg;
CTRL_REG = (val & CTRL_SPI_MOSI) | ed_cfg | CTRL_SPI_CLK;
ret <<= 1;
ret |= CTRL_REG;
CTRL_REG = (val & CTRL_SPI_MOSI) | ed_cfg;
val <<= 1;
}
return ret;
}
u8 spi_r() {
u8 ret = 0;
CTRL_REG = ed_cfg | CTRL_SPI_MOSI;
for (u16 i = 0; i < 8; i++) {
CTRL_REG = ed_cfg | CTRL_SPI_MOSI | CTRL_SPI_CLK;
ret <<= 1;
ret |= CTRL_REG;
CTRL_REG = ed_cfg | CTRL_SPI_MOSI;
}
return ret;
}
void spi_w(u8 val) {
for (u16 i = 0; i < 8; i++) {
CTRL_REG = ed_cfg | (val & CTRL_SPI_MOSI);
CTRL_REG = ed_cfg | (val & CTRL_SPI_MOSI) | CTRL_SPI_CLK;
CTRL_REG = ed_cfg | (val & CTRL_SPI_MOSI);
val <<= 1;
}
}
void spi_select(u8 target) {
ed_cfg &= ~(CTRL_SDC_SS | CTRL_EXP_SS);
if (target == SPI_SEL_SDC) {
ed_cfg |= CTRL_SDC_SS;
} else if (target == SPI_SEL_EXP) {
ed_cfg |= CTRL_EXP_SS;
}
CTRL_REG = ed_cfg;
}
u8 spi_to_ram(void *dst, u8 slen) {
u8 *dst8 = (u8 *) dst;
u16 i;
while (slen--) {
spi_w(0xff);
for (i = 1; i; i++) {
if (spi_r() == 0xFE)break;
}
if (i == 0)return DISK_ERR_RD2;
spi_r_512(dst8);
dst8 += 512;
spi_w(0xff);
spi_w(0xff);
}
return 0;
}
//******************************************************************************
u8 edLoadROM(u8 *path) {
u8 resp;
u32 size;
u8 buff[MAX_BUFF_SIZE];
gCleanPlan();
resp = fileOpen(path, FA_READ);
if (resp)return resp;
size = fileAvailable();
if (size > MAX_ROM_SIZE) {
size = MAX_ROM_SIZE;
}
gProgressBar(size, sizeof (buff), 0);
edSetBank(BANK_GAME);
for (u32 i = 0; i < size;) {
u16 block = sizeof (buff);
if (i + block > size) {
block = size - i;
}
if (i % 0x10000 == 0) {
flashErase64K(i, 0);
}
resp = fileRead(buff, block);
if (resp)return resp;
flashWrite((u16 *) buff, (u16 *) i, block);
i += sizeof (buff);
gProgressBar(size, block, i);
}
resp = fileClose();
if (resp)return resp;
return 0;
}
void edStartROM(u8 stop_disk) {
if (stop_disk) {
diskStop();
}
edSetBank(BANK_GAME);
VDP_CTRL16 = 0x8006;
VDP_CTRL16 = 0x8104;
*(vu8 *) 0xa10009 = 0;
*(vu8 *) 0xa1000b = 0;
*(vu8 *) 0xa1000d = 0;
asm("move.l 0, %sp");
asm("move.l 4, %a0");
asm("jmp (%a0)");
}
u8 edIsUpdateRom() {
u8 *ref_str = "OPEN-EVERDRIVE";
u8 *rom_str = (u8 *) 0x120;
for (u16 i = 0; ref_str[i] != 0; i++) {
if (ref_str[i] != rom_str[i]) {
return 0;
}
}
return 1;
}
void edUpdateMenu() {
u8 datetime[4];
u8 buff[MAX_BUFF_SIZE];
u32 size = 0x10000;
edSetBank(BANK_MENU);
mem_copy(datetime, (void *) ADDR_CART_DATE, 4);
gProgressBar(size, sizeof (buff), 0);
flashErase64K(0, 1);
for (u32 i = 0; i < size;) {
u16 block = sizeof (buff);
if (i + block > size) {
block = size - i;
}
edSetBank(BANK_GAME);
mem_copy(buff, (void *) i, block);
edSetBank(BANK_MENU);
if (i == 0) {
//restore manufacturing date
mem_copy(&buff[ADDR_CART_DATE], datetime, 4);
}
flashWrite((u16 *) buff, (u16 *) i, block);
i += sizeof (buff);
gProgressBar(size, block, i);
}
edReboot();
}
void edReboot() {
diskStop();
edSetBank(BANK_MENU);
asm("move.l 4, %a0");
asm("jmp (%a0)");
}
================================================
FILE: menu/everdrive.h
================================================
/*
* File: everdrive.h
* Author: igor
*
* Created on December 7, 2021, 2:19 PM
*/
#ifndef SPI_H
#define SPI_H
typedef struct {
u16 flash_type;
u16 cart_date;
u16 cart_time;
u16 menu_date;
u16 menu_time;
} DeviceInfo;
#define BANK_MENU 1
#define BANK_GAME 0
#define ON 1
#define OFF 0
#define SPI_SEL_OFF 0
#define SPI_SEL_SDC 1
#define SPI_SEL_EXP 2
u8 edInit();
void edSetBank(u16 bank);
void edSetLed(u8 on);
void edSetSRAM(u8 on);
u8 spi_rw(u8 val);
void spi_w(u8 val);
u8 spi_r();
void spi_select(u8 target);
u8 spi_to_ram(void *dst, u8 slen);
u8 edLoadROM(u8 *path);
void edStartROM(u8 stop_disk);
u8 edIsUpdateRom();
void edUpdateMenu();
void edReboot();
extern DeviceInfo dev_inf;
#endif /* SPI_H */
================================================
FILE: menu/ff/00history.txt
================================================
----------------------------------------------------------------------------
Revision history of FatFs module
----------------------------------------------------------------------------
R0.00 (February 26, 2006)
Prototype.
R0.01 (April 29, 2006)
The first release.
R0.02 (June 01, 2006)
Added FAT12 support.
Removed unbuffered mode.
Fixed a problem on small (<32M) partition.
R0.02a (June 10, 2006)
Added a configuration option (_FS_MINIMUM).
R0.03 (September 22, 2006)
Added f_rename().
Changed option _FS_MINIMUM to _FS_MINIMIZE.
R0.03a (December 11, 2006)
Improved cluster scan algorithm to write files fast.
Fixed f_mkdir() creates incorrect directory on FAT32.
R0.04 (February 04, 2007)
Added f_mkfs().
Supported multiple drive system.
Changed some interfaces for multiple drive system.
Changed f_mountdrv() to f_mount().
R0.04a (April 01, 2007)
Supported multiple partitions on a physical drive.
Added a capability of extending file size to f_lseek().
Added minimization level 3.
Fixed an endian sensitive code in f_mkfs().
R0.04b (May 05, 2007)
Added a configuration option _USE_NTFLAG.
Added FSINFO support.
Fixed DBCS name can result FR_INVALID_NAME.
Fixed short seek (<= csize) collapses the file object.
R0.05 (August 25, 2007)
Changed arguments of f_read(), f_write() and f_mkfs().
Fixed f_mkfs() on FAT32 creates incorrect FSINFO.
Fixed f_mkdir() on FAT32 creates incorrect directory.
R0.05a (February 03, 2008)
Added f_truncate() and f_utime().
Fixed off by one error at FAT sub-type determination.
Fixed btr in f_read() can be mistruncated.
Fixed cached sector is not flushed when create and close without write.
R0.06 (April 01, 2008)
Added fputc(), fputs(), fprintf() and fgets().
Improved performance of f_lseek() on moving to the same or following cluster.
R0.07 (April 01, 2009)
Merged Tiny-FatFs as a configuration option. (_FS_TINY)
Added long file name feature. (_USE_LFN)
Added multiple code page feature. (_CODE_PAGE)
Added re-entrancy for multitask operation. (_FS_REENTRANT)
Added auto cluster size selection to f_mkfs().
Added rewind option to f_readdir().
Changed result code of critical errors.
Renamed string functions to avoid name collision.
R0.07a (April 14, 2009)
Septemberarated out OS dependent code on reentrant cfg.
Added multiple sector size feature.
R0.07c (June 21, 2009)
Fixed f_unlink() can return FR_OK on error.
Fixed wrong cache control in f_lseek().
Added relative path feature.
Added f_chdir() and f_chdrive().
Added proper case conversion to extended character.
R0.07e (November 03, 2009)
Septemberarated out configuration options from ff.h to ffconf.h.
Fixed f_unlink() fails to remove a sub-directory on _FS_RPATH.
Fixed name matching error on the 13 character boundary.
Added a configuration option, _LFN_UNICODE.
Changed f_readdir() to return the SFN with always upper case on non-LFN cfg.
R0.08 (May 15, 2010)
Added a memory configuration option. (_USE_LFN = 3)
Added file lock feature. (_FS_SHARE)
Added fast seek feature. (_USE_FASTSEEK)
Changed some types on the API, XCHAR->TCHAR.
Changed .fname in the FILINFO structure on Unicode cfg.
String functions support UTF-8 encoding files on Unicode cfg.
R0.08a (August 16, 2010)
Added f_getcwd(). (_FS_RPATH = 2)
Added sector erase feature. (_USE_ERASE)
Moved file lock semaphore table from fs object to the bss.
Fixed f_mkfs() creates wrong FAT32 volume.
R0.08b (January 15, 2011)
Fast seek feature is also applied to f_read() and f_write().
f_lseek() reports required table size on creating CLMP.
Extended format syntax of f_printf().
Ignores duplicated directory separators in given path name.
R0.09 (September 06, 2011)
f_mkfs() supports multiple partition to complete the multiple partition feature.
Added f_fdisk().
R0.09a (August 27, 2012)
Changed f_open() and f_opendir() reject null object pointer to avoid crash.
Changed option name _FS_SHARE to _FS_LOCK.
Fixed assertion failure due to OS/2 EA on FAT12/16 volume.
R0.09b (January 24, 2013)
Added f_setlabel() and f_getlabel().
R0.10 (October 02, 2013)
Added selection of character encoding on the file. (_STRF_ENCODE)
Added f_closedir().
Added forced full FAT scan for f_getfree(). (_FS_NOFSINFO)
Added forced mount feature with changes of f_mount().
Improved behavior of volume auto detection.
Improved write throughput of f_puts() and f_printf().
Changed argument of f_chdrive(), f_mkfs(), disk_read() and disk_write().
Fixed f_write() can be truncated when the file size is close to 4GB.
Fixed f_open(), f_mkdir() and f_setlabel() can return incorrect value on error.
R0.10a (January 15, 2014)
Added arbitrary strings as drive number in the path name. (_STR_VOLUME_ID)
Added a configuration option of minimum sector size. (_MIN_SS)
2nd argument of f_rename() can have a drive number and it will be ignored.
Fixed f_mount() with forced mount fails when drive number is >= 1. (appeared at R0.10)
Fixed f_close() invalidates the file object without volume lock.
Fixed f_closedir() returns but the volume lock is left acquired. (appeared at R0.10)
Fixed creation of an entry with LFN fails on too many SFN collisions. (appeared at R0.07)
R0.10b (May 19, 2014)
Fixed a hard error in the disk I/O layer can collapse the directory entry.
Fixed LFN entry is not deleted when delete/rename an object with lossy converted SFN. (appeared at R0.07)
R0.10c (November 09, 2014)
Added a configuration option for the platforms without RTC. (_FS_NORTC)
Changed option name _USE_ERASE to _USE_TRIM.
Fixed volume label created by Mac OS X cannot be retrieved with f_getlabel(). (appeared at R0.09b)
Fixed a potential problem of FAT access that can appear on disk error.
Fixed null pointer dereference on attempting to delete the root direcotry. (appeared at R0.08)
R0.11 (February 09, 2015)
Added f_findfirst(), f_findnext() and f_findclose(). (_USE_FIND)
Fixed f_unlink() does not remove cluster chain of the file. (appeared at R0.10c)
Fixed _FS_NORTC option does not work properly. (appeared at R0.10c)
R0.11a (September 05, 2015)
Fixed wrong media change can lead a deadlock at thread-safe configuration.
Added code page 771, 860, 861, 863, 864, 865 and 869. (_CODE_PAGE)
Removed some code pages actually not exist on the standard systems. (_CODE_PAGE)
Fixed errors in the case conversion teble of code page 437 and 850 (ff.c).
Fixed errors in the case conversion teble of Unicode (cc*.c).
R0.12 (April 12, 2016)
Added support for exFAT file system. (_FS_EXFAT)
Added f_expand(). (_USE_EXPAND)
Changed some members in FINFO structure and behavior of f_readdir().
Added an option _USE_CHMOD.
Removed an option _WORD_ACCESS.
Fixed errors in the case conversion table of Unicode (cc*.c).
R0.12a (July 10, 2016)
Added support for creating exFAT volume with some changes of f_mkfs().
Added a file open method FA_OPEN_APPEND. An f_lseek() following f_open() is no longer needed.
f_forward() is available regardless of _FS_TINY.
Fixed f_mkfs() creates wrong volume. (appeared at R0.12)
Fixed wrong memory read in create_name(). (appeared at R0.12)
Fixed compilation fails at some configurations, _USE_FASTSEEK and _USE_FORWARD.
R0.12b (September 04, 2016)
Made f_rename() be able to rename objects with the same name but case.
Fixed an error in the case conversion teble of code page 866. (ff.c)
Fixed writing data is truncated at the file offset 4GiB on the exFAT volume. (appeared at R0.12)
Fixed creating a file in the root directory of exFAT volume can fail. (appeared at R0.12)
Fixed f_mkfs() creating exFAT volume with too small cluster size can collapse unallocated memory. (appeared at R0.12)
Fixed wrong object name can be returned when read directory at Unicode cfg. (appeared at R0.12)
Fixed large file allocation/removing on the exFAT volume collapses allocation bitmap. (appeared at R0.12)
Fixed some internal errors in f_expand() and f_lseek(). (appeared at R0.12)
R0.12c (March 04, 2017)
Improved write throughput at the fragmented file on the exFAT volume.
Made memory usage for exFAT be able to be reduced as decreasing _MAX_LFN.
Fixed successive f_getfree() can return wrong count on the FAT12/16 volume. (appeared at R0.12)
Fixed configuration option _VOLUMES cannot be set 10. (appeared at R0.10c)
================================================
FILE: menu/ff/00readme.txt
================================================
FatFs Module Source Files R0.12c
FILES
00readme.txt This file.
00history.txt Revision history.
ff.c FatFs module.
ffconf.h Configuration file of FatFs module.
ff.h Common include file for FatFs and application module.
diskio.h Common include file for FatFs and disk I/O module.
diskio.c An example of glue function to attach existing disk I/O module to FatFs.
integer.h Integer type definitions for FatFs.
option Optional external modules.
Low level disk I/O module is not included in this archive because the FatFs
module is only a generic file system layer and it does not depend on any specific
storage device. You have to provide a low level disk I/O module written to
control the storage device that attached to the target system.
================================================
FILE: menu/ff/ccsbcs.c
================================================
/*------------------------------------------------------------------------*/
/* Unicode - Local code bidirectional converter (C)ChaN, 2015 */
/* (SBCS code pages) */
/*------------------------------------------------------------------------*/
/* 437 U.S.
/ 720 Arabic
/ 737 Greek
/ 771 KBL
/ 775 Baltic
/ 850 Latin 1
/ 852 Latin 2
/ 855 Cyrillic
/ 857 Turkish
/ 860 Portuguese
/ 861 Icelandic
/ 862 Hebrew
/ 863 Canadian French
/ 864 Arabic
/ 865 Nordic
/ 866 Russian
/ 869 Greek 2
*/
#include "ff.h"
#if _CODE_PAGE == 437
#define _TBLDEF 1
static
const WCHAR Tbl[] = { /* CP437(0x80-0xFF) to Unicode conversion table */
0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00E4, 0x00E0, 0x00E5, 0x00E7, 0x00EA, 0x00EB, 0x00E8, 0x00EF, 0x00EE, 0x00EC, 0x00C4, 0x00C5,
0x00C9, 0x00E6, 0x00C6, 0x00F4, 0x00F6, 0x00F2, 0x00FB, 0x00F9, 0x00FF, 0x00D6, 0x00DC, 0x00A2, 0x00A3, 0x00A5, 0x20A7, 0x0192,
0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x00F1, 0x00D1, 0x00AA, 0x00BA, 0x00BF, 0x2310, 0x00AC, 0x00BD, 0x00BC, 0x00A1, 0x00AB, 0x00BB,
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556, 0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x255B, 0x2510,
0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567,
0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B, 0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580,
0x03B1, 0x00DF, 0x0393, 0x03C0, 0x03A3, 0x03C3, 0x00B5, 0x03C4, 0x03A6, 0x0398, 0x03A9, 0x03B4, 0x221E, 0x03C6, 0x03B5, 0x2229,
0x2261, 0x00B1, 0x2265, 0x2264, 0x2320, 0x2321, 0x00F7, 0x2248, 0x00B0, 0x2219, 0x00B7, 0x221A, 0x207F, 0x00B2, 0x25A0, 0x00A0
};
#elif _CODE_PAGE == 720
#define _TBLDEF 1
static
const WCHAR Tbl[] = { /* CP720(0x80-0xFF) to Unicode conversion table */
0x0000, 0x0000, 0x00E9, 0x00E2, 0x0000, 0x00E0, 0x0000, 0x00E7, 0x00EA, 0x00EB, 0x00E8, 0x00EF, 0x00EE, 0x0000, 0x0000, 0x0000,
0x0000, 0x0651, 0x0652, 0x00F4, 0x00A4, 0x0640, 0x00FB, 0x00F9, 0x0621, 0x0622, 0x0623, 0x0624, 0x00A3, 0x0625, 0x0626, 0x0627,
0x0628, 0x0629, 0x062A, 0x062B, 0x062C, 0x062D, 0x062E, 0x062F, 0x0630, 0x0631, 0x0632, 0x0633, 0x0634, 0x0635, 0x00AB, 0x00BB,
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556, 0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x255B, 0x2510,
0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567,
0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B, 0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580,
0x0636, 0x0637, 0x0638, 0x0639, 0x063A, 0x0641, 0x00B5, 0x0642, 0x0643, 0x0644, 0x0645, 0x0646, 0x0647, 0x0648, 0x0649, 0x064A,
0x2261, 0x064B, 0x064C, 0x064D, 0x064E, 0x064F, 0x0650, 0x2248, 0x00B0, 0x2219, 0x00B7, 0x221A, 0x207F, 0x00B2, 0x25A0, 0x00A0
};
#elif _CODE_PAGE == 737
#define _TBLDEF 1
static
const WCHAR Tbl[] = { /* CP737(0x80-0xFF) to Unicode conversion table */
0x0391, 0x0392, 0x0393, 0x0394, 0x0395, 0x0396, 0x0397, 0x0398, 0x0399, 0x039A, 0x039B, 0x039C, 0x039D, 0x039E, 0x039F, 0x03A0,
0x03A1, 0x03A3, 0x03A4, 0x03A5, 0x03A6, 0x03A7, 0x03A8, 0x03A9, 0x03B1, 0x03B2, 0x03B3, 0x03B4, 0x03B5, 0x03B6, 0x03B7, 0x03B8,
0x03B9, 0x03BA, 0x03BB, 0x03BC, 0x03BD, 0x03BE, 0x03BF, 0x03C0, 0x03C1, 0x03C3, 0x03C2, 0x03C4, 0x03C5, 0x03C6, 0x03C7, 0x03C8,
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556, 0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x255B, 0x2510,
0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567,
0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B, 0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580,
0x03C9, 0x03AC, 0x03AD, 0x03AE, 0x03CA, 0x03AF, 0x03CC, 0x03CD, 0x03CB, 0x03CE, 0x0386, 0x0388, 0x0389, 0x038A, 0x038C, 0x038E,
0x038F, 0x00B1, 0x2265, 0x2264, 0x03AA, 0x03AB, 0x00F7, 0x2248, 0x00B0, 0x2219, 0x00B7, 0x221A, 0x207F, 0x00B2, 0x25A0, 0x00A0
};
#elif _CODE_PAGE == 771
#define _TBLDEF 1
static
const WCHAR Tbl[] = { /* CP771(0x80-0xFF) to Unicode conversion table */
0x0410, 0x0411, 0x0412, 0x0413, 0x0414, 0x0415, 0x0416, 0x0417, 0x0418, 0x0419, 0x041A, 0x041B, 0x041C, 0x041D, 0x041E, 0x041F,
0x0420, 0x0421, 0x0422, 0x0423, 0x0424, 0x0425, 0x0426, 0x0427, 0x0428, 0x0429, 0x042A, 0x042B, 0x042C, 0x042D, 0x042E, 0x042F,
0x0430, 0x0431, 0x0432, 0x0433, 0x0434, 0x0435, 0x0436, 0x0437, 0x0438, 0x0439, 0x043A, 0x043B, 0x043C, 0x043D, 0x043E, 0x043F,
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556, 0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x2558, 0x2510,
0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567,
0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B, 0x256A, 0x2518, 0x250C, 0x2588, 0x0104, 0x0105, 0x010C, 0x010D,
0x0440, 0x0441, 0x0442, 0x0443, 0x0444, 0x0445, 0x0446, 0x0447, 0x0448, 0x0449, 0x044A, 0x044B, 0x044C, 0x044D, 0x044E, 0x044F,
0x0118, 0x0119, 0x0116, 0x0117, 0x012E, 0x012F, 0x0160, 0x0161, 0x0172, 0x0173, 0x016A, 0x016B, 0x017D, 0x017E, 0x25A0, 0x00A0
};
#elif _CODE_PAGE == 775
#define _TBLDEF 1
static
const WCHAR Tbl[] = { /* CP775(0x80-0xFF) to Unicode conversion table */
0x0106, 0x00FC, 0x00E9, 0x0101, 0x00E4, 0x0123, 0x00E5, 0x0107, 0x0142, 0x0113, 0x0156, 0x0157, 0x012B, 0x0179, 0x00C4, 0x00C5,
0x00C9, 0x00E6, 0x00C6, 0x014D, 0x00F6, 0x0122, 0x00A2, 0x015A, 0x015B, 0x00D6, 0x00DC, 0x00F8, 0x00A3, 0x00D8, 0x00D7, 0x00A4,
0x0100, 0x012A, 0x00F3, 0x017B, 0x017C, 0x017A, 0x201D, 0x00A6, 0x00A9, 0x00AE, 0x00AC, 0x00BD, 0x00BC, 0x0141, 0x00AB, 0x00BB,
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x0104, 0x010C, 0x0118, 0x0116, 0x2563, 0x2551, 0x2557, 0x255D, 0x012E, 0x0160, 0x2510,
0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x0172, 0x016A, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x017D,
0x0105, 0x010D, 0x0119, 0x0117, 0x012F, 0x0161, 0x0173, 0x016B, 0x017E, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580,
0x00D3, 0x00DF, 0x014C, 0x0143, 0x00F5, 0x00D5, 0x00B5, 0x0144, 0x0136, 0x0137, 0x013B, 0x013C, 0x0146, 0x0112, 0x0145, 0x2019,
0x00AD, 0x00B1, 0x201C, 0x00BE, 0x00B6, 0x00A7, 0x00F7, 0x201E, 0x00B0, 0x2219, 0x00B7, 0x00B9, 0x00B3, 0x00B2, 0x25A0, 0x00A0
};
#elif _CODE_PAGE == 850
#define _TBLDEF 1
static
const WCHAR Tbl[] = { /* CP850(0x80-0xFF) to Unicode conversion table */
0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00E4, 0x00E0, 0x00E5, 0x00E7, 0x00EA, 0x00EB, 0x00E8, 0x00EF, 0x00EE, 0x00EC, 0x00C4, 0x00C5,
0x00C9, 0x00E6, 0x00C6, 0x00F4, 0x00F6, 0x00F2, 0x00FB, 0x00F9, 0x00FF, 0x00D6, 0x00DC, 0x00F8, 0x00A3, 0x00D8, 0x00D7, 0x0192,
0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x00F1, 0x00D1, 0x00AA, 0x00BA, 0x00BF, 0x00AE, 0x00AC, 0x00BD, 0x00BC, 0x00A1, 0x00AB, 0x00BB,
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x00C1, 0x00C2, 0x00C0, 0x00A9, 0x2563, 0x2551, 0x2557, 0x255D, 0x00A2, 0x00A5, 0x2510,
0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x00E3, 0x00C3, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x00A4,
0x00F0, 0x00D0, 0x00CA, 0x00CB, 0x00C8, 0x0131, 0x00CD, 0x00CE, 0x00CF, 0x2518, 0x250C, 0x2588, 0x2584, 0x00A6, 0x00CC, 0x2580,
0x00D3, 0x00DF, 0x00D4, 0x00D2, 0x00F5, 0x00D5, 0x00B5, 0x00FE, 0x00DE, 0x00DA, 0x00DB, 0x00D9, 0x00FD, 0x00DD, 0x00AF, 0x00B4,
0x00AD, 0x00B1, 0x2017, 0x00BE, 0x00B6, 0x00A7, 0x00F7, 0x00B8, 0x00B0, 0x00A8, 0x00B7, 0x00B9, 0x00B3, 0x00B2, 0x25A0, 0x00A0
};
#elif _CODE_PAGE == 852
#define _TBLDEF 1
static
const WCHAR Tbl[] = { /* CP852(0x80-0xFF) to Unicode conversion table */
0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00E4, 0x016F, 0x0107, 0x00E7, 0x0142, 0x00EB, 0x0150, 0x0151, 0x00EE, 0x0179, 0x00C4, 0x0106,
0x00C9, 0x0139, 0x013A, 0x00F4, 0x00F6, 0x013D, 0x013E, 0x015A, 0x015B, 0x00D6, 0x00DC, 0x0164, 0x0165, 0x0141, 0x00D7, 0x010D,
0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x0104, 0x0105, 0x017D, 0x017E, 0x0118, 0x0119, 0x00AC, 0x017A, 0x010C, 0x015F, 0x00AB, 0x00BB,
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x00C1, 0x00C2, 0x011A, 0x015E, 0x2563, 0x2551, 0x2557, 0x255D, 0x017B, 0x017C, 0x2510,
0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x0102, 0x0103, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x00A4,
0x0111, 0x0110, 0x010E, 0x00CB, 0x010F, 0x0147, 0x00CD, 0x00CE, 0x011B, 0x2518, 0x250C, 0x2588, 0x2584, 0x0162, 0x016E, 0x2580,
0x00D3, 0x00DF, 0x00D4, 0x0143, 0x0144, 0x0148, 0x0160, 0x0161, 0x0154, 0x00DA, 0x0155, 0x0170, 0x00FD, 0x00DD, 0x0163, 0x00B4,
0x00AD, 0x02DD, 0x02DB, 0x02C7, 0x02D8, 0x00A7, 0x00F7, 0x00B8, 0x00B0, 0x00A8, 0x02D9, 0x0171, 0x0158, 0x0159, 0x25A0, 0x00A0
};
#elif _CODE_PAGE == 855
#define _TBLDEF 1
static
const WCHAR Tbl[] = { /* CP855(0x80-0xFF) to Unicode conversion table */
0x0452, 0x0402, 0x0453, 0x0403, 0x0451, 0x0401, 0x0454, 0x0404, 0x0455, 0x0405, 0x0456, 0x0406, 0x0457, 0x0407, 0x0458, 0x0408,
0x0459, 0x0409, 0x045A, 0x040A, 0x045B, 0x040B, 0x045C, 0x040C, 0x045E, 0x040E, 0x045F, 0x040F, 0x044E, 0x042E, 0x044A, 0x042A,
0x0430, 0x0410, 0x0431, 0x0411, 0x0446, 0x0426, 0x0434, 0x0414, 0x0435, 0x0415, 0x0444, 0x0424, 0x0433, 0x0413, 0x00AB, 0x00BB,
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x0445, 0x0425, 0x0438, 0x0418, 0x2563, 0x2551, 0x2557, 0x255D, 0x0439, 0x0419, 0x2510,
0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x043A, 0x041A, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x00A4,
0x043B, 0x041B, 0x043C, 0x041C, 0x043D, 0x041D, 0x043E, 0x041E, 0x043F, 0x2518, 0x250C, 0x2588, 0x2584, 0x041F, 0x044F, 0x2580,
0x042F, 0x0440, 0x0420, 0x0441, 0x0421, 0x0442, 0x0422, 0x0443, 0x0423, 0x0436, 0x0416, 0x0432, 0x0412, 0x044C, 0x042C, 0x2116,
0x00AD, 0x044B, 0x042B, 0x0437, 0x0417, 0x0448, 0x0428, 0x044D, 0x042D, 0x0449, 0x0429, 0x0447, 0x0427, 0x00A7, 0x25A0, 0x00A0
};
#elif _CODE_PAGE == 857
#define _TBLDEF 1
static
const WCHAR Tbl[] = { /* CP857(0x80-0xFF) to Unicode conversion table */
0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00E4, 0x00E0, 0x00E5, 0x00E7, 0x00EA, 0x00EB, 0x00E8, 0x00EF, 0x00EE, 0x0131, 0x00C4, 0x00C5,
0x00C9, 0x00E6, 0x00C6, 0x00F4, 0x00F6, 0x00F2, 0x00FB, 0x00F9, 0x0130, 0x00D6, 0x00DC, 0x00F8, 0x00A3, 0x00D8, 0x015E, 0x015F,
0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x00F1, 0x00D1, 0x011E, 0x011F, 0x00BF, 0x00AE, 0x00AC, 0x00BD, 0x00BC, 0x00A1, 0x00AB, 0x00BB,
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x00C1, 0x00C2, 0x00C0, 0x00A9, 0x2563, 0x2551, 0x2557, 0x255D, 0x00A2, 0x00A5, 0x2510,
0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x00E3, 0x00C3, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x00A4,
0x00BA, 0x00AA, 0x00CA, 0x00CB, 0x00C8, 0x0000, 0x00CD, 0x00CE, 0x00CF, 0x2518, 0x250C, 0x2588, 0x2584, 0x00A6, 0x00CC, 0x2580,
0x00D3, 0x00DF, 0x00D4, 0x00D2, 0x00F5, 0x00D5, 0x00B5, 0x0000, 0x00D7, 0x00DA, 0x00DB, 0x00D9, 0x00EC, 0x00FF, 0x00AF, 0x00B4,
0x00AD, 0x00B1, 0x0000, 0x00BE, 0x00B6, 0x00A7, 0x00F7, 0x00B8, 0x00B0, 0x00A8, 0x00B7, 0x00B9, 0x00B3, 0x00B2, 0x25A0, 0x00A0
};
#elif _CODE_PAGE == 860
#define _TBLDEF 1
static
const WCHAR Tbl[] = { /* CP860(0x80-0xFF) to Unicode conversion table */
0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00E3, 0x00E0, 0x00C1, 0x00E7, 0x00EA, 0x00CA, 0x00E8, 0x00CD, 0x00D4, 0x00EC, 0x00C3, 0x00C2,
0x00C9, 0x00C0, 0x00C8, 0x00F4, 0x00F5, 0x00F2, 0x00DA, 0x00F9, 0x00CC, 0x00D5, 0x00DC, 0x00A2, 0x00A3, 0x00D9, 0x20A7, 0x00D3,
0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x00F1, 0x00D1, 0x00AA, 0x00BA, 0x00BF, 0x00D2, 0x00AC, 0x00BD, 0x00BC, 0x00A1, 0x00AB, 0x00BB,
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556, 0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x2558, 0x2510,
0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567,
0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B, 0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580,
0x03B1, 0x00DF, 0x0393, 0x03C0, 0x03A3, 0x03C3, 0x00B5, 0x03C4, 0x03A6, 0x0398, 0x03A9, 0x03B4, 0x221E, 0x03C6, 0x03B5, 0x2229,
0x2261, 0x00B1, 0x2265, 0x2264, 0x2320, 0x2321, 0x00F7, 0x2248, 0x00B0, 0x2219, 0x00B7, 0x221A, 0x207F, 0x00B2, 0x25A0, 0x00A0
};
#elif _CODE_PAGE == 861
#define _TBLDEF 1
static
const WCHAR Tbl[] = { /* CP861(0x80-0xFF) to Unicode conversion table */
0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00E4, 0x00E0, 0x00E6, 0x00E7, 0x00EA, 0x00EB, 0x00E8, 0x00D0, 0x00F0, 0x00DE, 0x00C4, 0x00C5,
0x00C9, 0x00E6, 0x00C6, 0x00F4, 0x00F6, 0x00FE, 0x00FB, 0x00DD, 0x00FD, 0x00D6, 0x00DC, 0x00F8, 0x00A3, 0x00D8, 0x20A7, 0x0192,
0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x00C1, 0x00CD, 0x00D3, 0x00DA, 0x00BF, 0x2310, 0x00AC, 0x00BD, 0x00BC, 0x00A1, 0x00AB, 0x00BB,
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556, 0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x255B, 0x2510,
0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567,
0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B, 0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580,
0x03B1, 0x00DF, 0x0393, 0x03C0, 0x03A3, 0x03C3, 0x00B5, 0x03C4, 0x03A6, 0x0398, 0x03A9, 0x03B4, 0x221E, 0x03C6, 0x03B5, 0x2229,
0x2261, 0x00B1, 0x2265, 0x2264, 0x2320, 0x2321, 0x00F7, 0x2248, 0x00B0, 0x2219, 0x00B7, 0x221A, 0x207F, 0x00B2, 0x25A0, 0x00A0
};
#elif _CODE_PAGE == 862
#define _TBLDEF 1
static
const WCHAR Tbl[] = { /* CP862(0x80-0xFF) to Unicode conversion table */
0x05D0, 0x05D1, 0x05D2, 0x05D3, 0x05D4, 0x05D5, 0x05D6, 0x05D7, 0x05D8, 0x05D9, 0x05DA, 0x05DB, 0x05DC, 0x05DD, 0x05DE, 0x05DF,
0x05E0, 0x05E1, 0x05E2, 0x05E3, 0x05E4, 0x05E5, 0x05E6, 0x05E7, 0x05E8, 0x05E9, 0x05EA, 0x00A2, 0x00A3, 0x00A5, 0x20A7, 0x0192,
0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x00F1, 0x00D1, 0x00AA, 0x00BA, 0x00BF, 0x2310, 0x00AC, 0x00BD, 0x00BC, 0x00A1, 0x00AB, 0x00BB,
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556, 0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x255B, 0x2510,
0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567,
0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B, 0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580,
0x03B1, 0x00DF, 0x0393, 0x03C0, 0x03A3, 0x03C3, 0x00B5, 0x03C4, 0x03A6, 0x0398, 0x03A9, 0x03B4, 0x221E, 0x03C6, 0x03B5, 0x2229,
0x2261, 0x00B1, 0x2265, 0x2264, 0x2320, 0x2321, 0x00F7, 0x2248, 0x00B0, 0x2219, 0x00B7, 0x221A, 0x207F, 0x00B2, 0x25A0, 0x00A0
};
#elif _CODE_PAGE == 863
#define _TBLDEF 1
static
const WCHAR Tbl[] = { /* CP863(0x80-0xFF) to Unicode conversion table */
0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00C2, 0x00E0, 0x00B6, 0x00E7, 0x00EA, 0x00EB, 0x00E8, 0x00EF, 0x00EE, 0x00EC, 0x2017, 0x00C0,
0x00C9, 0x00C8, 0x00CA, 0x00F4, 0x00CB, 0x00CF, 0x00FB, 0x00F9, 0x00A4, 0x00D4, 0x00DC, 0x00A2, 0x00A3, 0x00D9, 0x00DB, 0x0192,
0x00A6, 0x00B4, 0x00F3, 0x00FA, 0x00A8, 0x00BB, 0x00B3, 0x00AF, 0x00CE, 0x3210, 0x00AC, 0x00BD, 0x00BC, 0x00BE, 0x00AB, 0x00BB,
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556, 0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x255B, 0x2510,
0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567,
0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B, 0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580,
0x03B1, 0x00DF, 0x0393, 0x03C0, 0x03A3, 0x03C3, 0x00B5, 0x03C4, 0x03A6, 0x0398, 0x03A9, 0x03B4, 0x221E, 0x03C6, 0x03B5, 0x2219,
0x2261, 0x00B1, 0x2265, 0x2264, 0x2320, 0x2321, 0x00F7, 0x2248, 0x00B0, 0x2219, 0x00B7, 0x221A, 0x207F, 0x00B2, 0x25A0, 0x00A0
};
#elif _CODE_PAGE == 864
#define _TBLDEF 1
static
const WCHAR Tbl[] = { /* CP864(0x80-0xFF) to Unicode conversion table */
0x00B0, 0x00B7, 0x2219, 0x221A, 0x2592, 0x2500, 0x2502, 0x253C, 0x2524, 0x252C, 0x251C, 0x2534, 0x2510, 0x250C, 0x2514, 0x2518,
0x03B2, 0x221E, 0x03C6, 0x00B1, 0x00BD, 0x00BC, 0x2248, 0x00AB, 0x00BB, 0xFEF7, 0xFEF8, 0x0000, 0x0000, 0xFEFB, 0xFEFC, 0x0000,
0x00A0, 0x00AD, 0xFE82, 0x00A3, 0x00A4, 0xFE84, 0x0000, 0x20AC, 0xFE8E, 0xFE8F, 0xFE95, 0xFE99, 0x060C, 0xFE9D, 0xFEA1, 0xFEA5,
0x0660, 0x0661, 0x0662, 0x0663, 0x0664, 0x0665, 0x0666, 0x0667, 0x0668, 0x0669, 0xFED1, 0x061B, 0xFEB1, 0xFEB5, 0xFEB9, 0x061F,
0x00A2, 0xFE80, 0xFE81, 0xFE83, 0xFE85, 0xFECA, 0xFE8B, 0xFE8D, 0xFE91, 0xFE93, 0xFE97, 0xFE9B, 0xFE9F, 0xFEA3, 0xFEA7, 0xFEA9,
0xFEAB, 0xFEAD, 0xFEAF, 0xFEB3, 0xFEB7, 0xFEBB, 0xFEBF, 0xFEC1, 0xFEC5, 0xFECB, 0xFECF, 0x00A6, 0x00AC, 0x00F7, 0x00D7, 0xFEC9,
0x0640, 0xFED3, 0xFED7, 0xFEDB, 0xFEDF, 0xFEE3, 0xFEE7, 0xFEEB, 0xFEED, 0xFEEF, 0xFEF3, 0xFEBD, 0xFECC, 0xFECE, 0xFECD, 0xFEE1,
0xFE7D, 0x0651, 0xFEE5, 0xFEE9, 0xFEEC, 0xFEF0, 0xFEF2, 0xFED0, 0xFED5, 0xFEF5, 0xFEF6, 0xFEDD, 0xFED9, 0xFEF1, 0x25A0, 0x0000
};
#elif _CODE_PAGE == 865
#define _TBLDEF 1
static
const WCHAR Tbl[] = { /* CP865(0x80-0xFF) to Unicode conversion table */
0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00E4, 0x00E0, 0x00E5, 0x00E7, 0x00EA, 0x00EB, 0x00E8, 0x00EF, 0x00EE, 0x00EC, 0x00C4, 0x00C5,
0x00C5, 0x00E6, 0x00C6, 0x00F4, 0x00F6, 0x00F2, 0x00FB, 0x00F9, 0x00FF, 0x00D6, 0x00DC, 0x00F8, 0x00A3, 0x00D8, 0x20A7, 0x0192,
0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x00F1, 0x00D1, 0x00AA, 0x00BA, 0x00BF, 0x2310, 0x00AC, 0x00BD, 0x00BC, 0x00A1, 0x00AB, 0x00A4,
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556, 0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x2558, 0x2510,
0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567,
0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B, 0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580,
0x03B1, 0x00DF, 0x0393, 0x03C0, 0x03A3, 0x03C3, 0x00B5, 0x03C4, 0x03A6, 0x0398, 0x03A9, 0x03B4, 0x221E, 0x03C6, 0x03B5, 0x2229,
0x2261, 0x00B1, 0x2265, 0x2264, 0x2320, 0x2321, 0x00F7, 0x2248, 0x00B0, 0x2219, 0x00B7, 0x221A, 0x207F, 0x00B2, 0x25A0, 0x00A0
};
#elif _CODE_PAGE == 866
#define _TBLDEF 1
static
const WCHAR Tbl[] = { /* CP866(0x80-0xFF) to Unicode conversion table */
0x0410, 0x0411, 0x0412, 0x0413, 0x0414, 0x0415, 0x0416, 0x0417, 0x0418, 0x0419, 0x041A, 0x041B, 0x041C, 0x041D, 0x041E, 0x041F,
0x0420, 0x0421, 0x0422, 0x0423, 0x0424, 0x0425, 0x0426, 0x0427, 0x0428, 0x0429, 0x042A, 0x042B, 0x042C, 0x042D, 0x042E, 0x042F,
0x0430, 0x0431, 0x0432, 0x0433, 0x0434, 0x0435, 0x0436, 0x0437, 0x0438, 0x0439, 0x043A, 0x043B, 0x043C, 0x043D, 0x043E, 0x043F,
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556, 0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x255B, 0x2510,
0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567,
0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B, 0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580,
0x0440, 0x0441, 0x0442, 0x0443, 0x0444, 0x0445, 0x0446, 0x0447, 0x0448, 0x0449, 0x044A, 0x044B, 0x044C, 0x044D, 0x044E, 0x044F,
0x0401, 0x0451, 0x0404, 0x0454, 0x0407, 0x0457, 0x040E, 0x045E, 0x00B0, 0x2219, 0x00B7, 0x221A, 0x2116, 0x00A4, 0x25A0, 0x00A0
};
#elif _CODE_PAGE == 869
#define _TBLDEF 1
static
const WCHAR Tbl[] = { /* CP869(0x80-0xFF) to Unicode conversion table */
0x00B7, 0x00B7, 0x00B7, 0x00B7, 0x00B7, 0x00B7, 0x0386, 0x00B7, 0x00B7, 0x00AC, 0x00A6, 0x2018, 0x2019, 0x0388, 0x2015, 0x0389,
0x038A, 0x03AA, 0x038C, 0x00B7, 0x00B7, 0x038E, 0x03AB, 0x00A9, 0x038F, 0x00B2, 0x00B3, 0x03AC, 0x00A3, 0x03AD, 0x03AE, 0x03AF,
0x03CA, 0x0390, 0x03CC, 0x03CD, 0x0391, 0x0392, 0x0393, 0x0394, 0x0395, 0x0396, 0x0397, 0x00BD, 0x0398, 0x0399, 0x00AB, 0x00BB,
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x039A, 0x039B, 0x039C, 0x039D, 0x2563, 0x2551, 0x2557, 0x255D, 0x039E, 0x039F, 0x2510,
0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x0A30, 0x03A1, 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x03A3,
0x03A4, 0x03A5, 0x03A6, 0x03A7, 0x03A8, 0x03A9, 0x03B1, 0x03B2, 0x03B3, 0x2518, 0x250C, 0x2588, 0x2584, 0x03B4, 0x03B5, 0x2580,
0x03B6, 0x03B7, 0x03B8, 0x03B9, 0x03BA, 0x03BB, 0x03BC, 0x03BD, 0x03BE, 0x03BF, 0x03C0, 0x03C1, 0x03C3, 0x03C2, 0x03C4, 0x0384,
0x00AD, 0x00B1, 0x03C5, 0x03C6, 0x03C7, 0x00A7, 0x03C8, 0x0385, 0x00B0, 0x00A8, 0x03C9, 0x03CB, 0x03B0, 0x03CE, 0x25A0, 0x00A0
};
#endif
#if !_TBLDEF || !_USE_LFN
#error This file is not needed at current configuration. Remove from the project.
#endif
WCHAR ff_convert ( /* Converted character, Returns zero on error */
WCHAR chr, /* Character code to be converted */
UINT dir /* 0: Unicode to OEM code, 1: OEM code to Unicode */
)
{
WCHAR c;
if (chr < 0x80) { /* ASCII */
c = chr;
} else {
if (dir) { /* OEM code to Unicode */
c = (chr >= 0x100) ? 0 : Tbl[chr - 0x80];
} else { /* Unicode to OEM code */
for (c = 0; c < 0x80; c++) {
if (chr == Tbl[c]) break;
}
c = (c + 0x80) & 0xFF;
}
}
return c;
}
WCHAR ff_wtoupper ( /* Returns upper converted character */
WCHAR chr /* Unicode character to be upper converted (BMP only) */
)
{
/* Compressed upper conversion table */
static const WCHAR cvt1[] = { /* U+0000 - U+0FFF */
/* Basic Latin */
0x0061,0x031A,
/* Latin-1 Supplement */
0x00E0,0x0317, 0x00F8,0x0307, 0x00FF,0x0001,0x0178,
/* Latin Extended-A */
0x0100,0x0130, 0x0132,0x0106, 0x0139,0x0110, 0x014A,0x012E, 0x0179,0x0106,
/* Latin Extended-B */
0x0180,0x004D,0x0243,0x0181,0x0182,0x0182,0x0184,0x0184,0x0186,0x0187,0x0187,0x0189,0x018A,0x018B,0x018B,0x018D,0x018E,0x018F,0x0190,0x0191,0x0191,0x0193,0x0194,0x01F6,0x0196,0x0197,0x0198,0x0198,0x023D,0x019B,0x019C,0x019D,0x0220,0x019F,0x01A0,0x01A0,0x01A2,0x01A2,0x01A4,0x01A4,0x01A6,0x01A7,0x01A7,0x01A9,0x01AA,0x01AB,0x01AC,0x01AC,0x01AE,0x01AF,0x01AF,0x01B1,0x01B2,0x01B3,0x01B3,0x01B5,0x01B5,0x01B7,0x01B8,0x01B8,0x01BA,0x01BB,0x01BC,0x01BC,0x01BE,0x01F7,0x01C0,0x01C1,0x01C2,0x01C3,0x01C4,0x01C5,0x01C4,0x01C7,0x01C8,0x01C7,0x01CA,0x01CB,0x01CA,
0x01CD,0x0110, 0x01DD,0x0001,0x018E, 0x01DE,0x0112, 0x01F3,0x0003,0x01F1,0x01F4,0x01F4, 0x01F8,0x0128,
0x0222,0x0112, 0x023A,0x0009,0x2C65,0x023B,0x023B,0x023D,0x2C66,0x023F,0x0240,0x0241,0x0241, 0x0246,0x010A,
/* IPA Extensions */
0x0253,0x0040,0x0181,0x0186,0x0255,0x0189,0x018A,0x0258,0x018F,0x025A,0x0190,0x025C,0x025D,0x025E,0x025F,0x0193,0x0261,0x0262,0x0194,0x0264,0x0265,0x0266,0x0267,0x0197,0x0196,0x026A,0x2C62,0x026C,0x026D,0x026E,0x019C,0x0270,0x0271,0x019D,0x0273,0x0274,0x019F,0x0276,0x0277,0x0278,0x0279,0x027A,0x027B,0x027C,0x2C64,0x027E,0x027F,0x01A6,0x0281,0x0282,0x01A9,0x0284,0x0285,0x0286,0x0287,0x01AE,0x0244,0x01B1,0x01B2,0x0245,0x028D,0x028E,0x028F,0x0290,0x0291,0x01B7,
/* Greek, Coptic */
0x037B,0x0003,0x03FD,0x03FE,0x03FF, 0x03AC,0x0004,0x0386,0x0388,0x0389,0x038A, 0x03B1,0x0311,
0x03C2,0x0002,0x03A3,0x03A3, 0x03C4,0x0308, 0x03CC,0x0003,0x038C,0x038E,0x038F, 0x03D8,0x0118,
0x03F2,0x000A,0x03F9,0x03F3,0x03F4,0x03F5,0x03F6,0x03F7,0x03F7,0x03F9,0x03FA,0x03FA,
/* Cyrillic */
0x0430,0x0320, 0x0450,0x0710, 0x0460,0x0122, 0x048A,0x0136, 0x04C1,0x010E, 0x04CF,0x0001,0x04C0, 0x04D0,0x0144,
/* Armenian */
0x0561,0x0426,
0x0000
};
static const WCHAR cvt2[] = { /* U+1000 - U+FFFF */
/* Phonetic Extensions */
0x1D7D,0x0001,0x2C63,
/* Latin Extended Additional */
0x1E00,0x0196, 0x1EA0,0x015A,
/* Greek Extended */
0x1F00,0x0608, 0x1F10,0x0606, 0x1F20,0x0608, 0x1F30,0x0608, 0x1F40,0x0606,
0x1F51,0x0007,0x1F59,0x1F52,0x1F5B,0x1F54,0x1F5D,0x1F56,0x1F5F, 0x1F60,0x0608,
0x1F70,0x000E,0x1FBA,0x1FBB,0x1FC8,0x1FC9,0x1FCA,0x1FCB,0x1FDA,0x1FDB,0x1FF8,0x1FF9,0x1FEA,0x1FEB,0x1FFA,0x1FFB,
0x1F80,0x0608, 0x1F90,0x0608, 0x1FA0,0x0608, 0x1FB0,0x0004,0x1FB8,0x1FB9,0x1FB2,0x1FBC,
0x1FCC,0x0001,0x1FC3, 0x1FD0,0x0602, 0x1FE0,0x0602, 0x1FE5,0x0001,0x1FEC, 0x1FF2,0x0001,0x1FFC,
/* Letterlike Symbols */
0x214E,0x0001,0x2132,
/* Number forms */
0x2170,0x0210, 0x2184,0x0001,0x2183,
/* Enclosed Alphanumerics */
0x24D0,0x051A, 0x2C30,0x042F,
/* Latin Extended-C */
0x2C60,0x0102, 0x2C67,0x0106, 0x2C75,0x0102,
/* Coptic */
0x2C80,0x0164,
/* Georgian Supplement */
0x2D00,0x0826,
/* Full-width */
0xFF41,0x031A,
0x0000
};
const WCHAR *p;
WCHAR bc, nc, cmd;
p = chr < 0x1000 ? cvt1 : cvt2;
for (;;) {
bc = *p++; /* Get block base */
if (!bc || chr < bc) break;
nc = *p++; cmd = nc >> 8; nc &= 0xFF; /* Get processing command and block size */
if (chr < bc + nc) { /* In the block? */
switch (cmd) {
case 0: chr = p[chr - bc]; break; /* Table conversion */
case 1: chr -= (chr - bc) & 1; break; /* Case pairs */
case 2: chr -= 16; break; /* Shift -16 */
case 3: chr -= 32; break; /* Shift -32 */
case 4: chr -= 48; break; /* Shift -48 */
case 5: chr -= 26; break; /* Shift -26 */
case 6: chr += 8; break; /* Shift +8 */
case 7: chr -= 80; break; /* Shift -80 */
case 8: chr -= 0x1C60; break; /* Shift -0x1C60 */
}
break;
}
if (!cmd) p += nc;
}
return chr;
}
================================================
FILE: menu/ff/diskio.c
================================================
/*-----------------------------------------------------------------------*/
/* Low level disk I/O module skeleton for FatFs (C)ChaN, 2016 */
/*-----------------------------------------------------------------------*/
/* If a working storage control module is available, it should be */
/* attached to the FatFs via a glue function rather than modifying it. */
/* This is an example of glue functions to attach various exsisting */
/* storage control modules to the FatFs module with a defined API. */
/*-----------------------------------------------------------------------*/
#include "ff.h" /* Obtains integer types */
#include "diskio.h" /* Declarations of disk functions */
#include "../main.h"
//#include "everdrive.h"
/* Definitions of physical drive number for each drive */
#define DEV_RAM 0 /* Example: Map Ramdisk to physical drive 0 */
#define DEV_MMC 1 /* Example: Map MMC/SD card to physical drive 1 */
#define DEV_USB 2 /* Example: Map USB MSD to physical drive 2 */
//extern SD_HandleTypeDef hsd;
/*-----------------------------------------------------------------------*/
/* Get Drive Status */
/*-----------------------------------------------------------------------*/
DSTATUS dstat;
BYTE dresp;
DSTATUS disk_status(
BYTE pdrv /* Physical drive nmuber to identify the drive */
) {
return dstat;
}
/*-----------------------------------------------------------------------*/
/* Inidialize a Drive */
/*-----------------------------------------------------------------------*/
DSTATUS disk_initialize(
BYTE pdrv /* Physical drive nmuber to identify the drive */
) {
dresp = diskInit();
dstat = 0;
if (dresp)dstat = STA_NOINIT;
return dstat;
}
/*-----------------------------------------------------------------------*/
/* Read Sector(s) */
/*-----------------------------------------------------------------------*/
DRESULT disk_read(
BYTE pdrv, /* Physical drive nmuber to identify the drive */
BYTE *buff, /* Data buffer to store read data */
DWORD sector, /* Start sector in LBA */
UINT count /* Number of sectors to read */
) {
dresp = diskRead(sector, buff, count);
if (dresp)return RES_ERROR;
return RES_OK;
}
/*-----------------------------------------------------------------------*/
/* Write Sector(s) */
/*-----------------------------------------------------------------------*/
#if _FS_READONLY == 0
DRESULT disk_write(
BYTE pdrv, /* Physical drive nmuber to identify the drive */
const BYTE *buff, /* Data to be written */
DWORD sector, /* Start sector in LBA */
UINT count /* Number of sectors to write */
) {
dresp = diskWrite(sector, (BYTE *) buff, count);
if (dresp)return RES_ERROR;
return RES_OK;
}
#endif
/*-----------------------------------------------------------------------*/
/* Miscellaneous Functions */
/*-----------------------------------------------------------------------*/
DRESULT disk_ioctl(
BYTE pdrv, /* Physical drive nmuber (0..) */
BYTE cmd, /* Control code */
void *buff /* Buffer to send/receive control data */
) {
DRESULT res = RES_ERROR;
switch (cmd) {
case CTRL_SYNC:
res = diskCloseRW();
dresp = res;
res = res == 0 ? RES_OK : RES_ERROR;
break;
case GET_SECTOR_COUNT:
*(DWORD*) buff = 0;
res = RES_OK;
break;
case GET_SECTOR_SIZE:
*(DWORD*) buff = 512;
res = RES_OK;
break;
case GET_BLOCK_SIZE:
*(DWORD*) buff = 512;
res = RES_OK;
break;
}
return res;
}
================================================
FILE: menu/ff/diskio.h
================================================
/*-----------------------------------------------------------------------/
/ Low level disk interface modlue include file (C)ChaN, 2014 /
/-----------------------------------------------------------------------*/
#ifndef _DISKIO_DEFINED
#define _DISKIO_DEFINED
#ifdef __cplusplus
extern "C" {
#endif
#include "integer.h"
/* Status of Disk Functions */
typedef BYTE DSTATUS;
/* Results of Disk Functions */
typedef enum {
RES_OK = 0, /* 0: Successful */
RES_ERROR, /* 1: R/W Error */
RES_WRPRT, /* 2: Write Protected */
RES_NOTRDY, /* 3: Not Ready */
RES_PARERR /* 4: Invalid Parameter */
} DRESULT;
/*---------------------------------------*/
/* Prototypes for disk control functions */
DSTATUS disk_initialize (BYTE pdrv);
DSTATUS disk_status (BYTE pdrv);
DRESULT disk_read (BYTE pdrv, BYTE* buff, DWORD sector, UINT count);
DRESULT disk_write (BYTE pdrv, const BYTE* buff, DWORD sector, UINT count);
DRESULT disk_ioctl (BYTE pdrv, BYTE cmd, void* buff);
/* Disk Status Bits (DSTATUS) */
#define STA_NOINIT 0x01 /* Drive not initialized */
#define STA_NODISK 0x02 /* No medium in the drive */
#define STA_PROTECT 0x04 /* Write protected */
/* Command code for disk_ioctrl fucntion */
/* Generic command (Used by FatFs) */
#define CTRL_SYNC 0 /* Complete pending write process (needed at _FS_READONLY == 0) */
#define GET_SECTOR_COUNT 1 /* Get media size (needed at _USE_MKFS == 1) */
#define GET_SECTOR_SIZE 2 /* Get sector size (needed at _MAX_SS != _MIN_SS) */
#define GET_BLOCK_SIZE 3 /* Get erase block size (needed at _USE_MKFS == 1) */
#define CTRL_TRIM 4 /* Inform device that the data on the block of sectors is no longer used (needed at _USE_TRIM == 1) */
/* Generic command (Not used by FatFs) */
#define CTRL_POWER 5 /* Get/Set power status */
#define CTRL_LOCK 6 /* Lock/Unlock media removal */
#define CTRL_EJECT 7 /* Eject media */
#define CTRL_FORMAT 8 /* Create physical format on the media */
/* MMC/SDC specific ioctl command */
#define MMC_GET_TYPE 10 /* Get card type */
#define MMC_GET_CSD 11 /* Get CSD */
#define MMC_GET_CID 12 /* Get CID */
#define MMC_GET_OCR 13 /* Get OCR */
#define MMC_GET_SDSTAT 14 /* Get SD status */
#define ISDIO_READ 55 /* Read data form SD iSDIO register */
#define ISDIO_WRITE 56 /* Write data to SD iSDIO register */
#define ISDIO_MRITE 57 /* Masked write data to SD iSDIO register */
/* ATA/CF specific ioctl command */
#define ATA_GET_REV 20 /* Get F/W revision */
#define ATA_GET_MODEL 21 /* Get model name */
#define ATA_GET_SN 22 /* Get serial number */
#ifdef __cplusplus
}
#endif
#endif
================================================
FILE: menu/ff/ff.c
================================================
/*----------------------------------------------------------------------------/
/ FatFs - Generic FAT file system module R0.12c /
/-----------------------------------------------------------------------------/
/
/ Copyright (C) 2017, ChaN, all right reserved.
/
/ FatFs module is an open source software. Redistribution and use of FatFs in
/ source and binary forms, with or without modification, are permitted provided
/ that the following condition is met:
/
/ 1. Redistributions of source code must retain the above copyright notice,
/ this condition and the following disclaimer.
/
/ This software is provided by the copyright holder and contributors "AS IS"
/ and any warranties related to this software are DISCLAIMED.
/ The copyright owner or contributors be NOT LIABLE for any damages caused
/ by use of this software.
/----------------------------------------------------------------------------*/
#include "ff.h" /* Declarations of FatFs API */
#include "diskio.h" /* Declarations of device I/O functions */
/*--------------------------------------------------------------------------
Module Private Definitions
---------------------------------------------------------------------------*/
#if _FATFS != 68300 /* Revision ID */
#error Wrong include file (ff.h).
#endif
/* DBCS code ranges and SBCS upper conversion tables */
#if _CODE_PAGE == 932 /* Japanese Shift-JIS */
#define _DF1S 0x81 /* DBC 1st byte range 1 start */
#define _DF1E 0x9F /* DBC 1st byte range 1 end */
#define _DF2S 0xE0 /* DBC 1st byte range 2 start */
#define _DF2E 0xFC /* DBC 1st byte range 2 end */
#define _DS1S 0x40 /* DBC 2nd byte range 1 start */
#define _DS1E 0x7E /* DBC 2nd byte range 1 end */
#define _DS2S 0x80 /* DBC 2nd byte range 2 start */
#define _DS2E 0xFC /* DBC 2nd byte range 2 end */
#elif _CODE_PAGE == 936 /* Simplified Chinese GBK */
#define _DF1S 0x81
#define _DF1E 0xFE
#define _DS1S 0x40
#define _DS1E 0x7E
#define _DS2S 0x80
#define _DS2E 0xFE
#elif _CODE_PAGE == 949 /* Korean */
#define _DF1S 0x81
#define _DF1E 0xFE
#define _DS1S 0x41
#define _DS1E 0x5A
#define _DS2S 0x61
#define _DS2E 0x7A
#define _DS3S 0x81
#define _DS3E 0xFE
#elif _CODE_PAGE == 950 /* Traditional Chinese Big5 */
#define _DF1S 0x81
#define _DF1E 0xFE
#define _DS1S 0x40
#define _DS1E 0x7E
#define _DS2S 0xA1
#define _DS2E 0xFE
#elif _CODE_PAGE == 437 /* U.S. */
#define _DF1S 0
#define _EXCVT {0x80,0x9A,0x45,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \
0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
#elif _CODE_PAGE == 720 /* Arabic */
#define _DF1S 0
#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
#elif _CODE_PAGE == 737 /* Greek */
#define _DF1S 0
#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
0x90,0x92,0x92,0x93,0x94,0x95,0x96,0x97,0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87, \
0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0xAA,0x92,0x93,0x94,0x95,0x96, \
0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0x97,0xEA,0xEB,0xEC,0xE4,0xED,0xEE,0xEF,0xF5,0xF0,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
#elif _CODE_PAGE == 771 /* KBL */
#define _DF1S 0
#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDC,0xDE,0xDE, \
0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFE,0xFF}
#elif _CODE_PAGE == 775 /* Baltic */
#define _DF1S 0
#define _EXCVT {0x80,0x9A,0x91,0xA0,0x8E,0x95,0x8F,0x80,0xAD,0xED,0x8A,0x8A,0xA1,0x8D,0x8E,0x8F, \
0x90,0x92,0x92,0xE2,0x99,0x95,0x96,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
0xA0,0xA1,0xE0,0xA3,0xA3,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xA5,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE3,0xE8,0xE8,0xEA,0xEA,0xEE,0xED,0xEE,0xEF, \
0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
#elif _CODE_PAGE == 850 /* Latin 1 */
#define _DF1S 0
#define _EXCVT {0x43,0x55,0x45,0x41,0x41,0x41,0x41,0x43,0x45,0x45,0x45,0x49,0x49,0x49,0x41,0x41, \
0x45,0x92,0x92,0x4F,0x4F,0x4F,0x55,0x55,0x59,0x4F,0x55,0x4F,0x9C,0x4F,0x9E,0x9F, \
0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
0xB0,0xB1,0xB2,0xB3,0xB4,0x41,0x41,0x41,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0x41,0x41,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
0xD1,0xD1,0x45,0x45,0x45,0x49,0x49,0x49,0x49,0xD9,0xDA,0xDB,0xDC,0xDD,0x49,0xDF, \
0x4F,0xE1,0x4F,0x4F,0x4F,0x4F,0xE6,0xE8,0xE8,0x55,0x55,0x55,0x59,0x59,0xEE,0xEF, \
0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
#elif _CODE_PAGE == 852 /* Latin 2 */
#define _DF1S 0
#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xDE,0x8F,0x80,0x9D,0xD3,0x8A,0x8A,0xD7,0x8D,0x8E,0x8F, \
0x90,0x91,0x91,0xE2,0x99,0x95,0x95,0x97,0x97,0x99,0x9A,0x9B,0x9B,0x9D,0x9E,0xAC, \
0xB5,0xD6,0xE0,0xE9,0xA4,0xA4,0xA6,0xA6,0xA8,0xA8,0xAA,0x8D,0xAC,0xB8,0xAE,0xAF, \
0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBD,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC6,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
0xD1,0xD1,0xD2,0xD3,0xD2,0xD5,0xD6,0xD7,0xB7,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0xE0,0xE1,0xE2,0xE3,0xE3,0xD5,0xE6,0xE6,0xE8,0xE9,0xE8,0xEB,0xED,0xED,0xDD,0xEF, \
0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xEB,0xFC,0xFC,0xFE,0xFF}
#elif _CODE_PAGE == 855 /* Cyrillic */
#define _DF1S 0
#define _EXCVT {0x81,0x81,0x83,0x83,0x85,0x85,0x87,0x87,0x89,0x89,0x8B,0x8B,0x8D,0x8D,0x8F,0x8F, \
0x91,0x91,0x93,0x93,0x95,0x95,0x97,0x97,0x99,0x99,0x9B,0x9B,0x9D,0x9D,0x9F,0x9F, \
0xA1,0xA1,0xA3,0xA3,0xA5,0xA5,0xA7,0xA7,0xA9,0xA9,0xAB,0xAB,0xAD,0xAD,0xAE,0xAF, \
0xB0,0xB1,0xB2,0xB3,0xB4,0xB6,0xB6,0xB8,0xB8,0xB9,0xBA,0xBB,0xBC,0xBE,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
0xD1,0xD1,0xD3,0xD3,0xD5,0xD5,0xD7,0xD7,0xDD,0xD9,0xDA,0xDB,0xDC,0xDD,0xE0,0xDF, \
0xE0,0xE2,0xE2,0xE4,0xE4,0xE6,0xE6,0xE8,0xE8,0xEA,0xEA,0xEC,0xEC,0xEE,0xEE,0xEF, \
0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFD,0xFE,0xFF}
#elif _CODE_PAGE == 857 /* Turkish */
#define _DF1S 0
#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0x49,0x8E,0x8F, \
0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x98,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9E, \
0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA6,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
0xD0,0xD1,0xD2,0xD3,0xD4,0x49,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xDE,0xED,0xEE,0xEF, \
0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
#elif _CODE_PAGE == 860 /* Portuguese */
#define _DF1S 0
#define _EXCVT {0x80,0x9A,0x90,0x8F,0x8E,0x91,0x86,0x80,0x89,0x89,0x92,0x8B,0x8C,0x98,0x8E,0x8F, \
0x90,0x91,0x92,0x8C,0x99,0xA9,0x96,0x9D,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
0x86,0x8B,0x9F,0x96,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
#elif _CODE_PAGE == 861 /* Icelandic */
#define _DF1S 0
#define _EXCVT {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x8B,0x8B,0x8D,0x8E,0x8F, \
0x90,0x92,0x92,0x4F,0x99,0x8D,0x55,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
0xA4,0xA5,0xA6,0xA7,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
#elif _CODE_PAGE == 862 /* Hebrew */
#define _DF1S 0
#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
#elif _CODE_PAGE == 863 /* Canadian-French */
#define _DF1S 0
#define _EXCVT {0x43,0x55,0x45,0x41,0x41,0x41,0x86,0x43,0x45,0x45,0x45,0x49,0x49,0x8D,0x41,0x8F, \
0x45,0x45,0x45,0x4F,0x45,0x49,0x55,0x55,0x98,0x4F,0x55,0x9B,0x9C,0x55,0x55,0x9F, \
0xA0,0xA1,0x4F,0x55,0xA4,0xA5,0xA6,0xA7,0x49,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
#elif _CODE_PAGE == 864 /* Arabic */
#define _DF1S 0
#define _EXCVT {0x80,0x9A,0x45,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \
0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
#elif _CODE_PAGE == 865 /* Nordic */
#define _DF1S 0
#define _EXCVT {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \
0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
#elif _CODE_PAGE == 866 /* Russian */
#define _DF1S 0
#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
#elif _CODE_PAGE == 869 /* Greek 2 */
#define _DF1S 0
#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x86,0x9C,0x8D,0x8F,0x90, \
0x91,0x90,0x92,0x95,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xA4,0xA5,0xA6,0xD9,0xDA,0xDB,0xDC,0xA7,0xA8,0xDF, \
0xA9,0xAA,0xAC,0xAD,0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xCF,0xCF,0xD0,0xEF, \
0xF0,0xF1,0xD1,0xD2,0xD3,0xF5,0xD4,0xF7,0xF8,0xF9,0xD5,0x96,0x95,0x98,0xFE,0xFF}
#elif _CODE_PAGE == 1 /* ASCII (for only non-LFN cfg) */
#if _USE_LFN != 0
#error Cannot enable LFN without valid code page.
#endif
#define _DF1S 0
#else
#error Unknown code page
#endif
/* Character code support macros */
#define IsUpper(c) (((c)>='A')&&((c)<='Z'))
#define IsLower(c) (((c)>='a')&&((c)<='z'))
#define IsDigit(c) (((c)>='0')&&((c)<='9'))
#if _DF1S != 0 /* Code page is DBCS */
#ifdef _DF2S /* Two 1st byte areas */
#define IsDBCS1(c) (((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) || ((BYTE)(c) >= _DF2S && (BYTE)(c) <= _DF2E))
#else /* One 1st byte area */
#define IsDBCS1(c) ((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E)
#endif
#ifdef _DS3S /* Three 2nd byte areas */
#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) || ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E) || ((BYTE)(c) >= _DS3S && (BYTE)(c) <= _DS3E))
#else /* Two 2nd byte areas */
#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) || ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E))
#endif
#else /* Code page is SBCS */
#define IsDBCS1(c) 0
#define IsDBCS2(c) 0
#endif /* _DF1S */
/* Additional file attribute bits for internal use */
#define AM_VOL 0x08 /* Volume label */
#define AM_LFN 0x0F /* LFN entry */
#define AM_MASK 0x3F /* Mask of defined bits */
/* Additional file access control and file status flags for internal use */
#define FA_SEEKEND 0x20 /* Seek to end of the file on file open */
#define FA_MODIFIED 0x40 /* File has been modified */
#define FA_DIRTY 0x80 /* FIL.buf[] needs to be written-back */
/* Name status flags in fn[] */
#define NSFLAG 11 /* Index of the name status byte */
#define NS_LOSS 0x01 /* Out of 8.3 format */
#define NS_LFN 0x02 /* Force to create LFN entry */
#define NS_LAST 0x04 /* Last segment */
#define NS_BODY 0x08 /* Lower case flag (body) */
#define NS_EXT 0x10 /* Lower case flag (ext) */
#define NS_DOT 0x20 /* Dot entry */
#define NS_NOLFN 0x40 /* Do not find LFN */
#define NS_NONAME 0x80 /* Not followed */
/* Limits and boundaries */
#define MAX_DIR 0x200000 /* Max size of FAT directory */
#define MAX_DIR_EX 0x10000000 /* Max size of exFAT directory */
#define MAX_FAT12 0xFF5 /* Max FAT12 clusters (differs from specs, but correct for real DOS/Windows behavior) */
#define MAX_FAT16 0xFFF5 /* Max FAT16 clusters (differs from specs, but correct for real DOS/Windows behavior) */
#define MAX_FAT32 0x0FFFFFF5 /* Max FAT32 clusters (not specified, practical limit) */
#define MAX_EXFAT 0x7FFFFFFD /* Max exFAT clusters (differs from specs, implementation limit) */
/* FatFs refers the FAT structure as simple byte array instead of structure member
/ because the C structure is not binary compatible between different platforms */
#define BS_JmpBoot 0 /* x86 jump instruction (3-byte) */
#define BS_OEMName 3 /* OEM name (8-byte) */
#define BPB_BytsPerSec 11 /* Sector size [byte] (WORD) */
#define BPB_SecPerClus 13 /* Cluster size [sector] (BYTE) */
#define BPB_RsvdSecCnt 14 /* Size of reserved area [sector] (WORD) */
#define BPB_NumFATs 16 /* Number of FATs (BYTE) */
#define BPB_RootEntCnt 17 /* Size of root directory area for FAT12/16 [entry] (WORD) */
#define BPB_TotSec16 19 /* Volume size (16-bit) [sector] (WORD) */
#define BPB_Media 21 /* Media descriptor byte (BYTE) */
#define BPB_FATSz16 22 /* FAT size (16-bit) [sector] (WORD) */
#define BPB_SecPerTrk 24 /* Track size for int13h [sector] (WORD) */
#define BPB_NumHeads 26 /* Number of heads for int13h (WORD) */
#define BPB_HiddSec 28 /* Volume offset from top of the drive (DWORD) */
#define BPB_TotSec32 32 /* Volume size (32-bit) [sector] (DWORD) */
#define BS_DrvNum 36 /* Physical drive number for int13h (BYTE) */
#define BS_NTres 37 /* Error flag (BYTE) */
#define BS_BootSig 38 /* Extended boot signature (BYTE) */
#define BS_VolID 39 /* Volume serial number (DWORD) */
#define BS_VolLab 43 /* Volume label string (8-byte) */
#define BS_FilSysType 54 /* File system type string (8-byte) */
#define BS_BootCode 62 /* Boot code (448-byte) */
#define BS_55AA 510 /* Signature word (WORD) */
#define BPB_FATSz32 36 /* FAT32: FAT size [sector] (DWORD) */
#define BPB_ExtFlags32 40 /* FAT32: Extended flags (WORD) */
#define BPB_FSVer32 42 /* FAT32: File system version (WORD) */
#define BPB_RootClus32 44 /* FAT32: Root directory cluster (DWORD) */
#define BPB_FSInfo32 48 /* FAT32: Offset of FSINFO sector (WORD) */
#define BPB_BkBootSec32 50 /* FAT32: Offset of backup boot sector (WORD) */
#define BS_DrvNum32 64 /* FAT32: Physical drive number for int13h (BYTE) */
#define BS_NTres32 65 /* FAT32: Error flag (BYTE) */
#define BS_BootSig32 66 /* FAT32: Extended boot signature (BYTE) */
#define BS_VolID32 67 /* FAT32: Volume serial number (DWORD) */
#define BS_VolLab32 71 /* FAT32: Volume label string (8-byte) */
#define BS_FilSysType32 82 /* FAT32: File system type string (8-byte) */
#define BS_BootCode32 90 /* FAT32: Boot code (420-byte) */
#define BPB_ZeroedEx 11 /* exFAT: MBZ field (53-byte) */
#define BPB_VolOfsEx 64 /* exFAT: Volume offset from top of the drive [sector] (QWORD) */
#define BPB_TotSecEx 72 /* exFAT: Volume size [sector] (QWORD) */
#define BPB_FatOfsEx 80 /* exFAT: FAT offset from top of the volume [sector] (DWORD) */
#define BPB_FatSzEx 84 /* exFAT: FAT size [sector] (DWORD) */
#define BPB_DataOfsEx 88 /* exFAT: Data offset from top of the volume [sector] (DWORD) */
#define BPB_NumClusEx 92 /* exFAT: Number of clusters (DWORD) */
#define BPB_RootClusEx 96 /* exFAT: Root directory start cluster (DWORD) */
#define BPB_VolIDEx 100 /* exFAT: Volume serial number (DWORD) */
#define BPB_FSVerEx 104 /* exFAT: File system version (WORD) */
#define BPB_VolFlagEx 106 /* exFAT: Volume flags (BYTE) */
#define BPB_ActFatEx 107 /* exFAT: Active FAT flags (BYTE) */
#define BPB_BytsPerSecEx 108 /* exFAT: Log2 of sector size in unit of byte (BYTE) */
#define BPB_SecPerClusEx 109 /* exFAT: Log2 of cluster size in unit of sector (BYTE) */
#define BPB_NumFATsEx 110 /* exFAT: Number of FATs (BYTE) */
#define BPB_DrvNumEx 111 /* exFAT: Physical drive number for int13h (BYTE) */
#define BPB_PercInUseEx 112 /* exFAT: Percent in use (BYTE) */
#define BPB_RsvdEx 113 /* exFAT: Reserved (7-byte) */
#define BS_BootCodeEx 120 /* exFAT: Boot code (390-byte) */
#define DIR_Name 0 /* Short file name (11-byte) */
#define DIR_Attr 11 /* Attribute (BYTE) */
#define DIR_NTres 12 /* Lower case flag (BYTE) */
#define DIR_CrtTime10 13 /* Created time sub-second (BYTE) */
#define DIR_CrtTime 14 /* Created time (DWORD) */
#define DIR_LstAccDate 18 /* Last accessed date (WORD) */
#define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (WORD) */
#define DIR_ModTime 22 /* Modified time (DWORD) */
#define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (WORD) */
#define DIR_FileSize 28 /* File size (DWORD) */
#define LDIR_Ord 0 /* LFN: LFN order and LLE flag (BYTE) */
#define LDIR_Attr 11 /* LFN: LFN attribute (BYTE) */
#define LDIR_Type 12 /* LFN: Entry type (BYTE) */
#define LDIR_Chksum 13 /* LFN: Checksum of the SFN (BYTE) */
#define LDIR_FstClusLO 26 /* LFN: MBZ field (WORD) */
#define XDIR_Type 0 /* exFAT: Type of exFAT directory entry (BYTE) */
#define XDIR_NumLabel 1 /* exFAT: Number of volume label characters (BYTE) */
#define XDIR_Label 2 /* exFAT: Volume label (11-WORD) */
#define XDIR_CaseSum 4 /* exFAT: Sum of case conversion table (DWORD) */
#define XDIR_NumSec 1 /* exFAT: Number of secondary entries (BYTE) */
#define XDIR_SetSum 2 /* exFAT: Sum of the set of directory entries (WORD) */
#define XDIR_Attr 4 /* exFAT: File attribute (WORD) */
#define XDIR_CrtTime 8 /* exFAT: Created time (DWORD) */
#define XDIR_ModTime 12 /* exFAT: Modified time (DWORD) */
#define XDIR_AccTime 16 /* exFAT: Last accessed time (DWORD) */
#define XDIR_CrtTime10 20 /* exFAT: Created time subsecond (BYTE) */
#define XDIR_ModTime10 21 /* exFAT: Modified time subsecond (BYTE) */
#define XDIR_CrtTZ 22 /* exFAT: Created timezone (BYTE) */
#define XDIR_ModTZ 23 /* exFAT: Modified timezone (BYTE) */
#define XDIR_AccTZ 24 /* exFAT: Last accessed timezone (BYTE) */
#define XDIR_GenFlags 33 /* exFAT: General secondary flags (WORD) */
#define XDIR_NumName 35 /* exFAT: Number of file name characters (BYTE) */
#define XDIR_NameHash 36 /* exFAT: Hash of file name (WORD) */
#define XDIR_ValidFileSize 40 /* exFAT: Valid file size (QWORD) */
#define XDIR_FstClus 52 /* exFAT: First cluster of the file data (DWORD) */
#define XDIR_FileSize 56 /* exFAT: File/Directory size (QWORD) */
#define SZDIRE 32 /* Size of a directory entry */
#define DDEM 0xE5 /* Deleted directory entry mark set to DIR_Name[0] */
#define RDDEM 0x05 /* Replacement of the character collides with DDEM */
#define LLEF 0x40 /* Last long entry flag in LDIR_Ord */
#define FSI_LeadSig 0 /* FAT32 FSI: Leading signature (DWORD) */
#define FSI_StrucSig 484 /* FAT32 FSI: Structure signature (DWORD) */
#define FSI_Free_Count 488 /* FAT32 FSI: Number of free clusters (DWORD) */
#define FSI_Nxt_Free 492 /* FAT32 FSI: Last allocated cluster (DWORD) */
#define MBR_Table 446 /* MBR: Offset of partition table in the MBR */
#define SZ_PTE 16 /* MBR: Size of a partition table entry */
#define PTE_Boot 0 /* MBR PTE: Boot indicator */
#define PTE_StHead 1 /* MBR PTE: Start head */
#define PTE_StSec 2 /* MBR PTE: Start sector */
#define PTE_StCyl 3 /* MBR PTE: Start cylinder */
#define PTE_System 4 /* MBR PTE: System ID */
#define PTE_EdHead 5 /* MBR PTE: End head */
#define PTE_EdSec 6 /* MBR PTE: End sector */
#define PTE_EdCyl 7 /* MBR PTE: End cylinder */
#define PTE_StLba 8 /* MBR PTE: Start in LBA */
#define PTE_SizLba 12 /* MBR PTE: Size in LBA */
/* Post process after fatal error on file operation */
#define ABORT(fs, res) { fp->err = (BYTE)(res); LEAVE_FF(fs, res); }
/* Reentrancy related */
#if _FS_REENTRANT
#if _USE_LFN == 1
#error Static LFN work area cannot be used at thread-safe configuration
#endif
#define ENTER_FF(fs) { if (!lock_fs(fs)) return FR_TIMEOUT; }
#define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; }
#else
#define ENTER_FF(fs)
#define LEAVE_FF(fs, res) return res
#endif
/* Definitions of volume - partition conversion */
#if _MULTI_PARTITION
#define LD2PD(vol) VolToPart[vol].pd /* Get physical drive number */
#define LD2PT(vol) VolToPart[vol].pt /* Get partition index */
#else
#define LD2PD(vol) (BYTE)(vol) /* Each logical drive is bound to the same physical drive number */
#define LD2PT(vol) 0 /* Find first valid partition or in SFD */
#endif
/* Definitions of sector size */
#if (_MAX_SS < _MIN_SS) || (_MAX_SS != 512 && _MAX_SS != 1024 && _MAX_SS != 2048 && _MAX_SS != 4096) || (_MIN_SS != 512 && _MIN_SS != 1024 && _MIN_SS != 2048 && _MIN_SS != 4096)
#error Wrong sector size configuration
#endif
#if _MAX_SS == _MIN_SS
#define SS(fs) ((UINT)_MAX_SS) /* Fixed sector size */
#else
#define SS(fs) ((fs)->ssize) /* Variable sector size */
#endif
/* Timestamp */
#if _FS_NORTC == 1
#if _NORTC_YEAR < 1980 || _NORTC_YEAR > 2107 || _NORTC_MON < 1 || _NORTC_MON > 12 || _NORTC_MDAY < 1 || _NORTC_MDAY > 31
#error Invalid _FS_NORTC settings
#endif
#define GET_FATTIME() ((DWORD)(_NORTC_YEAR - 1980) << 25 | (DWORD)_NORTC_MON << 21 | (DWORD)_NORTC_MDAY << 16)
#else
#define GET_FATTIME() get_fattime()
#endif
/* File lock controls */
#if _FS_LOCK != 0
#if _FS_READONLY
#error _FS_LOCK must be 0 at read-only configuration
#endif
typedef struct {
FATFS *fs; /* Object ID 1, volume (NULL:blank entry) */
DWORD clu; /* Object ID 2, containing directory (0:root) */
DWORD ofs; /* Object ID 3, offset in the directory */
WORD ctr; /* Object open counter, 0:none, 0x01..0xFF:read mode open count, 0x100:write mode */
} FILESEM;
#endif
/*--------------------------------------------------------------------------
Module Private Work Area
---------------------------------------------------------------------------*/
/* Remark: Variables defined here without initial value shall be guaranteed
/ zero/null at start-up. If not, the linker option or start-up routine is
/ not compliance with C standard. */
#if _VOLUMES < 1 || _VOLUMES > 10
#error Wrong _VOLUMES setting
#endif
static FATFS *FatFs[_VOLUMES]; /* Pointer to the file system objects (logical drives) */
static WORD Fsid; /* File system mount ID */
#if _FS_RPATH != 0 && _VOLUMES >= 2
static BYTE CurrVol; /* Current drive */
#endif
#if _FS_LOCK != 0
static FILESEM Files[_FS_LOCK]; /* Open object lock semaphores */
#endif
#if _USE_LFN == 0 /* Non-LFN configuration */
#define DEF_NAMBUF
#define INIT_NAMBUF(fs)
#define FREE_NAMBUF()
#else /* LFN configuration */
#if _MAX_LFN < 12 || _MAX_LFN > 255
#error Wrong _MAX_LFN value
#endif
#define MAXDIRB(nc) ((nc + 44U) / 15 * SZDIRE)
#if _USE_LFN == 1 /* LFN enabled with static working buffer */
#if _FS_EXFAT
static BYTE DirBuf[MAXDIRB(_MAX_LFN)]; /* Directory entry block scratchpad buffer */
#endif
static WCHAR LfnBuf[_MAX_LFN + 1]; /* LFN enabled with static working buffer */
#define DEF_NAMBUF
#define INIT_NAMBUF(fs)
#define FREE_NAMBUF()
#elif _USE_LFN == 2 /* LFN enabled with dynamic working buffer on the stack */
#if _FS_EXFAT
#define DEF_NAMBUF WCHAR lbuf[_MAX_LFN+1]; BYTE dbuf[MAXDIRB(_MAX_LFN)];
#define INIT_NAMBUF(fs) { (fs)->lfnbuf = lbuf; (fs)->dirbuf = dbuf; }
#define FREE_NAMBUF()
#else
#define DEF_NAMBUF WCHAR lbuf[_MAX_LFN+1];
#define INIT_NAMBUF(fs) { (fs)->lfnbuf = lbuf; }
#define FREE_NAMBUF()
#endif
#elif _USE_LFN == 3 /* LFN enabled with dynamic working buffer on the heap */
#if _FS_EXFAT
#define DEF_NAMBUF WCHAR *lfn;
#define INIT_NAMBUF(fs) { lfn = ff_memalloc((_MAX_LFN+1)*2 + MAXDIRB(_MAX_LFN)); if (!lfn) LEAVE_FF(fs, FR_NOT_ENOUGH_CORE); (fs)->lfnbuf = lfn; (fs)->dirbuf = (BYTE*)(lfn+_MAX_LFN+1); }
#define FREE_NAMBUF() ff_memfree(lfn)
#else
#define DEF_NAMBUF WCHAR *lfn;
#define INIT_NAMBUF(fs) { lfn = ff_memalloc((_MAX_LFN+1)*2); if (!lfn) LEAVE_FF(fs, FR_NOT_ENOUGH_CORE); (fs)->lfnbuf = lfn; }
#define FREE_NAMBUF() ff_memfree(lfn)
#endif
#else
#error Wrong _USE_LFN setting
#endif
#endif /* else _USE_LFN == 0 */
#ifdef _EXCVT
static const BYTE ExCvt[] = _EXCVT; /* Upper conversion table for SBCS extended characters */
#endif
/*--------------------------------------------------------------------------
Module Private Functions
---------------------------------------------------------------------------*/
/*-----------------------------------------------------------------------*/
/* Load/Store multi-byte word in the FAT structure */
/*-----------------------------------------------------------------------*/
#define ld_word(ptr) (*(ptr) | *(ptr+1) << 8)
static
DWORD ld_dword (const BYTE* ptr) /* Load a 4-byte little-endian word */
{
DWORD rv;
rv = ptr[3];
rv = rv << 8 | ptr[2];
rv = rv << 8 | ptr[1];
rv = rv << 8 | ptr[0];
return rv;
}
#if _FS_EXFAT
static
QWORD ld_qword (const BYTE* ptr) /* Load an 8-byte little-endian word */
{
QWORD rv;
rv = ptr[7];
rv = rv << 8 | ptr[6];
rv = rv << 8 | ptr[5];
rv = rv << 8 | ptr[4];
rv = rv << 8 | ptr[3];
rv = rv << 8 | ptr[2];
rv = rv << 8 | ptr[1];
rv = rv << 8 | ptr[0];
return rv;
}
#endif
#if !_FS_READONLY
static
void st_word (BYTE* ptr, WORD val) /* Store a 2-byte word in little-endian */
{
*ptr++ = (BYTE)val; val >>= 8;
*ptr++ = (BYTE)val;
}
static
void st_dword (BYTE* ptr, DWORD val) /* Store a 4-byte word in little-endian */
{
*ptr++ = (BYTE)val; val >>= 8;
*ptr++ = (BYTE)val; val >>= 8;
*ptr++ = (BYTE)val; val >>= 8;
*ptr++ = (BYTE)val;
}
#if _FS_EXFAT
static
void st_qword (BYTE* ptr, QWORD val) /* Store an 8-byte word in little-endian */
{
*ptr++ = (BYTE)val; val >>= 8;
*ptr++ = (BYTE)val; val >>= 8;
*ptr++ = (BYTE)val; val >>= 8;
*ptr++ = (BYTE)val; val >>= 8;
*ptr++ = (BYTE)val; val >>= 8;
*ptr++ = (BYTE)val; val >>= 8;
*ptr++ = (BYTE)val; val >>= 8;
*ptr++ = (BYTE)val;
}
#endif
#endif /* !_FS_READONLY */
/*-----------------------------------------------------------------------*/
/* String functions */
/*-----------------------------------------------------------------------*/
/* Copy memory to memory */
static
void mem_cpy (void* dst, const void* src, UINT cnt) {
BYTE *d = (BYTE*)dst;
const BYTE *s = (const BYTE*)src;
if (cnt) {
do {
*d++ = *s++;
} while (--cnt);
}
}
/* Fill memory block */
static
void mem_set (void* dst, int val, UINT cnt) {
BYTE *d = (BYTE*)dst;
do {
*d++ = (BYTE)val;
} while (--cnt);
}
/* Compare memory block */
static
int mem_cmp (const void* dst, const void* src, UINT cnt) { /* ZR:same, NZ:different */
const BYTE *d = (const BYTE *)dst, *s = (const BYTE *)src;
int r = 0;
do {
r = *d++ - *s++;
} while (--cnt && r == 0);
return r;
}
/* Check if chr is contained in the string */
static
int chk_chr (const char* str, int chr) { /* NZ:contained, ZR:not contained */
while (*str && *str != chr) str++;
return *str;
}
#if _FS_REENTRANT
/*-----------------------------------------------------------------------*/
/* Request/Release grant to access the volume */
/*-----------------------------------------------------------------------*/
static
int lock_fs (
FATFS* fs /* File system object */
)
{
return (fs && ff_req_grant(fs->sobj)) ? 1 : 0;
}
static
void unlock_fs (
FATFS* fs, /* File system object */
FRESULT res /* Result code to be returned */
)
{
if (fs && res != FR_NOT_ENABLED && res != FR_INVALID_DRIVE && res != FR_TIMEOUT) {
ff_rel_grant(fs->sobj);
}
}
#endif
#if _FS_LOCK != 0
/*-----------------------------------------------------------------------*/
/* File lock control functions */
/*-----------------------------------------------------------------------*/
static
FRESULT chk_lock ( /* Check if the file can be accessed */
DIR* dp, /* Directory object pointing the file to be checked */
int acc /* Desired access type (0:Read, 1:Write, 2:Delete/Rename) */
)
{
UINT i, be;
/* Search file semaphore table */
for (i = be = 0; i < _FS_LOCK; i++) {
if (Files[i].fs) { /* Existing entry */
if (Files[i].fs == dp->obj.fs && /* Check if the object matched with an open object */
Files[i].clu == dp->obj.sclust &&
Files[i].ofs == dp->dptr) break;
} else { /* Blank entry */
be = 1;
}
}
if (i == _FS_LOCK) { /* The object is not opened */
return (be || acc == 2) ? FR_OK : FR_TOO_MANY_OPEN_FILES; /* Is there a blank entry for new object? */
}
/* The object has been opened. Reject any open against writing file and all write mode open */
return (acc || Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK;
}
static
int enq_lock (void) /* Check if an entry is available for a new object */
{
UINT i;
for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
return (i == _FS_LOCK) ? 0 : 1;
}
static
UINT inc_lock ( /* Increment object open counter and returns its index (0:Internal error) */
DIR* dp, /* Directory object pointing the file to register or increment */
int acc /* Desired access (0:Read, 1:Write, 2:Delete/Rename) */
)
{
UINT i;
for (i = 0; i < _FS_LOCK; i++) { /* Find the object */
if (Files[i].fs == dp->obj.fs &&
Files[i].clu == dp->obj.sclust &&
Files[i].ofs == dp->dptr) break;
}
if (i == _FS_LOCK) { /* Not opened. Register it as new. */
for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
if (i == _FS_LOCK) return 0; /* No free entry to register (int err) */
Files[i].fs = dp->obj.fs;
Files[i].clu = dp->obj.sclust;
Files[i].ofs = dp->dptr;
Files[i].ctr = 0;
}
if (acc && Files[i].ctr) return 0; /* Access violation (int err) */
Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1; /* Set semaphore value */
return i + 1;
}
static
FRESULT dec_lock ( /* Decrement object open counter */
UINT i /* Semaphore index (1..) */
)
{
WORD n;
FRESULT res;
if (--i < _FS_LOCK) { /* Shift index number origin from 0 */
n = Files[i].ctr;
if (n == 0x100) n = 0; /* If write mode open, delete the entry */
if (n > 0) n--; /* Decrement read mode open count */
Files[i].ctr = n;
if (n == 0) Files[i].fs = 0; /* Delete the entry if open count gets zero */
res = FR_OK;
} else {
res = FR_INT_ERR; /* Invalid index nunber */
}
return res;
}
static
void clear_lock ( /* Clear lock entries of the volume */
FATFS *fs
)
{
UINT i;
for (i = 0; i < _FS_LOCK; i++) {
if (Files[i].fs == fs) Files[i].fs = 0;
}
}
#endif /* _FS_LOCK != 0 */
/*-----------------------------------------------------------------------*/
/* Move/Flush disk access window in the file system object */
/*-----------------------------------------------------------------------*/
#if !_FS_READONLY
static
FRESULT sync_window ( /* Returns FR_OK or FR_DISK_ERROR */
FATFS* fs /* File system object */
)
{
DWORD wsect;
UINT nf;
FRESULT res = FR_OK;
if (fs->wflag) { /* Write back the sector if it is dirty */
wsect = fs->winsect; /* Current sector number */
if (disk_write(fs->drv, fs->win, wsect, 1) != RES_OK) {
res = FR_DISK_ERR;
} else {
fs->wflag = 0;
if (wsect - fs->fatbase < fs->fsize) { /* Is it in the FAT area? */
for (nf = fs->n_fats; nf >= 2; nf--) { /* Reflect the change to all FAT copies */
wsect += fs->fsize;
disk_write(fs->drv, fs->win, wsect, 1);
}
}
}
}
return res;
}
#endif
static
FRESULT move_window ( /* Returns FR_OK or FR_DISK_ERROR */
FATFS* fs, /* File system object */
DWORD sector /* Sector number to make appearance in the fs->win[] */
)
{
FRESULT res = FR_OK;
if (sector != fs->winsect) { /* Window offset changed? */
#if !_FS_READONLY
res = sync_window(fs); /* Write-back changes */
#endif
if (res == FR_OK) { /* Fill sector window with new data */
if (disk_read(fs->drv, fs->win, sector, 1) != RES_OK) {
sector = 0xFFFFFFFF; /* Invalidate window if data is not reliable */
res = FR_DISK_ERR;
}
fs->winsect = sector;
}
}
return res;
}
#if !_FS_READONLY
/*-----------------------------------------------------------------------*/
/* Synchronize file system and strage device */
/*-----------------------------------------------------------------------*/
static
FRESULT sync_fs ( /* FR_OK:succeeded, !=0:error */
FATFS* fs /* File system object */
)
{
FRESULT res;
res = sync_window(fs);
if (res == FR_OK) {
/* Update FSInfo sector if needed */
if (fs->fs_type == FS_FAT32 && fs->fsi_flag == 1) {
/* Create FSInfo structure */
mem_set(fs->win, 0, SS(fs));
st_word(fs->win + BS_55AA, 0xAA55);
st_dword(fs->win + FSI_LeadSig, 0x41615252);
st_dword(fs->win + FSI_StrucSig, 0x61417272);
st_dword(fs->win + FSI_Free_Count, fs->free_clst);
st_dword(fs->win + FSI_Nxt_Free, fs->last_clst);
/* Write it into the FSInfo sector */
fs->winsect = fs->volbase + 1;
disk_write(fs->drv, fs->win, fs->winsect, 1);
fs->fsi_flag = 0;
}
/* Make sure that no pending write process in the physical drive */
if (disk_ioctl(fs->drv, CTRL_SYNC, 0) != RES_OK) res = FR_DISK_ERR;
}
return res;
}
#endif
/*-----------------------------------------------------------------------*/
/* Get sector# from cluster# */
/*-----------------------------------------------------------------------*/
static
DWORD clust2sect ( /* !=0:Sector number, 0:Failed (invalid cluster#) */
FATFS* fs, /* File system object */
DWORD clst /* Cluster# to be converted */
)
{
clst -= 2;
if (clst >= fs->n_fatent - 2) return 0; /* Invalid cluster# */
return clst * fs->csize + fs->database;
}
/*-----------------------------------------------------------------------*/
/* FAT access - Read value of a FAT entry */
/*-----------------------------------------------------------------------*/
static
DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, 2..0x7FFFFFFF:Cluster status */
_FDID* obj, /* Corresponding object */
DWORD clst /* Cluster number to get the value */
)
{
UINT wc, bc;
DWORD val;
FATFS *fs = obj->fs;
if (clst < 2 || clst >= fs->n_fatent) { /* Check if in valid range */
val = 1; /* Internal error */
} else {
val = 0xFFFFFFFF; /* Default value falls on disk error */
switch (fs->fs_type) {
case FS_FAT12 :
bc = (UINT)clst; bc += bc / 2;
if (move_window(fs, fs->fatbase + (bc / SS(fs))) != FR_OK) break;
wc = fs->win[bc++ % SS(fs)];
if (move_window(fs, fs->fatbase + (bc / SS(fs))) != FR_OK) break;
wc |= fs->win[bc % SS(fs)] << 8;
val = (clst & 1) ? (wc >> 4) : (wc & 0xFFF);
break;
case FS_FAT16 :
if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2))) != FR_OK) break;
val = ld_word(fs->win + clst * 2 % SS(fs));
break;
case FS_FAT32 :
if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4))) != FR_OK) break;
val = ld_dword(fs->win + clst * 4 % SS(fs)) & 0x0FFFFFFF;
break;
#if _FS_EXFAT
case FS_EXFAT :
if (obj->objsize) {
DWORD cofs = clst - obj->sclust; /* Offset from start cluster */
DWORD clen = (DWORD)((obj->objsize - 1) / SS(fs)) / fs->csize; /* Number of clusters - 1 */
if (obj->stat == 2) { /* Is there no valid chain on the FAT? */
if (cofs <= clen) {
val = (cofs == clen) ? 0x7FFFFFFF : clst + 1; /* Generate the value */
break;
}
}
if (obj->stat == 3 && cofs < obj->n_cont) { /* Is it in the 1st fragment? */
val = clst + 1; /* Generate the value */
break;
}
if (obj->stat != 2) { /* Get value from FAT if FAT chain is valid */
if (obj->n_frag != 0) { /* Is it on the growing edge? */
val = 0x7FFFFFFF; /* Generate EOC */
} else {
if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4))) != FR_OK) break;
val = ld_dword(fs->win + clst * 4 % SS(fs)) & 0x7FFFFFFF;
}
break;
}
}
/* go to default */
#endif
default:
val = 1; /* Internal error */
}
}
return val;
}
#if !_FS_READONLY
/*-----------------------------------------------------------------------*/
/* FAT access - Change value of a FAT entry */
/*-----------------------------------------------------------------------*/
static
FRESULT put_fat ( /* FR_OK(0):succeeded, !=0:error */
FATFS* fs, /* Corresponding file system object */
DWORD clst, /* FAT index number (cluster number) to be changed */
DWORD val /* New value to be set to the entry */
)
{
UINT bc;
BYTE *p;
FRESULT res = FR_INT_ERR;
if (clst >= 2 && clst < fs->n_fatent) { /* Check if in valid range */
switch (fs->fs_type) {
case FS_FAT12 : /* Bitfield items */
bc = (UINT)clst; bc += bc / 2;
res = move_window(fs, fs->fatbase + (bc / SS(fs)));
if (res != FR_OK) break;
p = fs->win + bc++ % SS(fs);
*p = (clst & 1) ? ((*p & 0x0F) | ((BYTE)val << 4)) : (BYTE)val;
fs->wflag = 1;
res = move_window(fs, fs->fatbase + (bc / SS(fs)));
if (res != FR_OK) break;
p = fs->win + bc % SS(fs);
*p = (clst & 1) ? (BYTE)(val >> 4) : ((*p & 0xF0) | ((BYTE)(val >> 8) & 0x0F));
fs->wflag = 1;
break;
case FS_FAT16 : /* WORD aligned items */
res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)));
if (res != FR_OK) break;
st_word(fs->win + clst * 2 % SS(fs), (WORD)val);
fs->wflag = 1;
break;
case FS_FAT32 : /* DWORD aligned items */
#if _FS_EXFAT
case FS_EXFAT :
#endif
res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)));
if (res != FR_OK) break;
if (!_FS_EXFAT || fs->fs_type != FS_EXFAT) {
val = (val & 0x0FFFFFFF) | (ld_dword(fs->win + clst * 4 % SS(fs)) & 0xF0000000);
}
st_dword(fs->win + clst * 4 % SS(fs), val);
fs->wflag = 1;
break;
}
}
return res;
}
#endif /* !_FS_READONLY */
#if _FS_EXFAT && !_FS_READONLY
/*-----------------------------------------------------------------------*/
/* exFAT: Accessing FAT and Allocation Bitmap */
/*-----------------------------------------------------------------------*/
/*--------------------------------------*/
/* Find a contiguous free cluster block */
/*--------------------------------------*/
static
DWORD find_bitmap ( /* 0:Not found, 2..:Cluster block found, 0xFFFFFFFF:Disk error */
FATFS* fs, /* File system object */
DWORD clst, /* Cluster number to scan from */
DWORD ncl /* Number of contiguous clusters to find (1..) */
)
{
BYTE bm, bv;
UINT i;
DWORD val, scl, ctr;
clst -= 2; /* The first bit in the bitmap corresponds to cluster #2 */
if (clst >= fs->n_fatent - 2) clst = 0;
scl = val = clst; ctr = 0;
for (;;) {
if (move_window(fs, fs->database + val / 8 / SS(fs)) != FR_OK) return 0xFFFFFFFF; /* (assuming bitmap is located top of the cluster heap) */
i = val / 8 % SS(fs); bm = 1 << (val % 8);
do {
do {
bv = fs->win[i] & bm; bm <<= 1; /* Get bit value */
if (++val >= fs->n_fatent - 2) { /* Next cluster (with wrap-around) */
val = 0; bm = 0; i = SS(fs);
}
if (!bv) { /* Is it a free cluster? */
if (++ctr == ncl) return scl + 2; /* Check if run length is sufficient for required */
} else {
scl = val; ctr = 0; /* Encountered a cluster in-use, restart to scan */
}
if (val == clst) return 0; /* All cluster scanned? */
} while (bm);
bm = 1;
} while (++i < SS(fs));
}
}
/*----------------------------------------*/
/* Set/Clear a block of allocation bitmap */
/*----------------------------------------*/
static
FRESULT change_bitmap (
FATFS* fs, /* File system object */
DWORD clst, /* Cluster number to change from */
DWORD ncl, /* Number of clusters to be changed */
int bv /* bit value to be set (0 or 1) */
)
{
BYTE bm;
UINT i;
DWORD sect;
clst -= 2; /* The first bit corresponds to cluster #2 */
sect = fs->database + clst / 8 / SS(fs); /* Sector address (assuming bitmap is located top of the cluster heap) */
i = clst / 8 % SS(fs); /* Byte offset in the sector */
bm = 1 << (clst % 8); /* Bit mask in the byte */
for (;;) {
if (move_window(fs, sect++) != FR_OK) return FR_DISK_ERR;
do {
do {
if (bv == (int)((fs->win[i] & bm) != 0)) return FR_INT_ERR; /* Is the bit expected value? */
fs->win[i] ^= bm; /* Flip the bit */
fs->wflag = 1;
if (--ncl == 0) return FR_OK; /* All bits processed? */
} while (bm <<= 1); /* Next bit */
bm = 1;
} while (++i < SS(fs)); /* Next byte */
i = 0;
}
}
/*---------------------------------------------*/
/* Fill the first fragment of the FAT chain */
/*---------------------------------------------*/
static
FRESULT fill_first_frag (
_FDID* obj /* Pointer to the corresponding object */
)
{
FRESULT res;
DWORD cl, n;
if (obj->stat == 3) { /* Has the object been changed 'fragmented'? */
for (cl = obj->sclust, n = obj->n_cont; n; cl++, n--) { /* Create cluster chain on the FAT */
res = put_fat(obj->fs, cl, cl + 1);
if (res != FR_OK) return res;
}
obj->stat = 0; /* Change status 'FAT chain is valid' */
}
return FR_OK;
}
/*---------------------------------------------*/
/* Fill the last fragment of the FAT chain */
/*---------------------------------------------*/
static
FRESULT fill_last_frag (
_FDID* obj, /* Pointer to the corresponding object */
DWORD lcl, /* Last cluster of the fragment */
DWORD term /* Value to set the last FAT entry */
)
{
FRESULT res;
while (obj->n_frag > 0) { /* Create the last chain on the FAT */
res = put_fat(obj->fs, lcl - obj->n_frag + 1, (obj->n_frag > 1) ? lcl - obj->n_frag + 2 : term);
if (res != FR_OK) return res;
obj->n_frag--;
}
return FR_OK;
}
#endif /* _FS_EXFAT && !_FS_READONLY */
#if !_FS_READONLY
/*-----------------------------------------------------------------------*/
/* FAT handling - Remove a cluster chain */
/*-----------------------------------------------------------------------*/
static
FRESULT remove_chain ( /* FR_OK(0):succeeded, !=0:error */
_FDID* obj, /* Corresponding object */
DWORD clst, /* Cluster to remove a chain from */
DWORD pclst /* Previous cluster of clst (0:an entire chain) */
)
{
FRESULT res = FR_OK;
DWORD nxt;
FATFS *fs = obj->fs;
#if _FS_EXFAT || _USE_TRIM
DWORD scl = clst, ecl = clst;
#endif
#if _USE_TRIM
DWORD rt[2];
#endif
if (clst < 2 || clst >= fs->n_fatent) return FR_INT_ERR; /* Check if in valid range */
/* Mark the previous cluster 'EOC' on the FAT if it exists */
if (pclst && (!_FS_EXFAT || fs->fs_type != FS_EXFAT || obj->stat != 2)) {
res = put_fat(fs, pclst, 0xFFFFFFFF);
if (res != FR_OK) return res;
}
/* Remove the chain */
do {
nxt = get_fat(obj, clst); /* Get cluster status */
if (nxt == 0) break; /* Empty cluster? */
if (nxt == 1) return FR_INT_ERR; /* Internal error? */
if (nxt == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error? */
if (!_FS_EXFAT || fs->fs_type != FS_EXFAT) {
res = put_fat(fs, clst, 0); /* Mark the cluster 'free' on the FAT */
if (res != FR_OK) return res;
}
if (fs->free_clst < fs->n_fatent - 2) { /* Update FSINFO */
fs->free_clst++;
fs->fsi_flag |= 1;
}
#if _FS_EXFAT || _USE_TRIM
if (ecl + 1 == nxt) { /* Is next cluster contiguous? */
ecl = nxt;
} else { /* End of contiguous cluster block */
#if _FS_EXFAT
if (fs->fs_type == FS_EXFAT) {
res = change_bitmap(fs, scl, ecl - scl + 1, 0); /* Mark the cluster block 'free' on the bitmap */
if (res != FR_OK) return res;
}
#endif
#if _USE_TRIM
rt[0] = clust2sect(fs, scl); /* Start sector */
rt[1] = clust2sect(fs, ecl) + fs->csize - 1; /* End sector */
disk_ioctl(fs->drv, CTRL_TRIM, rt); /* Inform device the block can be erased */
#endif
scl = ecl = nxt;
}
#endif
clst = nxt; /* Next cluster */
} while (clst < fs->n_fatent); /* Repeat while not the last link */
#if _FS_EXFAT
if (fs->fs_type == FS_EXFAT) {
if (pclst == 0) { /* Does the object have no chain? */
obj->stat = 0; /* Change the object status 'initial' */
} else {
if (obj->stat == 3 && pclst >= obj->sclust && pclst <= obj->sclust + obj->n_cont) { /* Did the chain get contiguous? */
obj->stat = 2; /* Change the object status 'contiguous' */
}
}
}
#endif
return FR_OK;
}
/*-----------------------------------------------------------------------*/
/* FAT handling - Stretch a chain or Create a new chain */
/*-----------------------------------------------------------------------*/
static
DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */
_FDID* obj, /* Corresponding object */
DWORD clst /* Cluster# to stretch, 0:Create a new chain */
)
{
DWORD cs, ncl, scl;
FRESULT res;
FATFS *fs = obj->fs;
if (clst == 0) { /* Create a new chain */
scl = fs->last_clst; /* Get suggested cluster to start from */
if (scl == 0 || scl >= fs->n_fatent) scl = 1;
}
else { /* Stretch current chain */
cs = get_fat(obj, clst); /* Check the cluster status */
if (cs < 2) return 1; /* Invalid FAT value */
if (cs == 0xFFFFFFFF) return cs; /* A disk error occurred */
if (cs < fs->n_fatent) return cs; /* It is already followed by next cluster */
scl = clst;
}
#if _FS_EXFAT
if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */
ncl = find_bitmap(fs, scl, 1); /* Find a free cluster */
if (ncl == 0 || ncl == 0xFFFFFFFF) return ncl; /* No free cluster or hard error? */
res = change_bitmap(fs, ncl, 1, 1); /* Mark the cluster 'in use' */
if (res == FR_INT_ERR) return 1;
if (res == FR_DISK_ERR) return 0xFFFFFFFF;
if (clst == 0) { /* Is it a new chain? */
obj->stat = 2; /* Set status 'contiguous' */
} else { /* It is a stretched chain */
if (obj->stat == 2 && ncl != scl + 1) { /* Is the chain got fragmented? */
obj->n_cont = scl - obj->sclust; /* Set size of the contiguous part */
obj->stat = 3; /* Change status 'just fragmented' */
}
}
if (obj->stat != 2) { /* Is the file non-contiguous? */
if (ncl == clst + 1) { /* Is the cluster next to previous one? */
obj->n_frag = obj->n_frag ? obj->n_frag + 1 : 2; /* Increment size of last framgent */
} else { /* New fragment */
if (obj->n_frag == 0) obj->n_frag = 1;
res = fill_last_frag(obj, clst, ncl); /* Fill last fragment on the FAT and link it to new one */
if (res == FR_OK) obj->n_frag = 1;
}
}
} else
#endif
{ /* On the FAT12/16/32 volume */
ncl = scl; /* Start cluster */
for (;;) {
ncl++; /* Next cluster */
if (ncl >= fs->n_fatent) { /* Check wrap-around */
ncl = 2;
if (ncl > scl) return 0; /* No free cluster */
}
cs = get_fat(obj, ncl); /* Get the cluster status */
if (cs == 0) break; /* Found a free cluster */
if (cs == 1 || cs == 0xFFFFFFFF) return cs; /* An error occurred */
if (ncl == scl) return 0; /* No free cluster */
}
res = put_fat(fs, ncl, 0xFFFFFFFF); /* Mark the new cluster 'EOC' */
if (res == FR_OK && clst != 0) {
res = put_fat(fs, clst, ncl); /* Link it from the previous one if needed */
}
}
if (res == FR_OK) { /* Update FSINFO if function succeeded. */
fs->last_clst = ncl;
if (fs->free_clst <= fs->n_fatent - 2) fs->free_clst--;
fs->fsi_flag |= 1;
} else {
ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1; /* Failed. Generate error status */
}
return ncl; /* Return new cluster number or error status */
}
#endif /* !_FS_READONLY */
#if _USE_FASTSEEK
/*-----------------------------------------------------------------------*/
/* FAT handling - Convert offset into cluster with link map table */
/*-----------------------------------------------------------------------*/
static
DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */
FIL* fp, /* Pointer to the file object */
FSIZE_t ofs /* File offset to be converted to cluster# */
)
{
DWORD cl, ncl, *tbl;
FATFS *fs = fp->obj.fs;
tbl = fp->cltbl + 1; /* Top of CLMT */
cl = (DWORD)(ofs / SS(fs) / fs->csize); /* Cluster order from top of the file */
for (;;) {
ncl = *tbl++; /* Number of cluters in the fragment */
if (ncl == 0) return 0; /* End of table? (error) */
if (cl < ncl) break; /* In this fragment? */
cl -= ncl; tbl++; /* Next fragment */
}
return cl + *tbl; /* Return the cluster number */
}
#endif /* _USE_FASTSEEK */
/*-----------------------------------------------------------------------*/
/* Directory handling - Set directory index */
/*-----------------------------------------------------------------------*/
static
FRESULT dir_sdi ( /* FR_OK(0):succeeded, !=0:error */
DIR* dp, /* Pointer to directory object */
DWORD ofs /* Offset of directory table */
)
{
DWORD csz, clst;
FATFS *fs = dp->obj.fs;
if (ofs >= (DWORD)((_FS_EXFAT && fs->fs_type == FS_EXFAT) ? MAX_DIR_EX : MAX_DIR) || ofs % SZDIRE) { /* Check range of offset and alignment */
return FR_INT_ERR;
}
dp->dptr = ofs; /* Set current offset */
clst = dp->obj.sclust; /* Table start cluster (0:root) */
if (clst == 0 && fs->fs_type >= FS_FAT32) { /* Replace cluster# 0 with root cluster# */
clst = fs->dirbase;
if (_FS_EXFAT) dp->obj.stat = 0; /* exFAT: Root dir has an FAT chain */
}
if (clst == 0) { /* Static table (root-directory in FAT12/16) */
if (ofs / SZDIRE >= fs->n_rootdir) return FR_INT_ERR; /* Is index out of range? */
dp->sect = fs->dirbase;
} else { /* Dynamic table (sub-directory or root-directory in FAT32+) */
csz = (DWORD)fs->csize * SS(fs); /* Bytes per cluster */
while (ofs >= csz) { /* Follow cluster chain */
clst = get_fat(&dp->obj, clst); /* Get next cluster */
if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */
if (clst < 2 || clst >= fs->n_fatent) return FR_INT_ERR; /* Reached to end of table or internal error */
ofs -= csz;
}
dp->sect = clust2sect(fs, clst);
}
dp->clust = clst; /* Current cluster# */
if (!dp->sect) return FR_INT_ERR;
dp->sect += ofs / SS(fs); /* Sector# of the directory entry */
dp->dir = fs->win + (ofs % SS(fs)); /* Pointer to the entry in the win[] */
return FR_OK;
}
/*-----------------------------------------------------------------------*/
/* Directory handling - Move directory table index next */
/*-----------------------------------------------------------------------*/
static
FRESULT dir_next ( /* FR_OK(0):succeeded, FR_NO_FILE:End of table, FR_DENIED:Could not stretch */
DIR* dp, /* Pointer to the directory object */
int stretch /* 0: Do not stretch table, 1: Stretch table if needed */
)
{
DWORD ofs, clst;
FATFS *fs = dp->obj.fs;
#if !_FS_READONLY
UINT n;
#endif
ofs = dp->dptr + SZDIRE; /* Next entry */
if (!dp->sect || ofs >= (DWORD)((_FS_EXFAT && fs->fs_type == FS_EXFAT) ? MAX_DIR_EX : MAX_DIR)) return FR_NO_FILE; /* Report EOT when offset has reached max value */
if (ofs % SS(fs) == 0) { /* Sector changed? */
dp->sect++; /* Next sector */
if (!dp->clust) { /* Static table */
if (ofs / SZDIRE >= fs->n_rootdir) { /* Report EOT if it reached end of static table */
dp->sect = 0; return FR_NO_FILE;
}
}
else { /* Dynamic table */
if ((ofs / SS(fs) & (fs->csize - 1)) == 0) { /* Cluster changed? */
clst = get_fat(&dp->obj, dp->clust); /* Get next cluster */
if (clst <= 1) return FR_INT_ERR; /* Internal error */
if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */
if (clst >= fs->n_fatent) { /* Reached end of dynamic table */
#if !_FS_READONLY
if (!stretch) { /* If no stretch, report EOT */
dp->sect = 0; return FR_NO_FILE;
}
clst = create_chain(&dp->obj, dp->clust); /* Allocate a cluster */
if (clst == 0) return FR_DENIED; /* No free cluster */
if (clst == 1) return FR_INT_ERR; /* Internal error */
if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */
/* Clean-up the stretched table */
if (_FS_EXFAT) dp->obj.stat |= 4; /* The directory needs to be updated */
if (sync_window(fs) != FR_OK) return FR_DISK_ERR; /* Flush disk access window */
mem_set(fs->win, 0, SS(fs)); /* Clear window buffer */
for (n = 0, fs->winsect = clust2sect(fs, clst); n < fs->csize; n++, fs->winsect++) { /* Fill the new cluster with 0 */
fs->wflag = 1;
if (sync_window(fs) != FR_OK) return FR_DISK_ERR;
}
fs->winsect -= n; /* Restore window offset */
#else
if (!stretch) dp->sect = 0; /* (this line is to suppress compiler warning) */
dp->sect = 0; return FR_NO_FILE; /* Report EOT */
#endif
}
dp->clust = clst; /* Initialize data for new cluster */
dp->sect = clust2sect(fs, clst);
}
}
}
dp->dptr = ofs; /* Current entry */
dp->dir = fs->win + ofs % SS(fs); /* Pointer to the entry in the win[] */
return FR_OK;
}
#if !_FS_READONLY
/*-----------------------------------------------------------------------*/
/* Directory handling - Reserve a block of directory entries */
/*-----------------------------------------------------------------------*/
static
FRESULT dir_alloc ( /* FR_OK(0):succeeded, !=0:error */
DIR* dp, /* Pointer to the directory object */
UINT nent /* Number of contiguous entries to allocate */
)
{
FRESULT res;
UINT n;
FATFS *fs = dp->obj.fs;
res = dir_sdi(dp, 0);
if (res == FR_OK) {
n = 0;
do {
res = move_window(fs, dp->sect);
if (res != FR_OK) break;
#if _FS_EXFAT
if ((fs->fs_type == FS_EXFAT) ? (int)((dp->dir[XDIR_Type] & 0x80) == 0) : (int)(dp->dir[DIR_Name] == DDEM || dp->dir[DIR_Name] == 0)) {
#else
if (dp->dir[DIR_Name] == DDEM || dp->dir[DIR_Name] == 0) {
#endif
if (++n == nent) break; /* A block of contiguous free entries is found */
} else {
n = 0; /* Not a blank entry. Restart to search */
}
res = dir_next(dp, 1);
} while (res == FR_OK); /* Next entry with table stretch enabled */
}
if (res == FR_NO_FILE) res = FR_DENIED; /* No directory entry to allocate */
return res;
}
#endif /* !_FS_READONLY */
/*-----------------------------------------------------------------------*/
/* FAT: Directory handling - Load/Store start cluster number */
/*-----------------------------------------------------------------------*/
static
DWORD ld_clust ( /* Returns the top cluster value of the SFN entry */
FATFS* fs, /* Pointer to the fs object */
const BYTE* dir /* Pointer to the key entry */
)
{
DWORD cl;
cl = ld_word(dir + DIR_FstClusLO);
if (fs->fs_type == FS_FAT32) {
cl |= (DWORD)ld_word(dir + DIR_FstClusHI) << 16;
}
return cl;
}
#if !_FS_READONLY
static
void st_clust (
FATFS* fs, /* Pointer to the fs object */
BYTE* dir, /* Pointer to the key entry */
DWORD cl /* Value to be set */
)
{
st_word(dir + DIR_FstClusLO, (WORD)cl);
if (fs->fs_type == FS_FAT32) {
st_word(dir + DIR_FstClusHI, (WORD)(cl >> 16));
}
}
#endif
#if _USE_LFN != 0
/*------------------------------------------------------------------------*/
/* FAT-LFN: LFN handling */
/*------------------------------------------------------------------------*/
static
const BYTE LfnOfs[] = {1,3,5,7,9,14,16,18,20,22,24,28,30}; /* Offset of LFN characters in the directory entry */
/*--------------------------------------------------------*/
/* FAT-LFN: Compare a part of file name with an LFN entry */
/*--------------------------------------------------------*/
static
int cmp_lfn ( /* 1:matched, 0:not matched */
const WCHAR* lfnbuf, /* Pointer to the LFN working buffer to be compared */
BYTE* dir /* Pointer to the directory entry containing the part of LFN */
)
{
UINT i, s;
WCHAR wc, uc;
if (ld_word(dir + LDIR_FstClusLO) != 0) return 0; /* Check LDIR_FstClusLO */
i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
for (wc = 1, s = 0; s < 13; s++) { /* Process all characters in the entry */
uc = ld_word(dir + LfnOfs[s]); /* Pick an LFN character */
if (wc) {
if (i >= _MAX_LFN || ff_wtoupper(uc) != ff_wtoupper(lfnbuf[i++])) { /* Compare it */
return 0; /* Not matched */
}
wc = uc;
} else {
if (uc != 0xFFFF) return 0; /* Check filler */
}
}
if ((dir[LDIR_Ord] & LLEF) && wc && lfnbuf[i]) return 0; /* Last segment matched but different length */
return 1; /* The part of LFN matched */
}
#if _FS_MINIMIZE <= 1 || _FS_RPATH >= 2 || _USE_LABEL || _FS_EXFAT
/*-----------------------------------------------------*/
/* FAT-LFN: Pick a part of file name from an LFN entry */
/*-----------------------------------------------------*/
static
int pick_lfn ( /* 1:succeeded, 0:buffer overflow or invalid LFN entry */
WCHAR* lfnbuf, /* Pointer to the LFN working buffer */
BYTE* dir /* Pointer to the LFN entry */
)
{
UINT i, s;
WCHAR wc, uc;
if (ld_word(dir + LDIR_FstClusLO) != 0) return 0; /* Check LDIR_FstClusLO is 0 */
i = ((dir[LDIR_Ord] & ~LLEF) - 1) * 13; /* Offset in the LFN buffer */
for (wc = 1, s = 0; s < 13; s++) { /* Process all characters in the entry */
uc = ld_word(dir + LfnOfs[s]); /* Pick an LFN character */
if (wc) {
if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
lfnbuf[i++] = wc = uc; /* Store it */
} else {
if (uc != 0xFFFF) return 0; /* Check filler */
}
}
if (dir[LDIR_Ord] & LLEF) { /* Put terminator if it is the last LFN part */
if (i >= _MAX_LFN) return 0; /* Buffer overflow? */
lfnbuf[i] = 0;
}
return 1; /* The part of LFN is valid */
}
#endif
#if !_FS_READONLY
/*-----------------------------------------*/
/* FAT-LFN: Create an entry of LFN entries */
/*-----------------------------------------*/
static
void put_lfn (
const WCHAR* lfn, /* Pointer to the LFN */
BYTE* dir, /* Pointer to the LFN entry to be created */
BYTE ord, /* LFN order (1-20) */
BYTE sum /* Checksum of the corresponding SFN */
)
{
UINT i, s;
WCHAR wc;
dir[LDIR_Chksum] = sum; /* Set checksum */
dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */
dir[LDIR_Type] = 0;
st_word(dir + LDIR_FstClusLO, 0);
i = (ord - 1) * 13; /* Get offset in the LFN working buffer */
s = wc = 0;
do {
if (wc != 0xFFFF) wc = lfn[i++]; /* Get an effective character */
st_word(dir + LfnOfs[s], wc); /* Put it */
if (wc == 0) wc = 0xFFFF; /* Padding characters for left locations */
} while (++s < 13);
if (wc == 0xFFFF || !lfn[i]) ord |= LLEF; /* Last LFN part is the start of LFN sequence */
dir[LDIR_Ord] = ord; /* Set the LFN order */
}
#endif /* !_FS_READONLY */
#endif /* _USE_LFN != 0 */
#if _USE_LFN != 0 && !_FS_READONLY
/*-----------------------------------------------------------------------*/
/* FAT-LFN: Create a Numbered SFN */
/*-----------------------------------------------------------------------*/
static
void gen_numname (
BYTE* dst, /* Pointer to the buffer to store numbered SFN */
const BYTE* src, /* Pointer to SFN */
const WCHAR* lfn, /* Pointer to LFN */
UINT seq /* Sequence number */
)
{
BYTE ns[8], c;
UINT i, j;
WCHAR wc;
DWORD sr;
mem_cpy(dst, src, 11);
if (seq > 5) { /* In case of many collisions, generate a hash number instead of sequential number */
sr = seq;
while (*lfn) { /* Create a CRC */
wc = *lfn++;
for (i = 0; i < 16; i++) {
sr = (sr << 1) + (wc & 1);
wc >>= 1;
if (sr & 0x10000) sr ^= 0x11021;
}
}
seq = (UINT)sr;
}
/* itoa (hexdecimal) */
i = 7;
do {
c = (BYTE)((seq % 16) + '0');
if (c > '9') c += 7;
ns[i--] = c;
seq /= 16;
} while (seq);
ns[i] = '~';
/* Append the number */
for (j = 0; j < i && dst[j] != ' '; j++) {
if (IsDBCS1(dst[j])) {
if (j == i - 1) break;
j++;
}
}
do {
dst[j++] = (i < 8) ? ns[i++] : ' ';
} while (j < 8);
}
#endif /* _USE_LFN != 0 && !_FS_READONLY */
#if _USE_LFN != 0
/*-----------------------------------------------------------------------*/
/* FAT-LFN: Calculate checksum of an SFN entry */
/*-----------------------------------------------------------------------*/
static
BYTE sum_sfn (
const BYTE* dir /* Pointer to the SFN entry */
)
{
BYTE sum = 0;
UINT n = 11;
do {
sum = (sum >> 1) + (sum << 7) + *dir++;
} while (--n);
return sum;
}
#endif /* _USE_LFN != 0 */
#if _FS_EXFAT
/*-----------------------------------------------------------------------*/
/* exFAT: Checksum */
/*-----------------------------------------------------------------------*/
static
WORD xdir_sum ( /* Get checksum of the directoly block */
const BYTE* dir /* Directory entry block to be calculated */
)
{
UINT i, szblk;
WORD sum;
szblk = (dir[XDIR_NumSec] + 1) * SZDIRE;
for (i = sum = 0; i < szblk; i++) {
if (i == XDIR_SetSum) { /* Skip sum field */
i++;
} else {
sum = ((sum & 1) ? 0x8000 : 0) + (sum >> 1) + dir[i];
}
}
return sum;
}
static
WORD xname_sum ( /* Get check sum (to be used as hash) of the name */
const WCHAR* name /* File name to be calculated */
)
{
WCHAR chr;
WORD sum = 0;
while ((chr = *name++) != 0) {
chr = ff_wtoupper(chr); /* File name needs to be ignored case */
sum = ((sum & 1) ? 0x8000 : 0) + (sum >> 1) + (chr & 0xFF);
sum = ((sum & 1) ? 0x8000 : 0) + (sum >> 1) + (chr >> 8);
}
return sum;
}
#if !_FS_READONLY && _USE_MKFS
static
DWORD xsum32 (
BYTE dat, /* Data to be sumed */
DWORD sum /* Previous value */
)
{
sum = ((sum & 1) ? 0x80000000 : 0) + (sum >> 1) + dat;
return sum;
}
#endif
#if _FS_MINIMIZE <= 1 || _FS_RPATH >= 2
/*------------------------------------------------------*/
/* exFAT: Get object information from a directory block */
/*------------------------------------------------------*/
static
void get_xdir_info (
BYTE* dirb, /* Pointer to the direcotry entry block 85+C0+C1s */
FILINFO* fno /* Buffer to store the extracted file information */
)
{
UINT di, si;
WCHAR w;
#if !_LFN_UNICODE
UINT nc;
#endif
/* Get file name */
di = 0;
#if _LFN_UNICODE
for (si = SZDIRE * 2; di < dirb[XDIR_NumName]; si += 2, di++) {
if ((si % SZDIRE) == 0) si += 2; /* Skip entry type field */
w = ld_word(dirb + si); /* Get a character */
if (di >= _MAX_LFN) { di = 0; break; } /* Buffer overflow --> inaccessible object name */
fno->fname[di] = w; /* Store it */
}
#else
for (si = SZDIRE * 2, nc = 0; nc < dirb[XDIR_NumName]; si += 2, nc++) {
if ((si % SZDIRE) == 0) si += 2; /* Skip entry type field */
w = ff_convert(ld_word(dirb + si), 0); /* Get a character and Unicode -> OEM */
if (_DF1S && w >= 0x100) { /* Is it a double byte char? (always false at SBCS cfg) */
fno->fname[di++] = (char)(w >> 8); /* Put 1st byte of the DBC */
}
if (w == 0 || di >= _MAX_LFN) { di = 0; break; } /* Invalid char or buffer overflow --> inaccessible object name */
fno->fname[di++] = (char)w;
}
#endif
if (di == 0) fno->fname[di++] = '?'; /* Inaccessible object name? */
fno->fname[di] = 0; /* Terminate file name */
fno->altname[0] = 0; /* No SFN */
fno->fattrib = dirb[XDIR_Attr]; /* Attribute */
fno->fsize = (fno->fattrib & AM_DIR) ? 0 : ld_qword(dirb + XDIR_FileSize); /* Size */
fno->ftime = ld_word(dirb + XDIR_ModTime + 0); /* Time */
fno->fdate = ld_word(dirb + XDIR_ModTime + 2); /* Date */
}
#endif /* _FS_MINIMIZE <= 1 || _FS_RPATH >= 2 */
/*-----------------------------------*/
/* exFAT: Get a directry entry block */
/*-----------------------------------*/
static
FRESULT load_xdir ( /* FR_INT_ERR: invalid entry block */
DIR* dp /* Pointer to the reading direcotry object pointing the 85 entry */
)
{
FRESULT res;
UINT i, sz_ent;
BYTE* dirb = dp->obj.fs->dirbuf; /* Pointer to the on-memory direcotry entry block 85+C0+C1s */
/* Load 85 entry */
res = move_window(dp->obj.fs, dp->sect);
if (res != FR_OK) return res;
if (dp->dir[XDIR_Type] != 0x85) return FR_INT_ERR;
mem_cpy(dirb + 0, dp->dir, SZDIRE);
sz_ent = (dirb[XDIR_NumSec] + 1) * SZDIRE;
if (sz_ent < 3 * SZDIRE || sz_ent > 19 * SZDIRE) return FR_INT_ERR;
/* Load C0 entry */
res = dir_next(dp, 0);
if (res != FR_OK) return res;
res = move_window(dp->obj.fs, dp->sect);
if (res != FR_OK) return res;
if (dp->dir[XDIR_Type] != 0xC0) return FR_INT_ERR;
mem_cpy(dirb + SZDIRE, dp->dir, SZDIRE);
if (MAXDIRB(dirb[XDIR_NumName]) > sz_ent) return FR_INT_ERR;
/* Load C1 entries */
i = SZDIRE * 2; /* C1 offset */
do {
res = dir_next(dp, 0);
if (res != FR_OK) return res;
res = move_window(dp->obj.fs, dp->sect);
if (res != FR_OK) return res;
if (dp->dir[XDIR_Type] != 0xC1) return FR_INT_ERR;
if (i < MAXDIRB(_MAX_LFN)) mem_cpy(dirb + i, dp->dir, SZDIRE);
} while ((i += SZDIRE) < sz_ent);
/* Sanity check (do it when accessible object name) */
if (i <= MAXDIRB(_MAX_LFN)) {
if (xdir_sum(dirb) != ld_word(dirb + XDIR_SetSum)) return FR_INT_ERR;
}
return FR_OK;
}
#if !_FS_READONLY || _FS_RPATH != 0
/*------------------------------------------------*/
/* exFAT: Load the object's directory entry block */
/*------------------------------------------------*/
static
FRESULT load_obj_dir (
DIR* dp, /* Blank directory object to be used to access containing direcotry */
const _FDID* obj /* Object with its containing directory information */
)
{
FRESULT res;
/* Open object containing directory */
dp->obj.fs = obj->fs;
dp->obj.sclust = obj->c_scl;
dp->obj.stat = (BYTE)obj->c_size;
dp->obj.objsize = obj->c_size & 0xFFFFFF00;
dp->blk_ofs = obj->c_ofs;
res = dir_sdi(dp, dp->blk_ofs); /* Goto object's entry block */
if (res == FR_OK) {
res = load_xdir(dp); /* Load the object's entry block */
}
return res;
}
#endif
#if !_FS_READONLY
/*-----------------------------------------------*/
/* exFAT: Store the directory block to the media */
/*-----------------------------------------------*/
static
FRESULT store_xdir (
DIR* dp /* Pointer to the direcotry object */
)
{
FRESULT res;
UINT nent;
BYTE* dirb = dp->obj.fs->dirbuf; /* Pointer to the direcotry entry block 85+C0+C1s */
/* Create set sum */
st_word(dirb + XDIR_SetSum, xdir_sum(dirb));
nent = dirb[XDIR_NumSec] + 1;
/* Store the set of directory to the volume */
res = dir_sdi(dp, dp->blk_ofs);
while (res == FR_OK) {
res = move_window(dp->obj.fs, dp->sect);
if (res != FR_OK) break;
mem_cpy(dp->dir, dirb, SZDIRE);
dp->obj.fs->wflag = 1;
if (--nent == 0) break;
dirb += SZDIRE;
res = dir_next(dp, 0);
}
return (res == FR_OK || res == FR_DISK_ERR) ? res : FR_INT_ERR;
}
/*-------------------------------------------*/
/* exFAT: Create a new directory enrty block */
/*-------------------------------------------*/
static
void create_xdir (
BYTE* dirb, /* Pointer to the direcotry entry block buffer */
const WCHAR* lfn /* Pointer to the nul terminated file name */
)
{
UINT i;
BYTE nb, nc;
WCHAR chr;
/* Create 85+C0 entry */
mem_set(dirb, 0, 2 * SZDIRE);
dirb[XDIR_Type] = 0x85;
dirb[XDIR_Type + SZDIRE] = 0xC0;
/* Create C1 entries */
nc = 0; nb = 1; chr = 1; i = SZDIRE * 2;
do {
dirb[i++] = 0xC1; dirb[i++] = 0; /* Entry type C1 */
do { /* Fill name field */
if (chr && (chr = lfn[nc]) != 0) nc++; /* Get a character if exist */
st_word(dirb + i, chr); /* Store it */
} while ((i += 2) % SZDIRE != 0);
nb++;
} while (lfn[nc]); /* Fill next entry if any char follows */
dirb[XDIR_NumName] = nc; /* Set name length */
dirb[XDIR_NumSec] = nb; /* Set block length */
st_word(dirb + XDIR_NameHash, xname_sum(lfn)); /* Set name hash */
}
#endif /* !_FS_READONLY */
#endif /* _FS_EXFAT */
#if _FS_MINIMIZE <= 1 || _FS_RPATH >= 2 || _USE_LABEL || _FS_EXFAT
/*-----------------------------------------------------------------------*/
/* Read an object from the directory */
/*-----------------------------------------------------------------------*/
static
FRESULT dir_read (
DIR* dp, /* Pointer to the directory object */
int vol /* Filtered by 0:file/directory or 1:volume label */
)
{
FRESULT res = FR_NO_FILE;
FATFS *fs = dp->obj.fs;
BYTE a, c;
#if _USE_LFN != 0
BYTE ord = 0xFF, sum = 0xFF;
#endif
while (dp->sect) {
res = move_window(fs, dp->sect);
if (res != FR_OK) break;
c = dp->dir[DIR_Name]; /* Test for the entry type */
if (c == 0) {
res = FR_NO_FILE; break; /* Reached to end of the directory */
}
#if _FS_EXFAT
if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */
if (_USE_LABEL && vol) {
if (c == 0x83) break; /* Volume label entry? */
} else {
if (c == 0x85) { /* Start of the file entry block? */
dp->blk_ofs = dp->dptr; /* Get location of the block */
res = load_xdir(dp); /* Load the entry block */
if (res == FR_OK) {
dp->obj.attr = fs->dirbuf[XDIR_Attr] & AM_MASK; /* Get attribute */
}
break;
}
}
} else
#endif
{ /* On the FAT12/16/32 volume */
dp->obj.attr = a = dp->dir[DIR_Attr] & AM_MASK; /* Get attribute */
#if _USE_LFN != 0 /* LFN configuration */
if (c == DDEM || c == '.' || (int)((a & ~AM_ARC) == AM_VOL) != vol) { /* An entry without valid data */
ord = 0xFF;
} else {
if (a == AM_LFN) { /* An LFN entry is found */
if (c & LLEF) { /* Is it start of an LFN sequence? */
sum = dp->dir[LDIR_Chksum];
c &= (BYTE)~LLEF; ord = c;
dp->blk_ofs = dp->dptr;
}
/* Check LFN validity and capture it */
ord = (c == ord && sum == dp->dir[LDIR_Chksum] && pick_lfn(fs->lfnbuf, dp->dir)) ? ord - 1 : 0xFF;
} else { /* An SFN entry is found */
if (ord || sum != sum_sfn(dp->dir)) { /* Is there a valid LFN? */
dp->blk_ofs = 0xFFFFFFFF; /* It has no LFN. */
}
break;
}
}
#else /* Non LFN configuration */
if (c != DDEM && c != '.' && a != AM_LFN && (int)((a & ~AM_ARC) == AM_VOL) == vol) { /* Is it a valid entry? */
break;
}
#endif
}
res = dir_next(dp, 0); /* Next entry */
if (res != FR_OK) break;
}
if (res != FR_OK) dp->sect = 0; /* Terminate the read operation on error or EOT */
return res;
}
#endif /* _FS_MINIMIZE <= 1 || _USE_LABEL || _FS_RPATH >= 2 */
/*-----------------------------------------------------------------------*/
/* Directory handling - Find an object in the directory */
/*-----------------------------------------------------------------------*/
static
FRESULT dir_find ( /* FR_OK(0):succeeded, !=0:error */
DIR* dp /* Pointer to the directory object with the file name */
)
{
FRESULT res;
FATFS *fs = dp->obj.fs;
BYTE c;
#if _USE_LFN != 0
BYTE a, ord, sum;
#endif
res = dir_sdi(dp, 0); /* Rewind directory object */
if (res != FR_OK) return res;
#if _FS_EXFAT
if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */
BYTE nc;
UINT di, ni;
WORD hash = xname_sum(fs->lfnbuf); /* Hash value of the name to find */
while ((res = dir_read(dp, 0)) == FR_OK) { /* Read an item */
#if _MAX_LFN < 255
if (fs->dirbuf[XDIR_NumName] > _MAX_LFN) continue; /* Skip comparison if inaccessible object name */
#endif
if (ld_word(fs->dirbuf + XDIR_NameHash) != hash) continue; /* Skip comparison if hash mismatched */
for (nc = fs->dirbuf[XDIR_NumName], di = SZDIRE * 2, ni = 0; nc; nc--, di += 2, ni++) { /* Compare the name */
if ((di % SZDIRE) == 0) di += 2;
if (ff_wtoupper(ld_word(fs->dirbuf + di)) != ff_wtoupper(fs->lfnbuf[ni])) break;
}
if (nc == 0 && !fs->lfnbuf[ni]) break; /* Name matched? */
}
return res;
}
#endif
/* On the FAT12/16/32 volume */
#if _USE_LFN != 0
ord = sum = 0xFF; dp->blk_ofs = 0xFFFFFFFF; /* Reset LFN sequence */
#endif
do {
res = move_window(fs, dp->sect);
if (res != FR_OK) break;
c = dp->dir[DIR_Name];
if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
#if _USE_LFN != 0 /* LFN configuration */
dp->obj.attr = a = dp->dir[DIR_Attr] & AM_MASK;
if (c == DDEM || ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
ord = 0xFF; dp->blk_ofs = 0xFFFFFFFF; /* Reset LFN sequence */
} else {
if (a == AM_LFN) { /* An LFN entry is found */
if (!(dp->fn[NSFLAG] & NS_NOLFN)) {
if (c & LLEF) { /* Is it start of LFN sequence? */
sum = dp->dir[LDIR_Chksum];
c &= (BYTE)~LLEF; ord = c; /* LFN start order */
dp->blk_ofs = dp->dptr; /* Start offset of LFN */
}
/* Check validity of the LFN entry and compare it with given name */
ord = (c == ord && sum == dp->dir[LDIR_Chksum] && cmp_lfn(fs->lfnbuf, dp->dir)) ? ord - 1 : 0xFF;
}
} else { /* An SFN entry is found */
if (!ord && sum == sum_sfn(dp->dir)) break; /* LFN matched? */
if (!(dp->fn[NSFLAG] & NS_LOSS) && !mem_cmp(dp->dir, dp->fn, 11)) break; /* SFN matched? */
ord = 0xFF; dp->blk_ofs = 0xFFFFFFFF; /* Reset LFN sequence */
}
}
#else /* Non LFN configuration */
dp->obj.attr = dp->dir[DIR_Attr] & AM_MASK;
if (!(dp->dir[DIR_Attr] & AM_VOL) && !mem_cmp(dp->dir, dp->fn, 11)) break; /* Is it a valid entry? */
#endif
res = dir_next(dp, 0); /* Next entry */
} while (res == FR_OK);
return res;
}
#if !_FS_READONLY
/*-----------------------------------------------------------------------*/
/* Register an object to the directory */
/*-----------------------------------------------------------------------*/
static
FRESULT dir_register ( /* FR_OK:succeeded, FR_DENIED:no free entry or too many SFN collision, FR_DISK_ERR:disk error */
DIR* dp /* Target directory with object name to be created */
)
{
FRESULT res = 0;
FATFS *fs = dp->obj.fs;
#if _USE_LFN != 0 /* LFN configuration */
UINT n, nlen, nent;
BYTE sn[12], sum;
if (dp->fn[NSFLAG] & (NS_DOT | NS_NONAME)) return FR_INVALID_NAME; /* Check name validity */
for (nlen = 0; fs->lfnbuf[nlen]; nlen++) ; /* Get lfn length */
#if _FS_EXFAT
if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */
DIR dj;
nent = (nlen + 14) / 15 + 2; /* Number of entries to allocate (85+C0+C1s) */
res = dir_alloc(dp, nent); /* Allocate entries */
if (res != FR_OK) return res;
dp->blk_ofs = dp->dptr - SZDIRE * (nent - 1); /* Set the allocated entry block offset */
if (dp->obj.sclust != 0 && (dp->obj.stat & 4)) { /* Has the sub-directory been stretched? */
dp->obj.objsize += (DWORD)fs->csize * SS(fs); /* Increase the directory size by cluster size */
res = fill_first_frag(&dp->obj); /* Fill first fragment on the FAT if needed */
if (res != FR_OK) return res;
res = fill_last_frag(&dp->obj, dp->clust, 0xFFFFFFFF); /* Fill last fragment on the FAT if needed */
if (res != FR_OK) return res;
res = load_obj_dir(&dj, &dp->obj); /* Load the object status */
if (res != FR_OK) return res;
st_qword(fs->dirbuf + XDIR_FileSize, dp->obj.objsize); /* Update the allocation status */
st_qword(fs->dirbuf + XDIR_ValidFileSize, dp->obj.objsize);
fs->dirbuf[XDIR_GenFlags] = dp->obj.stat | 1;
res = store_xdir(&dj); /* Store the object status */
if (res != FR_OK) return res;
}
create_xdir(fs->dirbuf, fs->lfnbuf); /* Create on-memory directory block to be written later */
return FR_OK;
}
#endif
/* On the FAT12/16/32 volume */
mem_cpy(sn, dp->fn, 12);
if (sn[NSFLAG] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */
dp->fn[NSFLAG] = NS_NOLFN; /* Find only SFN */
for (n = 1; n < 100; n++) {
gen_numname(dp->fn, sn, fs->lfnbuf, n); /* Generate a numbered name */
res = dir_find(dp); /* Check if the name collides with existing SFN */
if (res != FR_OK) break;
}
if (n == 100) return FR_DENIED; /* Abort if too many collisions */
if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */
dp->fn[NSFLAG] = sn[NSFLAG];
}
/* Create an SFN with/without LFNs. */
nent = (sn[NSFLAG] & NS_LFN) ? (nlen + 12) / 13 + 1 : 1; /* Number of entries to allocate */
res = dir_alloc(dp, nent); /* Allocate entries */
if (res == FR_OK && --nent) { /* Set LFN entry if needed */
res = dir_sdi(dp, dp->dptr - nent * SZDIRE);
if (res == FR_OK) {
sum = sum_sfn(dp->fn); /* Checksum value of the SFN tied to the LFN */
do { /* Store LFN entries in bottom first */
res = move_window(fs, dp->sect);
if (res != FR_OK) break;
put_lfn(fs->lfnbuf, dp->dir, (BYTE)nent, sum);
fs->wflag = 1;
res = dir_next(dp, 0); /* Next entry */
} while (res == FR_OK && --nent);
}
}
#else /* Non LFN configuration */
res = dir_alloc(dp, 1); /* Allocate an entry for SFN */
#endif
/* Set SFN entry */
if (res == FR_OK) {
res = move_window(fs, dp->sect);
if (res == FR_OK) {
mem_set(dp->dir, 0, SZDIRE); /* Clean the entry */
mem_cpy(dp->dir + DIR_Name, dp->fn, 11); /* Put SFN */
#if _USE_LFN != 0
dp->dir[DIR_NTres] = dp->fn[NSFLAG] & (NS_BODY | NS_EXT); /* Put NT flag */
#endif
fs->wflag = 1;
}
}
return res;
}
#endif /* !_FS_READONLY */
#if !_FS_READONLY && _FS_MINIMIZE == 0
/*-----------------------------------------------------------------------*/
/* Remove an object from the directory */
/*-----------------------------------------------------------------------*/
static
FRESULT dir_remove ( /* FR_OK:Succeeded, FR_DISK_ERR:A disk error */
DIR* dp /* Directory object pointing the entry to be removed */
)
{
FRESULT res;
FATFS *fs = dp->obj.fs;
#if _USE_LFN != 0 /* LFN configuration */
DWORD last = dp->dptr;
res = (dp->blk_ofs == 0xFFFFFFFF) ? FR_OK : dir_sdi(dp, dp->blk_ofs); /* Goto top of the entry block if LFN is exist */
if (res == FR_OK) {
do {
res = move_window(fs, dp->sect);
if (res != FR_OK) break;
/* Mark an entry 'deleted' */
if (_FS_EXFAT && fs->fs_type == FS_EXFAT) { /* On the exFAT volume */
dp->dir[XDIR_Type] &= 0x7F;
} else { /* On the FAT12/16/32 volume */
dp->dir[DIR_Name] = DDEM;
}
fs->wflag = 1;
if (dp->dptr >= last) break; /* If reached last entry then all entries of the object has been deleted. */
res = dir_next(dp, 0); /* Next entry */
} while (res == FR_OK);
if (res == FR_NO_FILE) res = FR_INT_ERR;
}
#else /* Non LFN configuration */
res = move_window(fs, dp->sect);
if (res == FR_OK) {
dp->dir[DIR_Name] = DDEM;
fs->wflag = 1;
}
#endif
return res;
}
#endif /* !_FS_READONLY && _FS_MINIMIZE == 0 */
#if _FS_MINIMIZE <= 1 || _FS_RPATH >= 2
/*-----------------------------------------------------------------------*/
/* Get file information from directory entry */
/*-----------------------------------------------------------------------*/
static
void get_fileinfo ( /* No return code */
DIR* dp, /* Pointer to the directory object */
FILINFO* fno /* Pointer to the file information to be filled */
)
{
UINT i, j;
TCHAR c;
DWORD tm;
#if _USE_LFN != 0
WCHAR w, lfv;
FATFS *fs = dp->obj.fs;
#endif
fno->fname[0] = 0; /* Invaidate file info */
if (!dp->sect) return; /* Exit if read pointer has reached end of directory */
#if _USE_LFN != 0 /* LFN configuration */
#if _FS_EXFAT
if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */
get_xdir_info(fs->dirbuf, fno);
return;
} else
#endif
{ /* On the FAT12/16/32 volume */
if (dp->blk_ofs != 0xFFFFFFFF) { /* Get LFN if available */
i = j = 0;
while ((w = fs->lfnbuf[j++]) != 0) { /* Get an LFN character */
#if !_LFN_UNICODE
if(w >= 0x80)w = ff_convert(w, 0); /* Unicode -> OEM */
if (w == 0) { i = 0; break; } /* No LFN if it could not be converted */
if (_DF1S && w >= 0x100) { /* Put 1st byte if it is a DBC (always false at SBCS cfg) */
fno->fname[i++] = (char)(w >> 8);
}
#endif
if (i >= _MAX_LFN) { i = 0; break; } /* No LFN if buffer overflow */
fno->fname[i++] = (TCHAR)w;
}
fno->fname[i] = 0; /* Terminate the LFN */
}
}
i = j = 0;
lfv = fno->fname[i]; /* LFN is exist if non-zero */
while (i < 11) { /* Copy name body and extension */
c = (TCHAR)dp->dir[i++];
if (c == ' ') continue; /* Skip padding spaces */
if (c == RDDEM) c = (TCHAR)DDEM; /* Restore replaced DDEM character */
if (i == 9) { /* Insert a . if extension is exist */
if (!lfv) fno->fname[j] = '.';
fno->altname[j++] = '.';
}
#if _LFN_UNICODE
if (IsDBCS1(c) && i != 8 && i != 11 && IsDBCS2(dp->dir[i])) {
c = c << 8 | dp->dir[i++];
}
c = ff_convert(c, 1); /* OEM -> Unicode */
if (!c) c = '?';
#endif
fno->altname[j] = c;
if (!lfv) {
if (IsUpper(c) && (dp->dir[DIR_NTres] & ((i >= 9) ? NS_EXT : NS_BODY))) {
c += 0x20; /* To lower */
}
fno->fname[j] = c;
}
j++;
}
if (!lfv) {
fno->fname[j] = 0;
if (!dp->dir[DIR_NTres]) j = 0; /* Altname is no longer needed if neither LFN nor case info is exist. */
}
fno->altname[j] = 0; /* Terminate the SFN */
#else /* Non-LFN configuration */
i = j = 0;
while (i < 11) { /* Copy name body and extension */
c = (TCHAR)dp->dir[i++];
if (c == ' ') continue; /* Skip padding spaces */
if (c == RDDEM) c = (TCHAR)DDEM; /* Restore replaced DDEM character */
if (i == 9) fno->fname[j++] = '.'; /* Insert a . if extension is exist */
fno->fname[j++] = c;
}
fno->fname[j] = 0;
#endif
fno->fattrib = dp->dir[DIR_Attr]; /* Attribute */
fno->fsize = ld_dword(dp->dir + DIR_FileSize); /* Size */
tm = ld_dword(dp->dir + DIR_ModTime); /* Timestamp */
fno->ftime = (WORD)tm; fno->fdate = (WORD)(tm >> 16);
}
#endif /* _FS_MINIMIZE <= 1 || _FS_RPATH >= 2 */
#if _USE_FIND && _FS_MINIMIZE <= 1
/*-----------------------------------------------------------------------*/
/* Pattern matching */
/*-----------------------------------------------------------------------*/
static
WCHAR get_achar ( /* Get a character and advances ptr 1 or 2 */
const TCHAR** ptr /* Pointer to pointer to the SBCS/DBCS/Unicode string */
)
{
#if !_LFN_UNICODE
WCHAR chr;
chr = (BYTE)*(*ptr)++; /* Get a byte */
if (IsLower(chr)) chr -= 0x20; /* To upper ASCII char */
#ifdef _EXCVT
if (chr >= 0x80) chr = ExCvt[chr - 0x80]; /* To upper SBCS extended char */
#else
if (IsDBCS1(chr) && IsDBCS2(**ptr)) { /* Get DBC 2nd byte if needed */
chr = chr << 8 | (BYTE)*(*ptr)++;
}
#endif
return chr;
#else
return ff_wtoupper(*(*ptr)++); /* Get a word and to upper */
#endif
}
static
int pattern_matching ( /* 0:not matched, 1:matched */
const TCHAR* pat, /* Matching pattern */
const TCHAR* nam, /* String to be tested */
int skip, /* Number of pre-skip chars (number of ?s) */
int inf /* Infinite search (* specified) */
)
{
const TCHAR *pp, *np;
WCHAR pc, nc;
int nm, nx;
while (skip--) { /* Pre-skip name chars */
if (!get_achar(&nam)) return 0; /* Branch mismatched if less name chars */
}
if (!*pat && inf) return 1; /* (short circuit) */
do {
pp = pat; np = nam; /* Top of pattern and name to match */
for (;;) {
if (*pp == '?' || *pp == '*') { /* Wildcard? */
nm = nx = 0;
do { /* Analyze the wildcard chars */
if (*pp++ == '?') nm++; else nx = 1;
} while (*pp == '?' || *pp == '*');
if (pattern_matching(pp, np, nm, nx)) return 1; /* Test new branch (recurs upto number of wildcard blocks in the pattern) */
nc = *np; break; /* Branch mismatched */
}
pc = get_achar(&pp); /* Get a pattern char */
nc = get_achar(&np); /* Get a name char */
if (pc != nc) break; /* Branch mismatched? */
if (pc == 0) return 1; /* Branch matched? (matched at end of both strings) */
}
get_achar(&nam); /* nam++ */
} while (inf && nc); /* Retry until end of name if infinite search is specified */
return 0;
}
#endif /* _USE_FIND && _FS_MINIMIZE <= 1 */
/*-----------------------------------------------------------------------*/
/* Pick a top segment and create the object name in directory form */
/*-----------------------------------------------------------------------*/
static
FRESULT create_name ( /* FR_OK: successful, FR_INVALID_NAME: could not create */
DIR* dp, /* Pointer to the directory object */
const TCHAR** path /* Pointer to pointer to the segment in the path string */
)
{
#if _USE_LFN != 0 /* LFN configuration */
BYTE b, cf;
WCHAR w, *lfn;
UINT i, ni, si, di;
const TCHAR *p;
/* Create LFN in Unicode */
p = *path; lfn = dp->obj.fs->lfnbuf; si = di = 0;
for (;;) {
w = p[si++]; /* Get a character */
if (w < ' ') break; /* Break if end of the path name */
if (w == '/' || w == '\\') { /* Break if a separator is found */
while (p[si] == '/' || p[si] == '\\') si++; /* Skip duplicated separator if exist */
break;
}
if (di >= _MAX_LFN) return FR_INVALID_NAME; /* Reject too long name */
#if !_LFN_UNICODE
w &= 0xFF;
if (IsDBCS1(w)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
b = (BYTE)p[si++]; /* Get 2nd byte */
w = (w << 8) + b; /* Create a DBC */
if (!IsDBCS2(b)) return FR_INVALID_NAME; /* Reject invalid sequence */
}
w = ff_convert(w, 1); /* Convert ANSI/OEM to Unicode */
if (!w) return FR_INVALID_NAME; /* Reject invalid code */
#endif
if (w < 0x80 && chk_chr("\"*:<>\?|\x7F", w)) return FR_INVALID_NAME; /* Reject illegal characters for LFN */
lfn[di++] = w; /* Store the Unicode character */
}
*path = &p[si]; /* Return pointer to the next segment */
cf = (w < ' ') ? NS_LAST : 0; /* Set last segment flag if end of the path */
#if _FS_RPATH != 0
if ((di == 1 && lfn[di - 1] == '.') ||
(di == 2 && lfn[di - 1] == '.' && lfn[di - 2] == '.')) { /* Is this segment a dot name? */
lfn[di] = 0;
for (i = 0; i < 11; i++) /* Create dot name for SFN entry */
dp->fn[i] = (i < di) ? '.' : ' ';
dp->fn[i] = cf | NS_DOT; /* This is a dot entry */
return FR_OK;
}
#endif
while (di) { /* Snip off trailing spaces and dots if exist */
w = lfn[di - 1];
if (w != ' ' && w != '.') break;
di--;
}
lfn[di] = 0; /* LFN is created */
if (di == 0) return FR_INVALID_NAME; /* Reject nul name */
/* Create SFN in directory form */
mem_set(dp->fn, ' ', 11);
for (si = 0; lfn[si] == ' ' || lfn[si] == '.'; si++) ; /* Strip leading spaces and dots */
if (si) cf |= NS_LOSS | NS_LFN;
while (di && lfn[di - 1] != '.') di--; /* Find extension (di<=si: no extension) */
i = b = 0; ni = 8;
for (;;) {
w = lfn[si++]; /* Get an LFN character */
if (!w) break; /* Break on end of the LFN */
if (w == ' ' || (w == '.' && si != di)) { /* Remove spaces and dots */
cf |= NS_LOSS | NS_LFN; continue;
}
if (i >= ni || si == di) { /* Extension or end of SFN */
if (ni == 11) { /* Long extension */
cf |= NS_LOSS | NS_LFN; break;
}
if (si != di) cf |= NS_LOSS | NS_LFN; /* Out of 8.3 format */
if (si > di) break; /* No extension */
si = di; i = 8; ni = 11; /* Enter extension section */
b <<= 2; continue;
}
if (w >= 0x80) { /* Non ASCII character */
#ifdef _EXCVT
w = ff_convert(w, 0); /* Unicode -> OEM code */
if (w) w = ExCvt[w - 0x80]; /* Convert extended character to upper (SBCS) */
#else
w = ff_convert(ff_wtoupper(w), 0); /* Upper converted Unicode -> OEM code */
#endif
cf |= NS_LFN; /* Force create LFN entry */
}
if (_DF1S && w >= 0x100) { /* Is this DBC? (always false at SBCS cfg) */
if (i >= ni - 1) {
cf |= NS_LOSS | NS_LFN; i = ni; continue;
}
dp->fn[i++] = (BYTE)(w >> 8);
} else { /* SBC */
if (!w || chk_chr("+,;=[]", w)) { /* Replace illegal characters for SFN */
w = '_'; cf |= NS_LOSS | NS_LFN;/* Lossy conversion */
} else {
if (IsUpper(w)) { /* ASCII large capital */
b |= 2;
} else {
if (IsLower(w)) { /* ASCII small capital */
b |= 1; w -= 0x20;
}
}
}
}
dp->fn[i++] = (BYTE)w;
}
if (dp->fn[0] == DDEM) dp->fn[0] = RDDEM; /* If the first character collides with DDEM, replace it with RDDEM */
if (ni == 8) b <<= 2;
if ((b & 0x0C) == 0x0C || (b & 0x03) == 0x03) cf |= NS_LFN; /* Create LFN entry when there are composite capitals */
if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended character, NT flags are created */
if ((b & 0x03) == 0x01) cf |= NS_EXT; /* NT flag (Extension has only small capital) */
if ((b & 0x0C) == 0x04) cf |= NS_BODY; /* NT flag (Filename has only small capital) */
}
dp->fn[NSFLAG] = cf; /* SFN is created */
return FR_OK;
#else /* _USE_LFN != 0 : Non-LFN configuration */
BYTE c, d, *sfn;
UINT ni, si, i;
const char *p;
/* Create file name in directory form */
p = *path; sfn = dp->fn;
mem_set(sfn, ' ', 11);
si = i = 0; ni = 8;
#if _FS_RPATH != 0
if (p[si] == '.') { /* Is this a dot entry? */
for (;;) {
c = (BYTE)p[si++];
if (c != '.' || si >= 3) break;
sfn[i++] = c;
}
if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME;
*path = p + si; /* Return pointer to the next segment */
sfn[NSFLAG] = (c <= ' ') ? NS_LAST | NS_DOT : NS_DOT; /* Set last segment flag if end of the path */
return FR_OK;
}
#endif
for (;;) {
c = (BYTE)p[si++];
if (c <= ' ') break; /* Break if end of the path name */
if (c == '/' || c == '\\') { /* Break if a separator is found */
while (p[si] == '/' || p[si] == '\\') si++; /* Skip duplicated separator if exist */
break;
}
if (c == '.' || i >= ni) { /* End of body or over size? */
if (ni == 11 || c != '.') return FR_INVALID_NAME; /* Over size or invalid dot */
i = 8; ni = 11; /* Goto extension */
continue;
}
if (c >= 0x80) { /* Extended character? */
#ifdef _EXCVT
c = ExCvt[c - 0x80]; /* To upper extended characters (SBCS cfg) */
#else
#if !_DF1S
return FR_INVALID_NAME; /* Reject extended characters (ASCII only cfg) */
#endif
#endif
}
if (IsDBCS1(c)) { /* Check if it is a DBC 1st byte (always false at SBCS cfg.) */
d = (BYTE)p[si++]; /* Get 2nd byte */
if (!IsDBCS2(d) || i >= ni - 1) return FR_INVALID_NAME; /* Reject invalid DBC */
sfn[i++] = c;
sfn[i++] = d;
} else { /* SBC */
if (chk_chr("\"*+,:;<=>\?[]|\x7F", c)) return FR_INVALID_NAME; /* Reject illegal chrs for SFN */
if (IsLower(c)) c -= 0x20; /* To upper */
sfn[i++] = c;
}
}
*path = p + si; /* Return pointer to the next segment */
if (i == 0) return FR_INVALID_NAME; /* Reject nul string */
if (sfn[0] == DDEM) sfn[0] = RDDEM; /* If the first character collides with DDEM, replace it with RDDEM */
sfn[NSFLAG] = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of the path */
return FR_OK;
#endif /* _USE_LFN != 0 */
}
/*-----------------------------------------------------------------------*/
/* Follow a file path */
/*-----------------------------------------------------------------------*/
static
FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */
DIR* dp, /* Directory object to return last directory and found object */
const TCHAR* path /* Full-path string to find a file or directory */
)
{
FRESULT res;
BYTE ns;
_FDID *obj = &dp->obj;
FATFS *fs = obj->fs;
#if _FS_RPATH != 0
if (*path != '/' && *path != '\\') { /* Without heading separator */
obj->sclust = fs->cdir; /* Start from current directory */
} else
#endif
{ /* With heading separator */
while (*path == '/' || *path == '\\') path++; /* Strip heading separator */
obj->sclust = 0; /* Start from root directory */
}
#if _FS_EXFAT
obj->n_frag = 0; /* Invalidate last fragment counter of the object */
#if _FS_RPATH != 0
if (fs->fs_type == FS_EXFAT && obj->sclust) { /* Retrieve the sub-directory status if needed */
DIR dj;
obj->c_scl = fs->cdc_scl;
obj->c_size = fs->cdc_size;
obj->c_ofs = fs->cdc_ofs;
res = load_obj_dir(&dj, obj);
if (res != FR_OK) return res;
obj->objsize = ld_dword(fs->dirbuf + XDIR_FileSize);
obj->stat = fs->dirbuf[XDIR_GenFlags] & 2;
}
#endif
#endif
if ((UINT)*path < ' ') { /* Null path name is the origin directory itself */
dp->fn[NSFLAG] = NS_NONAME;
res = dir_sdi(dp, 0);
} else { /* Follow path */
for (;;) {
res = create_name(dp, &path); /* Get a segment name of the path */
if (res != FR_OK) break;
res = dir_find(dp); /* Find an object with the segment name */
ns = dp->fn[NSFLAG];
if (res != FR_OK) { /* Failed to find the object */
if (res == FR_NO_FILE) { /* Object is not found */
if (_FS_RPATH && (ns & NS_DOT)) { /* If dot entry is not exist, stay there */
if (!(ns & NS_LAST)) continue; /* Continue to follow if not last segment */
dp->fn[NSFLAG] = NS_NONAME;
res = FR_OK;
} else { /* Could not find the object */
if (!(ns & NS_LAST)) res = FR_NO_PATH; /* Adjust error code if not last segment */
}
}
break;
}
if (ns & NS_LAST) break; /* Last segment matched. Function completed. */
/* Get into the sub-directory */
if (!(obj->attr & AM_DIR)) { /* It is not a sub-directory and cannot follow */
res = FR_NO_PATH; break;
}
#if _FS_EXFAT
if (fs->fs_type == FS_EXFAT) { /* Save containing directory information for next dir */
obj->c_scl = obj->sclust;
obj->c_size = ((DWORD)obj->objsize & 0xFFFFFF00) | obj->stat;
obj->c_ofs = dp->blk_ofs;
obj->sclust = ld_dword(fs->dirbuf + XDIR_FstClus); /* Open next directory */
obj->stat = fs->dirbuf[XDIR_GenFlags] & 2;
obj->objsize = ld_qword(fs->dirbuf + XDIR_FileSize);
} else
#endif
{
obj->sclust = ld_clust(fs, fs->win + dp->dptr % SS(fs)); /* Open next directory */
}
}
}
return res;
}
/*-----------------------------------------------------------------------*/
/* Get logical drive number from path name */
/*-----------------------------------------------------------------------*/
static
int get_ldnumber ( /* Returns logical drive number (-1:invalid drive) */
const TCHAR** path /* Pointer to pointer to the path name */
)
{
const TCHAR *tp, *tt;
UINT i;
int vol = -1;
#if _STR_VOLUME_ID /* Find string drive id */
static const char* const volid[] = {_VOLUME_STRS};
const char *sp;
char c;
TCHAR tc;
#endif
if (*path) { /* If the pointer is not a null */
for (tt = *path; (UINT)*tt >= (_USE_LFN ? ' ' : '!') && *tt != ':'; tt++) ; /* Find ':' in the path */
if (*tt == ':') { /* If a ':' is exist in the path name */
tp = *path;
i = *tp++ - '0';
if (i < 10 && tp == tt) { /* Is there a numeric drive id? */
if (i < _VOLUMES) { /* If a drive id is found, get the value and strip it */
vol = (int)i;
*path = ++tt;
}
}
#if _STR_VOLUME_ID
else { /* No numeric drive number, find string drive id */
i = 0; tt++;
do {
sp = volid[i]; tp = *path;
do { /* Compare a string drive id with path name */
c = *sp++; tc = *tp++;
if (IsLower(tc)) tc -= 0x20;
} while (c && (TCHAR)c == tc);
} while ((c || tp != tt) && ++i < _VOLUMES); /* Repeat for each id until pattern match */
if (i < _VOLUMES) { /* If a drive id is found, get the value and strip it */
vol = (int)i;
*path = tt;
}
}
#endif
return vol;
}
#if _FS_RPATH != 0 && _VOLUMES >= 2
vol = CurrVol; /* Current drive */
#else
vol = 0; /* Drive 0 */
#endif
}
return vol;
}
/*-----------------------------------------------------------------------*/
/* Load a sector and check if it is an FAT boot sector */
/*-----------------------------------------------------------------------*/
static
BYTE check_fs ( /* 0:FAT, 1:exFAT, 2:Valid BS but not FAT, 3:Not a BS, 4:Disk error */
FATFS* fs, /* File system object */
DWORD sect /* Sector# (lba) to load and check if it is an FAT-VBR or not */
)
{
fs->wflag = 0; fs->winsect = 0xFFFFFFFF; /* Invaidate window */
if (move_window(fs, sect) != FR_OK) return 4; /* Load boot record */
if (ld_word(fs->win + BS_55AA) != 0xAA55) return 3; /* Check boot record signature (always placed here even if the sector size is >512) */
if (fs->win[BS_JmpBoot] == 0xE9 || (fs->win[BS_JmpBoot] == 0xEB && fs->win[BS_JmpBoot + 2] == 0x90)) {
if ((ld_dword(fs->win + BS_FilSysType) & 0xFFFFFF) == 0x544146) return 0; /* Check "FAT" string */
if (ld_dword(fs->win + BS_FilSysType32) == 0x33544146) return 0; /* Check "FAT3" string */
}
#if _FS_EXFAT
if (!mem_cmp(fs->win + BS_JmpBoot, "\xEB\x76\x90" "EXFAT ", 11)) return 1;
#endif
return 2;
}
/*-----------------------------------------------------------------------*/
/* Find logical drive and check if the volume is mounted */
/*-----------------------------------------------------------------------*/
static
FRESULT find_volume ( /* FR_OK(0): successful, !=0: any error occurred */
const TCHAR** path, /* Pointer to pointer to the path name (drive number) */
FATFS** rfs, /* Pointer to pointer to the found file system object */
BYTE mode /* !=0: Check write protection for write access */
)
{
BYTE fmt, *pt;
int vol;
DSTATUS stat;
DWORD bsect, fasize, tsect, sysect, nclst, szbfat, br[4];
WORD nrsv;
FATFS *fs;
UINT i;
/* Get logical drive number */
*rfs = 0;
vol = get_ldnumber(path);
if (vol < 0) return FR_INVALID_DRIVE;
/* Check if the file system object is valid or not */
fs = FatFs[vol]; /* Get pointer to the file system object */
if (!fs) return FR_NOT_ENABLED; /* Is the file system object available? */
ENTER_FF(fs); /* Lock the volume */
*rfs = fs; /* Return pointer to the file system object */
mode &= (BYTE)~FA_READ; /* Desired access mode, write access or not */
if (fs->fs_type) { /* If the volume has been mounted */
stat = disk_status(fs->drv);
if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized */
if (!_FS_READONLY && mode && (stat & STA_PROTECT)) { /* Check write protection if needed */
return FR_WRITE_PROTECTED;
}
return FR_OK; /* The file system object is valid */
}
}
/* The file system object is not valid. */
/* Following code attempts to mount the volume. (analyze BPB and initialize the fs object) */
fs->fs_type = 0; /* Clear the file system object */
fs->drv = LD2PD(vol); /* Bind the logical drive and a physical drive */
stat = disk_initialize(fs->drv); /* Initialize the physical drive */
if (stat & STA_NOINIT) { /* Check if the initialization succeeded */
return FR_NOT_READY; /* Failed to initialize due to no medium or hard error */
}
if (!_FS_READONLY && mode && (stat & STA_PROTECT)) { /* Check disk write protection if needed */
return FR_WRITE_PROTECTED;
}
#if _MAX_SS != _MIN_SS /* Get sector size (multiple sector size cfg only) */
if (disk_ioctl(fs->drv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK) return FR_DISK_ERR;
if (SS(fs) > _MAX_SS || SS(fs) < _MIN_SS || (SS(fs) & (SS(fs) - 1))) return FR_DISK_ERR;
#endif
/* Find an FAT partition on the drive. Supports only generic partitioning rules, FDISK and SFD. */
bsect = 0;
fmt = check_fs(fs, bsect); /* Load sector 0 and check if it is an FAT-VBR as SFD */
if (fmt == 2 || (fmt < 2 && LD2PT(vol) != 0)) { /* Not an FAT-VBR or forced partition number */
for (i = 0; i < 4; i++) { /* Get partition offset */
pt = fs->win + (MBR_Table + i * SZ_PTE);
br[i] = pt[PTE_System] ? ld_dword(pt + PTE_StLba) : 0;
}
i = LD2PT(vol); /* Partition number: 0:auto, 1-4:forced */
if (i) i--;
do { /* Find an FAT volume */
bsect = br[i];
fmt = bsect ? check_fs(fs, bsect) : 3; /* Check the partition */
} while (LD2PT(vol) == 0 && fmt >= 2 && ++i < 4);
}
if (fmt == 4) return FR_DISK_ERR; /* An error occured in the disk I/O layer */
if (fmt >= 2) return FR_NO_FILESYSTEM; /* No FAT volume is found */
/* An FAT volume is found (bsect). Following code initializes the file system object */
#if _FS_EXFAT
if (fmt == 1) {
QWORD maxlba;
for (i = BPB_ZeroedEx; i < BPB_ZeroedEx + 53 && fs->win[i] == 0; i++) ; /* Check zero filler */
if (i < BPB_ZeroedEx + 53) return FR_NO_FILESYSTEM;
if (ld_word(fs->win + BPB_FSVerEx) != 0x100) return FR_NO_FILESYSTEM; /* Check exFAT revision (Must be 1.0) */
if (1 << fs->win[BPB_BytsPerSecEx] != SS(fs)) { /* (BPB_BytsPerSecEx must be equal to the physical sector size) */
return FR_NO_FILESYSTEM;
}
maxlba = ld_qword(fs->win + BPB_TotSecEx) + bsect; /* Last LBA + 1 of the volume */
if (maxlba >= 0x100000000) return FR_NO_FILESYSTEM; /* (It cannot be handled in 32-bit LBA) */
fs->fsize = ld_dword(fs->win + BPB_FatSzEx); /* Number of sectors per FAT */
fs->n_fats = fs->win[BPB_NumFATsEx]; /* Number of FATs */
if (fs->n_fats != 1) return FR_NO_FILESYSTEM; /* (Supports only 1 FAT) */
fs->csize = 1 << fs->win[BPB_SecPerClusEx]; /* Cluster size */
if (fs->csize == 0) return FR_NO_FILESYSTEM; /* (Must be 1..32768) */
nclst = ld_dword(fs->win + BPB_NumClusEx); /* Number of clusters */
if (nclst > MAX_EXFAT) return FR_NO_FILESYSTEM; /* (Too many clusters) */
fs->n_fatent = nclst + 2;
/* Boundaries and Limits */
fs->volbase = bsect;
fs->database = bsect + ld_dword(fs->win + BPB_DataOfsEx);
fs->fatbase = bsect + ld_dword(fs->win + BPB_FatOfsEx);
if (maxlba < (QWORD)fs->database + nclst * fs->csize) return FR_NO_FILESYSTEM; /* (Volume size must not be smaller than the size requiered) */
fs->dirbase = ld_dword(fs->win + BPB_RootClusEx);
/* Check if bitmap location is in assumption (at the first cluster) */
if (move_window(fs, clust2sect(fs, fs->dirbase)) != FR_OK) return FR_DISK_ERR;
for (i = 0; i < SS(fs); i += SZDIRE) {
if (fs->win[i] == 0x81 && ld_dword(fs->win + i + 20) == 2) break; /* 81 entry with cluster #2? */
}
if (i == SS(fs)) return FR_NO_FILESYSTEM;
#if !_FS_READONLY
fs->last_clst = fs->free_clst = 0xFFFFFFFF; /* Initialize cluster allocation information */
#endif
fmt = FS_EXFAT; /* FAT sub-type */
} else
#endif /* _FS_EXFAT */
{
if (ld_word(fs->win + BPB_BytsPerSec) != SS(fs)) return FR_NO_FILESYSTEM; /* (BPB_BytsPerSec must be equal to the physical sector size) */
fasize = ld_word(fs->win + BPB_FATSz16); /* Number of sectors per FAT */
if (fasize == 0) fasize = ld_dword(fs->win + BPB_FATSz32);
fs->fsize = fasize;
fs->n_fats = fs->win[BPB_NumFATs]; /* Number of FATs */
if (fs->n_fats != 1 && fs->n_fats != 2) return FR_NO_FILESYSTEM; /* (Must be 1 or 2) */
fasize *= fs->n_fats; /* Number of sectors for FAT area */
fs->csize = fs->win[BPB_SecPerClus]; /* Cluster size */
if (fs->csize == 0 || (fs->csize & (fs->csize - 1))) return FR_NO_FILESYSTEM; /* (Must be power of 2) */
fs->n_rootdir = ld_word(fs->win + BPB_RootEntCnt); /* Number of root directory entries */
if (fs->n_rootdir % (SS(fs) / SZDIRE)) return FR_NO_FILESYSTEM; /* (Must be sector aligned) */
tsect = ld_word(fs->win + BPB_TotSec16); /* Number of sectors on the volume */
if (tsect == 0) tsect = ld_dword(fs->win + BPB_TotSec32);
nrsv = ld_word(fs->win + BPB_RsvdSecCnt); /* Number of reserved sectors */
if (nrsv == 0) return FR_NO_FILESYSTEM; /* (Must not be 0) */
/* Determine the FAT sub type */
sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / SZDIRE); /* RSV + FAT + DIR */
if (tsect < sysect) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
nclst = (tsect - sysect) / fs->csize; /* Number of clusters */
if (nclst == 0) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
fmt = FS_FAT32;
if (nclst <= MAX_FAT16) fmt = FS_FAT16;
if (nclst <= MAX_FAT12) fmt = FS_FAT12;
/* Boundaries and Limits */
fs->n_fatent = nclst + 2; /* Number of FAT entries */
fs->volbase = bsect; /* Volume start sector */
fs->fatbase = bsect + nrsv; /* FAT start sector */
fs->database = bsect + sysect; /* Data start sector */
if (fmt == FS_FAT32) {
if (ld_word(fs->win + BPB_FSVer32) != 0) return FR_NO_FILESYSTEM; /* (Must be FAT32 revision 0.0) */
if (fs->n_rootdir) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */
fs->dirbase = ld_dword(fs->win + BPB_RootClus32); /* Root directory start cluster */
szbfat = fs->n_fatent * 4; /* (Needed FAT size) */
} else {
if (fs->n_rootdir == 0) return FR_NO_FILESYSTEM;/* (BPB_RootEntCnt must not be 0) */
fs->dirbase = fs->fatbase + fasize; /* Root directory start sector */
szbfat = (fmt == FS_FAT16) ? /* (Needed FAT size) */
fs->n_fatent * 2 : fs->n_fatent * 3 / 2 + (fs->n_fatent & 1);
}
if (fs->fsize < (szbfat + (SS(fs) - 1)) / SS(fs)) return FR_NO_FILESYSTEM; /* (BPB_FATSz must not be less than the size needed) */
#if !_FS_READONLY
/* Get FSINFO if available */
fs->last_clst = fs->free_clst = 0xFFFFFFFF; /* Initialize cluster allocation information */
fs->fsi_flag = 0x80;
#if (_FS_NOFSINFO & 3) != 3
if (fmt == FS_FAT32 /* Enable FSINFO only if FAT32 and BPB_FSInfo32 == 1 */
&& ld_word(fs->win + BPB_FSInfo32) == 1
&& move_window(fs, bsect + 1) == FR_OK)
{
fs->fsi_flag = 0;
if (ld_word(fs->win + BS_55AA) == 0xAA55 /* Load FSINFO data if available */
&& ld_dword(fs->win + FSI_LeadSig) == 0x41615252
&& ld_dword(fs->win + FSI_StrucSig) == 0x61417272)
{
#if (_FS_NOFSINFO & 1) == 0
fs->free_clst = ld_dword(fs->win + FSI_Free_Count);
#endif
#if (_FS_NOFSINFO & 2) == 0
fs->last_clst = ld_dword(fs->win + FSI_Nxt_Free);
#endif
}
}
#endif /* (_FS_NOFSINFO & 3) != 3 */
#endif /* !_FS_READONLY */
}
fs->fs_type = fmt; /* FAT sub-type */
fs->id = ++Fsid; /* File system mount ID */
#if _USE_LFN == 1
fs->lfnbuf = LfnBuf; /* Static LFN working buffer */
#if _FS_EXFAT
fs->dirbuf = DirBuf; /* Static directory block scratchpad buuffer */
#endif
#endif
#if _FS_RPATH != 0
fs->cdir = 0; /* Initialize current directory */
#endif
#if _FS_LOCK != 0 /* Clear file lock semaphores */
clear_lock(fs);
#endif
return FR_OK;
}
/*-----------------------------------------------------------------------*/
/* Check if the file/directory object is valid or not */
/*-----------------------------------------------------------------------*/
static
FRESULT validate ( /* Returns FR_OK or FR_INVALID_OBJECT */
_FDID* obj, /* Pointer to the _OBJ, the 1st member in the FIL/DIR object, to check validity */
FATFS** fs /* Pointer to pointer to the owner file system object to return */
)
{
FRESULT res;
if (!obj || !obj->fs || !obj->fs->fs_type || obj->fs->id != obj->id || (disk_status(obj->fs->drv) & STA_NOINIT)) {
*fs = 0;
res = FR_INVALID_OBJECT; /* The object is invalid */
} else {
*fs = obj->fs; /* Owner file sytem object */
ENTER_FF(obj->fs); /* Lock file system */
res = FR_OK; /* Valid object */
}
return res;
}
/*---------------------------------------------------------------------------
Public Functions (FatFs API)
----------------------------------------------------------------------------*/
/*-----------------------------------------------------------------------*/
/* Mount/Unmount a Logical Drive */
/*-----------------------------------------------------------------------*/
FRESULT f_mount (
FATFS* fs, /* Pointer to the file system object (NULL:unmount)*/
const TCHAR* path, /* Logical drive number to be mounted/unmounted */
BYTE opt /* Mode option 0:Do not mount (delayed mount), 1:Mount immediately */
)
{
FATFS *cfs;
int vol;
FRESULT res;
const TCHAR *rp = path;
/* Get logical drive number */
vol = get_ldnumber(&rp);
if (vol < 0) return FR_INVALID_DRIVE;
cfs = FatFs[vol]; /* Pointer to fs object */
if (cfs) {
#if _FS_LOCK != 0
clear_lock(cfs);
#endif
#if _FS_REENTRANT /* Discard sync object of the current volume */
if (!ff_del_syncobj(cfs->sobj)) return FR_INT_ERR;
#endif
cfs->fs_type = 0; /* Clear old fs object */
}
if (fs) {
fs->fs_type = 0; /* Clear new fs object */
#if _FS_REENTRANT /* Create sync object for the new volume */
if (!ff_cre_syncobj((BYTE)vol, &fs->sobj)) return FR_INT_ERR;
#endif
}
FatFs[vol] = fs; /* Register new fs object */
if (!fs || opt != 1) return FR_OK; /* Do not mount now, it will be mounted later */
res = find_volume(&path, &fs, 0); /* Force mounted the volume */
LEAVE_FF(fs, res);
}
/*-----------------------------------------------------------------------*/
/* Open or Create a File */
/*-----------------------------------------------------------------------*/
FRESULT f_open (
FIL* fp, /* Pointer to the blank file object */
const TCHAR* path, /* Pointer to the file name */
BYTE mode /* Access mode and file open mode flags */
)
{
FRESULT res;
DIR dj;
FATFS *fs;
#if !_FS_READONLY
DWORD dw, cl, bcs, clst, sc;
FSIZE_t ofs;
#endif
DEF_NAMBUF
if (!fp) return FR_INVALID_OBJECT;
/* Get logical drive */
mode &= _FS_READONLY ? FA_READ : FA_READ | FA_WRITE | FA_CREATE_ALWAYS | FA_CREATE_NEW | FA_OPEN_ALWAYS | FA_OPEN_APPEND | FA_SEEKEND;
res = find_volume(&path, &fs, mode);
if (res == FR_OK) {
dj.obj.fs = fs;
INIT_NAMBUF(fs);
res = follow_path(&dj, path); /* Follow the file path */
#if !_FS_READONLY /* R/W configuration */
if (res == FR_OK) {
if (dj.fn[NSFLAG] & NS_NONAME) { /* Origin directory itself? */
res = FR_INVALID_NAME;
}
#if _FS_LOCK != 0
else {
res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
}
#endif
}
/* Create or Open a file */
if (mode & (FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW)) {
if (res != FR_OK) { /* No file, create new */
if (res == FR_NO_FILE) { /* There is no file to open, create a new entry */
#if _FS_LOCK != 0
res = enq_lock() ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES;
#else
res = dir_register(&dj);
#endif
}
mode |= FA_CREATE_ALWAYS; /* File is created */
}
else { /* Any object is already existing */
if (dj.obj.attr & (AM_RDO | AM_DIR)) { /* Cannot overwrite it (R/O or DIR) */
res = FR_DENIED;
} else {
if (mode & FA_CREATE_NEW) res = FR_EXIST; /* Cannot create as new file */
}
}
if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) { /* Truncate it if overwrite mode */
dw = GET_FATTIME();
#if _FS_EXFAT
if (fs->fs_type == FS_EXFAT) {
/* Get current allocation info */
fp->obj.fs = fs;
fp->obj.sclust = ld_dword(fs->dirbuf + XDIR_FstClus);
fp->obj.objsize = ld_qword(fs->dirbuf + XDIR_FileSize);
fp->obj.stat = fs->dirbuf[XDIR_GenFlags] & 2;
fp->obj.n_frag = 0;
/* Initialize directory entry block */
st_dword(fs->dirbuf + XDIR_CrtTime, dw); /* Set created time */
fs->dirbuf[XDIR_CrtTime10] = 0;
st_dword(fs->dirbuf + XDIR_ModTime, dw); /* Set modified time */
fs->dirbuf[XDIR_ModTime10] = 0;
fs->dirbuf[XDIR_Attr] = AM_ARC; /* Reset attribute */
st_dword(fs->dirbuf + XDIR_FstClus, 0); /* Reset file allocation info */
st_qword(fs->dirbuf + XDIR_FileSize, 0);
st_qword(fs->dirbuf + XDIR_ValidFileSize, 0);
fs->dirbuf[XDIR_GenFlags] = 1;
res = store_xdir(&dj);
if (res == FR_OK && fp->obj.sclust) { /* Remove the cluster chain if exist */
res = remove_chain(&fp->obj, fp->obj.sclust, 0);
fs->last_clst = fp->obj.sclust - 1; /* Reuse the cluster hole */
}
} else
#endif
{
/* Clean directory info */
st_dword(dj.dir + DIR_CrtTime, dw); /* Set created time */
st_dword(dj.dir + DIR_ModTime, dw); /* Set modified time */
dj.dir[DIR_Attr] = AM_ARC; /* Reset attribute */
cl = ld_clust(fs, dj.dir); /* Get cluster chain */
st_clust(fs, dj.dir, 0); /* Reset file allocation info */
st_dword(dj.dir + DIR_FileSize, 0);
fs->wflag = 1;
if (cl) { /* Remove the cluster chain if exist */
dw = fs->winsect;
res = remove_chain(&dj.obj, cl, 0);
if (res == FR_OK) {
res = move_window(fs, dw);
fs->last_clst = cl - 1; /* Reuse the cluster hole */
}
}
}
}
}
else { /* Open an existing file */
if (res == FR_OK) { /* Following succeeded */
if (dj.obj.attr & AM_DIR) { /* It is a directory */
res = FR_NO_FILE;
} else {
if ((mode & FA_WRITE) && (dj.obj.attr & AM_RDO)) { /* R/O violation */
res = FR_DENIED;
}
}
}
}
if (res == FR_OK) {
if (mode & FA_CREATE_ALWAYS) /* Set file change flag if created or overwritten */
mode |= FA_MODIFIED;
fp->dir_sect = fs->winsect; /* Pointer to the directory entry */
fp->dir_ptr = dj.dir;
#if _FS_LOCK != 0
fp->obj.lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
if (!fp->obj.lockid) res = FR_INT_ERR;
#endif
}
#else /* R/O configuration */
if (res == FR_OK) {
if (dj.fn[NSFLAG] & NS_NONAME) { /* Origin directory itself? */
res = FR_INVALID_NAME;
} else {
if (dj.obj.attr & AM_DIR) { /* It is a directory */
res = FR_NO_FILE;
}
}
}
#endif
if (res == FR_OK) {
#if _FS_EXFAT
if (fs->fs_type == FS_EXFAT) {
fp->obj.c_scl = dj.obj.sclust; /* Get containing directory info */
fp->obj.c_size = ((DWORD)dj.obj.objsize & 0xFFFFFF00) | dj.obj.stat;
fp->obj.c_ofs = dj.blk_ofs;
fp->obj.sclust = ld_dword(fs->dirbuf + XDIR_FstClus); /* Get object allocation info */
fp->obj.objsize = ld_qword(fs->dirbuf + XDIR_FileSize);
fp->obj.stat = fs->dirbuf[XDIR_GenFlags] & 2;
} else
#endif
{
fp->obj.sclust = ld_clust(fs, dj.dir); /* Get object allocation info */
fp->obj.objsize = ld_dword(dj.dir + DIR_FileSize);
}
#if _USE_FASTSEEK
fp->cltbl = 0; /* Disable fast seek mode */
#endif
fp->obj.fs = fs; /* Validate the file object */
fp->obj.id = fs->id;
fp->flag = mode; /* Set file access mode */
fp->err = 0; /* Clear error flag */
fp->sect = 0; /* Invalidate current data sector */
fp->fptr = 0; /* Set file pointer top of the file */
#if !_FS_READONLY
#if !_FS_TINY
mem_set(fp->buf, 0, _MAX_SS); /* Clear sector buffer */
#endif
if ((mode & FA_SEEKEND) && fp->obj.objsize > 0) { /* Seek to end of file if FA_OPEN_APPEND is specified */
fp->fptr = fp->obj.objsize; /* Offset to seek */
bcs = (DWORD)fs->csize * SS(fs); /* Cluster size in byte */
clst = fp->obj.sclust; /* Follow the cluster chain */
for (ofs = fp->obj.objsize; res == FR_OK && ofs > bcs; ofs -= bcs) {
clst = get_fat(&fp->obj, clst);
if (clst <= 1) res = FR_INT_ERR;
if (clst == 0xFFFFFFFF) res = FR_DISK_ERR;
}
fp->clust = clst;
if (res == FR_OK && ofs % SS(fs)) { /* Fill sector buffer if not on the sector boundary */
if ((sc = clust2sect(fs, clst)) == 0) {
res = FR_INT_ERR;
} else {
fp->sect = sc + (DWORD)(ofs / SS(fs));
#if !_FS_TINY
if (disk_read(fs->drv, fp->buf, fp->sect, 1) != RES_OK) res = FR_DISK_ERR;
#endif
}
}
}
#endif
}
FREE_NAMBUF();
}
if (res != FR_OK) fp->obj.fs = 0; /* Invalidate file object on error */
LEAVE_FF(fs, res);
}
/*-----------------------------------------------------------------------*/
/* Read File */
/*-----------------------------------------------------------------------*/
FRESULT f_read (
FIL* fp, /* Pointer to the file object */
void* buff, /* Pointer to data buffer */
UINT btr, /* Number of bytes to read */
UINT* br /* Pointer to number of bytes read */
)
{
FRESULT res;
FATFS *fs;
DWORD clst, sect;
FSIZE_t remain;
UINT rcnt, cc, csect;
BYTE *rbuff = (BYTE*)buff;
*br = 0; /* Clear read byte counter */
res = validate(&fp->obj, &fs); /* Check validity of the file object */
if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) LEAVE_FF(fs, res); /* Check validity */
if (!(fp->flag & FA_READ)) LEAVE_FF(fs, FR_DENIED); /* Check access mode */
remain = fp->obj.objsize - fp->fptr;
if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
for ( ; btr; /* Repeat until all data read */
rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) {
if (fp->fptr % SS(fs) == 0) { /* On the sector boundary? */
csect = (UINT)(fp->fptr / SS(fs) & (fs->csize - 1)); /* Sector offset in the cluster */
if (csect == 0) { /* On the cluster boundary? */
if (fp->fptr == 0) { /* On the top of the file? */
clst = fp->obj.sclust; /* Follow cluster chain from the origin */
} else { /* Middle or end of the file */
#if _USE_FASTSEEK
if (fp->cltbl) {
clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
} else
#endif
{
clst = get_fat(&fp->obj, fp->clust); /* Follow cluster chain on the FAT */
}
}
if (clst < 2) ABORT(fs, FR_INT_ERR);
if (clst == 0xFFFFFFFF) ABORT(fs, FR_DISK_ERR);
fp->clust = clst; /* Update current cluster */
}
sect = clust2sect(fs, fp->clust); /* Get current sector */
if (!sect) ABORT(fs, FR_INT_ERR);
sect += csect;
cc = btr / SS(fs); /* When remaining bytes >= sector size, */
if (cc) { /* Read maximum contiguous sectors directly */
if (csect + cc > fs->csize) { /* Clip at cluster boundary */
cc = fs->csize - csect;
}
if (disk_read(fs->drv, rbuff, sect, cc) != RES_OK) ABORT(fs, FR_DISK_ERR);
#if !_FS_READONLY && _FS_MINIMIZE <= 2 /* Replace one of the read sectors with cached data if it contains a dirty sector */
#if _FS_TINY
if (fs->wflag && fs->winsect - sect < cc) {
mem_cpy(rbuff + ((fs->winsect - sect) * SS(fs)), fs->win, SS(fs));
}
#else
if ((fp->flag & FA_DIRTY) && fp->sect - sect < cc) {
mem_cpy(rbuff + ((fp->sect - sect) * SS(fs)), fp->buf, SS(fs));
}
#endif
#endif
rcnt = SS(fs) * cc; /* Number of bytes transferred */
continue;
}
#if !_FS_TINY
if (fp->sect != sect) { /* Load data sector if not in cache */
#if !_FS_READONLY
if (fp->flag & FA_DIRTY) { /* Write-back dirty sector cache */
if (disk_write(fs->drv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR);
fp->flag &= (BYTE)~FA_DIRTY;
}
#endif
if (disk_read(fs->drv, fp->buf, sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); /* Fill sector cache */
}
#endif
fp->sect = sect;
}
rcnt = SS(fs) - (UINT)fp->fptr % SS(fs); /* Number of bytes left in the sector */
if (rcnt > btr) rcnt = btr; /* Clip it by btr if needed */
#if _FS_TINY
if (move_window(fs, fp->sect) != FR_OK) ABORT(fs, FR_DISK_ERR); /* Move sector window */
mem_cpy(rbuff, fs->win + fp->fptr % SS(fs), rcnt); /* Extract partial sector */
#else
mem_cpy(rbuff, fp->buf + fp->fptr % SS(fs), rcnt); /* Extract partial sector */
#endif
}
LEAVE_FF(fs, FR_OK);
}
#if !_FS_READONLY
/*-----------------------------------------------------------------------*/
/* Write File */
/*-----------------------------------------------------------------------*/
FRESULT f_write (
FIL* fp, /* Pointer to the file object */
const void* buff, /* Pointer to the data to be written */
UINT btw, /* Number of bytes to write */
UINT* bw /* Pointer to number of bytes written */
)
{
FRESULT res;
FATFS *fs;
DWORD clst, sect;
UINT wcnt, cc, csect;
const BYTE *wbuff = (const BYTE*)buff;
*bw = 0; /* Clear write byte counter */
res = validate(&fp->obj, &fs); /* Check validity of the file object */
if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) LEAVE_FF(fs, res); /* Check validity */
if (!(fp->flag & FA_WRITE)) LEAVE_FF(fs, FR_DENIED); /* Check access mode */
/* Check fptr wrap-around (file size cannot reach 4GiB on FATxx) */
if ((!_FS_EXFAT || fs->fs_type != FS_EXFAT) && (DWORD)(fp->fptr + btw) < (DWORD)fp->fptr) {
btw = (UINT)(0xFFFFFFFF - (DWORD)fp->fptr);
}
for ( ; btw; /* Repeat until all data written */
wbuff += wcnt, fp->fptr += wcnt, fp->obj.objsize = (fp->fptr > fp->obj.objsize) ? fp->fptr : fp->obj.objsize, *bw += wcnt, btw -= wcnt) {
if (fp->fptr % SS(fs) == 0) { /* On the sector boundary? */
csect = (UINT)(fp->fptr / SS(fs)) & (fs->csize - 1); /* Sector offset in the cluster */
if (csect == 0) { /* On the cluster boundary? */
if (fp->fptr == 0) { /* On the top of the file? */
clst = fp->obj.sclust; /* Follow from the origin */
if (clst == 0) { /* If no cluster is allocated, */
clst = create_chain(&fp->obj, 0); /* create a new cluster chain */
}
} else { /* On the middle or end of the file */
#if _USE_FASTSEEK
if (fp->cltbl) {
clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
} else
#endif
{
clst = create_chain(&fp->obj, fp->clust); /* Follow or stretch cluster chain on the FAT */
}
}
if (clst == 0) break; /* Could not allocate a new cluster (disk full) */
if (clst == 1) ABORT(fs, FR_INT_ERR);
if (clst == 0xFFFFFFFF) ABORT(fs, FR_DISK_ERR);
fp->clust = clst; /* Update current cluster */
if (fp->obj.sclust == 0) fp->obj.sclust = clst; /* Set start cluster if the first write */
}
#if _FS_TINY
if (fs->winsect == fp->sect && sync_window(fs) != FR_OK) ABORT(fs, FR_DISK_ERR); /* Write-back sector cache */
#else
if (fp->flag & FA_DIRTY) { /* Write-back sector cache */
if (disk_write(fs->drv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR);
fp->flag &= (BYTE)~FA_DIRTY;
}
#endif
sect = clust2sect(fs, fp->clust); /* Get current sector */
if (!sect) ABORT(fs, FR_INT_ERR);
sect += csect;
cc = btw / SS(fs); /* When remaining bytes >= sector size, */
if (cc) { /* Write maximum contiguous sectors directly */
if (csect + cc > fs->csize) { /* Clip at cluster boundary */
cc = fs->csize - csect;
}
if (disk_write(fs->drv, wbuff, sect, cc) != RES_OK) ABORT(fs, FR_DISK_ERR);
#if _FS_MINIMIZE <= 2
#if _FS_TINY
if (fs->winsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
mem_cpy(fs->win, wbuff + ((fs->winsect - sect) * SS(fs)), SS(fs));
fs->wflag = 0;
}
#else
if (fp->sect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
mem_cpy(fp->buf, wbuff + ((fp->sect - sect) * SS(fs)), SS(fs));
fp->flag &= (BYTE)~FA_DIRTY;
}
#endif
#endif
wcnt = SS(fs) * cc; /* Number of bytes transferred */
continue;
}
#if _FS_TINY
if (fp->fptr >= fp->obj.objsize) { /* Avoid silly cache filling on the growing edge */
if (sync_window(fs) != FR_OK) ABORT(fs, FR_DISK_ERR);
fs->winsect = sect;
}
#else
if (fp->sect != sect && /* Fill sector cache with file data */
fp->fptr < fp->obj.objsize &&
disk_read(fs->drv, fp->buf, sect, 1) != RES_OK) {
ABORT(fs, FR_DISK_ERR);
}
#endif
fp->sect = sect;
}
wcnt = SS(fs) - (UINT)fp->fptr % SS(fs); /* Number of bytes left in the sector */
if (wcnt > btw) wcnt = btw; /* Clip it by btw if needed */
#if _FS_TINY
if (move_window(fs, fp->sect) != FR_OK) ABORT(fs, FR_DISK_ERR); /* Move sector window */
mem_cpy(fs->win + fp->fptr % SS(fs), wbuff, wcnt); /* Fit data to the sector */
fs->wflag = 1;
#else
mem_cpy(fp->buf + fp->fptr % SS(fs), wbuff, wcnt); /* Fit data to the sector */
fp->flag |= FA_DIRTY;
#endif
}
fp->flag |= FA_MODIFIED; /* Set file change flag */
LEAVE_FF(fs, FR_OK);
}
/*-----------------------------------------------------------------------*/
/* Synchronize the File */
/*-----------------------------------------------------------------------*/
FRESULT f_sync (
FIL* fp /* Pointer to the file object */
)
{
FRESULT res;
FATFS *fs;
DWORD tm;
BYTE *dir;
#if _FS_EXFAT
DIR dj;
DEF_NAMBUF
#endif
res = validate(&fp->obj, &fs); /* Check validity of the file object */
if (res == FR_OK) {
if (fp->flag & FA_MODIFIED) { /* Is there any change to the file? */
#if !_FS_TINY
if (fp->flag & FA_DIRTY) { /* Write-back cached data if needed */
if (disk_write(fs->drv, fp->buf, fp->sect, 1) != RES_OK) LEAVE_FF(fs, FR_DISK_ERR);
fp->flag &= (BYTE)~FA_DIRTY;
}
#endif
/* Update the directory entry */
tm = GET_FATTIME(); /* Modified time */
#if _FS_EXFAT
if (fs->fs_type == FS_EXFAT) {
res = fill_first_frag(&fp->obj); /* Fill first fragment on the FAT if needed */
if (res == FR_OK) {
res = fill_last_frag(&fp->obj, fp->clust, 0xFFFFFFFF); /* Fill last fragment on the FAT if needed */
}
if (res == FR_OK) {
INIT_NAMBUF(fs);
res = load_obj_dir(&dj, &fp->obj); /* Load directory entry block */
if (res == FR_OK) {
fs->dirbuf[XDIR_Attr] |= AM_ARC; /* Set archive bit */
fs->dirbuf[XDIR_GenFlags] = fp->obj.stat | 1; /* Update file allocation info */
st_dword(fs->dirbuf + XDIR_FstClus, fp->obj.sclust);
st_qword(fs->dirbuf + XDIR_FileSize, fp->obj.objsize);
st_qword(fs->dirbuf + XDIR_ValidFileSize, fp->obj.objsize);
st_dword(fs->dirbuf + XDIR_ModTime, tm); /* Update modified time */
fs->dirbuf[XDIR_ModTime10] = 0;
st_dword(fs->dirbuf + XDIR_AccTime, 0);
res = store_xdir(&dj); /* Restore it to the directory */
if (res == FR_OK) {
res = sync_fs(fs);
fp->flag &= (BYTE)~FA_MODIFIED;
}
}
FREE_NAMBUF();
}
} else
#endif
{
res = move_window(fs, fp->dir_sect);
if (res == FR_OK) {
dir = fp->dir_ptr;
dir[DIR_Attr] |= AM_ARC; /* Set archive bit */
st_clust(fp->obj.fs, dir, fp->obj.sclust); /* Update file allocation info */
st_dword(dir + DIR_FileSize, (DWORD)fp->obj.objsize); /* Update file size */
st_dword(dir + DIR_ModTime, tm); /* Update modified time */
st_word(dir + DIR_LstAccDate, 0);
fs->wflag = 1;
res = sync_fs(fs); /* Restore it to the directory */
fp->flag &= (BYTE)~FA_MODIFIED;
}
}
}
}
LEAVE_FF(fs, res);
}
#endif /* !_FS_READONLY */
/*-----------------------------------------------------------------------*/
/* Close File */
/*-----------------------------------------------------------------------*/
FRESULT f_close (
FIL* fp /* Pointer to the file object to be closed */
)
{
FRESULT res;
FATFS *fs;
#if !_FS_READONLY
res = f_sync(fp); /* Flush cached data */
if (res == FR_OK)
#endif
{
res = validate(&fp->obj, &fs); /* Lock volume */
if (res == FR_OK) {
#if _FS_LOCK != 0
res = dec_lock(fp->obj.lockid); /* Decrement file open counter */
if (res == FR_OK)
#endif
{
fp->obj.fs = 0; /* Invalidate file object */
}
#if _FS_REENTRANT
unlock_fs(fs, FR_OK); /* Unlock volume */
#endif
}
}
return res;
}
#if _FS_RPATH >= 1
/*-----------------------------------------------------------------------*/
/* Change Current Directory or Current Drive, Get Current Directory */
/*-----------------------------------------------------------------------*/
#if _VOLUMES >= 2
FRESULT f_chdrive (
const TCHAR* path /* Drive number */
)
{
int vol;
/* Get logical drive number */
vol = get_ldnumber(&path);
if (vol < 0) return FR_INVALID_DRIVE;
CurrVol = (BYTE)vol; /* Set it as current volume */
return FR_OK;
}
#endif
FRESULT f_chdir (
const TCHAR* path /* Pointer to the directory path */
)
{
FRESULT res;
DIR dj;
FATFS *fs;
DEF_NAMBUF
/* Get logical drive */
res = find_volume(&path, &fs, 0);
if (res == FR_OK) {
dj.obj.fs = fs;
INIT_NAMBUF(fs);
res = follow_path(&dj, path); /* Follow the path */
if (res == FR_OK) { /* Follow completed */
if (dj.fn[NSFLAG] & NS_NONAME) {
fs->cdir = dj.obj.sclust; /* It is the start directory itself */
#if _FS_EXFAT
if (fs->fs_type == FS_EXFAT) {
fs->cdc_scl = dj.obj.c_scl;
fs->cdc_size = dj.obj.c_size;
fs->cdc_ofs = dj.obj.c_ofs;
}
#endif
} else {
if (dj.obj.attr & AM_DIR) { /* It is a sub-directory */
#if _FS_EXFAT
if (fs->fs_type == FS_EXFAT) {
fs->cdir = ld_dword(fs->dirbuf + XDIR_FstClus); /* Sub-directory cluster */
fs->cdc_scl = dj.obj.sclust; /* Save containing directory information */
fs->cdc_size = ((DWORD)dj.obj.objsize & 0xFFFFFF00) | dj.obj.stat;
fs->cdc_ofs = dj.blk_ofs;
} else
#endif
{
fs->cdir = ld_clust(fs, dj.dir); /* Sub-directory cluster */
}
} else {
res = FR_NO_PATH; /* Reached but a file */
}
}
}
FREE_NAMBUF();
if (res == FR_NO_FILE) res = FR_NO_PATH;
}
LEAVE_FF(fs, res);
}
#if _FS_RPATH >= 2
FRESULT f_getcwd (
TCHAR* buff, /* Pointer to the directory path */
UINT len /* Size of path */
)
{
FRESULT res;
DIR dj;
FATFS *fs;
UINT i, n;
DWORD ccl;
TCHAR *tp;
FILINFO fno;
DEF_NAMBUF
*buff = 0;
/* Get logical drive */
res = find_volume((const TCHAR**)&buff, &fs, 0); /* Get current volume */
if (res == FR_OK) {
dj.obj.fs = fs;
INIT_NAMBUF(fs);
i = len; /* Bottom of buffer (directory stack base) */
if (!_FS_EXFAT || fs->fs_type != FS_EXFAT) { /* (Cannot do getcwd on exFAT and returns root path) */
dj.obj.sclust = fs->cdir; /* Start to follow upper directory from current directory */
while ((ccl = dj.obj.sclust) != 0) { /* Repeat while current directory is a sub-directory */
res = dir_sdi(&dj, 1 * SZDIRE); /* Get parent directory */
if (res != FR_OK) break;
res = move_window(fs, dj.sect);
if (res != FR_OK) break;
dj.obj.sclust = ld_clust(fs, dj.dir); /* Goto parent directory */
res = dir_sdi(&dj, 0);
if (res != FR_OK) break;
do { /* Find the entry links to the child directory */
res = dir_read(&dj, 0);
if (res != FR_OK) break;
if (ccl == ld_clust(fs, dj.dir)) break; /* Found the entry */
res = dir_next(&dj, 0);
} while (res == FR_OK);
if (res == FR_NO_FILE) res = FR_INT_ERR;/* It cannot be 'not found'. */
if (res != FR_OK) break;
get_fileinfo(&dj, &fno); /* Get the directory name and push it to the buffer */
for (n = 0; fno.fname[n]; n++) ;
if (i < n + 3) {
res = FR_NOT_ENOUGH_CORE; break;
}
while (n) buff[--i] = fno.fname[--n];
buff[--i] = '/';
}
}
tp = buff;
if (res == FR_OK) {
#if _VOLUMES >= 2
*tp++ = '0' + CurrVol; /* Put drive number */
*tp++ = ':';
#endif
if (i == len) { /* Root-directory */
*tp++ = '/';
} else { /* Sub-directroy */
do /* Add stacked path str */
*tp++ = buff[i++];
while (i < len);
}
}
*tp = 0;
FREE_NAMBUF();
}
LEAVE_FF(fs, res);
}
#endif /* _FS_RPATH >= 2 */
#endif /* _FS_RPATH >= 1 */
#if _FS_MINIMIZE <= 2
/*-----------------------------------------------------------------------*/
/* Seek File R/W Pointer */
/*-----------------------------------------------------------------------*/
FRESULT f_lseek (
FIL* fp, /* Pointer to the file object */
FSIZE_t ofs /* File pointer from top of file */
)
{
FRESULT res;
FATFS *fs;
DWORD clst, bcs, nsect;
FSIZE_t ifptr;
#if _USE_FASTSEEK
DWORD cl, pcl, ncl, tcl, dsc, tlen, ulen, *tbl;
#endif
res = validate(&fp->obj, &fs); /* Check validity of the file object */
if (res == FR_OK) res = (FRESULT)fp->err;
#if _FS_EXFAT && !_FS_READONLY
if (res == FR_OK && fs->fs_type == FS_EXFAT) {
res = fill_last_frag(&fp->obj, fp->clust, 0xFFFFFFFF); /* Fill last fragment on the FAT if needed */
}
#endif
if (res != FR_OK) LEAVE_FF(fs, res);
#if _USE_FASTSEEK
if (fp->cltbl) { /* Fast seek */
if (ofs == CREATE_LINKMAP) { /* Create CLMT */
tbl = fp->cltbl;
tlen = *tbl++; ulen = 2; /* Given table size and required table size */
cl = fp->obj.sclust; /* Origin of the chain */
if (cl) {
do {
/* Get a fragment */
tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */
do {
pcl = cl; ncl++;
cl = get_fat(&fp->obj, cl);
if (cl <= 1) ABORT(fs, FR_INT_ERR);
if (cl == 0xFFFFFFFF) ABORT(fs, FR_DISK_ERR);
} while (cl == pcl + 1);
if (ulen <= tlen) { /* Store the length and top of the fragment */
*tbl++ = ncl; *tbl++ = tcl;
}
} while (cl < fs->n_fatent); /* Repeat until end of chain */
}
*fp->cltbl = ulen; /* Number of items used */
if (ulen <= tlen) {
*tbl = 0; /* Terminate table */
} else {
res = FR_NOT_ENOUGH_CORE; /* Given table size is smaller than required */
}
} else { /* Fast seek */
if (ofs > fp->obj.objsize) ofs = fp->obj.objsize; /* Clip offset at the file size */
fp->fptr = ofs; /* Set file pointer */
if (ofs) {
fp->clust = clmt_clust(fp, ofs - 1);
dsc = clust2sect(fs, fp->clust);
if (!dsc) ABORT(fs, FR_INT_ERR);
dsc += (DWORD)((ofs - 1) / SS(fs)) & (fs->csize - 1);
if (fp->fptr
gitextract_lpxnh2on/
├── .gitattributes
├── LICENSE
├── boxart/
│ ├── open-ed_prod.eps
│ └── open-ed_sticker_prod.eps
├── fabrication/
│ ├── bom_rev.b.ods
│ └── open-ed.md
├── menu/
│ ├── Makefile
│ ├── cfg.h
│ ├── ctr0.s
│ ├── disk.c
│ ├── disk.h
│ ├── everdrive.c
│ ├── everdrive.h
│ ├── ff/
│ │ ├── 00history.txt
│ │ ├── 00readme.txt
│ │ ├── ccsbcs.c
│ │ ├── diskio.c
│ │ ├── diskio.h
│ │ ├── ff.c
│ │ ├── ff.h
│ │ ├── ffconf.h
│ │ ├── integer.h
│ │ └── syscall.c
│ ├── flash.c
│ ├── flash.h
│ ├── fmanager.c
│ ├── fmanager.h
│ ├── fs.c
│ ├── fs.h
│ ├── main.c
│ ├── main.h
│ ├── open-ed.md
│ ├── rom.ld
│ ├── spi.s
│ ├── std.c
│ ├── std.h
│ ├── sys.c
│ ├── sys.h
│ └── usb.bat
├── open-ed-mapper.txt
├── open-ed.v
├── pcb_src/
│ ├── fp-info-cache
│ ├── open-ed-Rev.B.kicad_pcb
│ ├── open-ed-Rev.B.kicad_prl
│ └── open-ed-Rev.B.kicad_pro
├── readme.md
└── schematic/
├── open-ed_rev.b.kicad_sch
└── sega_bus.kicad_sch
SYMBOL INDEX (236 symbols across 17 files)
FILE: menu/disk.c
function u8 (line 37) | u8 diskCmd(u8 cmd, u32 arg) {
function u8 (line 65) | u8 diskInitSPI() {
function u8 (line 78) | u8 _diskInitSPI() {
function u8 (line 169) | u8 diskInit() {
function u8 (line 179) | u8 diskOpenRead(u32 saddr) {
function u8 (line 196) | u8 _diskRead(u32 sd_addr, void *dst, u16 slen) {
function u8 (line 208) | u8 diskRead(u32 sd_addr, void *dst, u16 slen) {
function u8 (line 218) | u8 diskCloseRW() {
function u8 (line 236) | u8 diskStop() {
FILE: menu/everdrive.c
function u8 (line 33) | u8 edInit() {
function edSetBank (line 51) | void edSetBank(u16 bank) {
function edSetLed (line 65) | void edSetLed(u8 on) {
function edSetSRAM (line 76) | void edSetSRAM(u8 on) {
function edLoadInfo (line 88) | void edLoadInfo() {
function u8 (line 102) | u8 spi_rw(u8 val) {
function u8 (line 119) | u8 spi_r() {
function spi_w (line 136) | void spi_w(u8 val) {
function spi_select (line 147) | void spi_select(u8 target) {
function u8 (line 160) | u8 spi_to_ram(void *dst, u8 slen) {
function u8 (line 185) | u8 edLoadROM(u8 *path) {
function edStartROM (line 232) | void edStartROM(u8 stop_disk) {
function u8 (line 251) | u8 edIsUpdateRom() {
function edUpdateMenu (line 265) | void edUpdateMenu() {
function edReboot (line 302) | void edReboot() {
FILE: menu/everdrive.h
type DeviceInfo (line 11) | typedef struct {
FILE: menu/ff/ccsbcs.c
function WCHAR (line 275) | WCHAR ff_convert ( /* Converted character, Returns zero on error */
function WCHAR (line 303) | WCHAR ff_wtoupper ( /* Returns upper converted character */
FILE: menu/ff/diskio.c
function DSTATUS (line 29) | DSTATUS disk_status(
function DSTATUS (line 41) | DSTATUS disk_initialize(
function DRESULT (line 59) | DRESULT disk_read(
function DRESULT (line 79) | DRESULT disk_write(
function DRESULT (line 100) | DRESULT disk_ioctl(
FILE: menu/ff/diskio.h
type BYTE (line 16) | typedef BYTE DSTATUS;
type DRESULT (line 19) | typedef enum {
FILE: menu/ff/ff.c
type FILESEM (line 508) | typedef struct {
function DWORD (line 613) | static
function QWORD (line 626) | static
function st_word (line 644) | static
function st_dword (line 651) | static
function st_qword (line 661) | static
function mem_cpy (line 683) | static
function mem_set (line 696) | static
function mem_cmp (line 706) | static
function chk_chr (line 719) | static
function lock_fs (line 732) | static
function unlock_fs (line 741) | static
function FRESULT (line 761) | static
function enq_lock (line 788) | static
function UINT (line 798) | static
function FRESULT (line 830) | static
function clear_lock (line 853) | static
function FRESULT (line 873) | static
function FRESULT (line 902) | static
function FRESULT (line 934) | static
function DWORD (line 973) | static
function DWORD (line 991) | static
function FRESULT (line 1072) | static
function DWORD (line 1137) | static
function FRESULT (line 1178) | static
function FRESULT (line 1214) | static
function FRESULT (line 1237) | static
function FRESULT (line 1262) | static
function DWORD (line 1342) | static
function DWORD (line 1431) | static
function FRESULT (line 1461) | static
function FRESULT (line 1510) | static
function DWORD (line 1623) | static
function st_clust (line 1641) | static
function cmp_lfn (line 1668) | static
function pick_lfn (line 1704) | static
function put_lfn (line 1742) | static
function gen_numname (line 1780) | static
function BYTE (line 1839) | static
function WORD (line 1862) | static
function WORD (line 1884) | static
function DWORD (line 1903) | static
function get_xdir_info (line 1920) | static
function FRESULT (line 1969) | static
function FRESULT (line 2019) | static
function FRESULT (line 2047) | static
function create_xdir (line 2080) | static
function FRESULT (line 2122) | static
function FRESULT (line 2201) | static
function FRESULT (line 2283) | static
function FRESULT (line 2387) | static
function get_fileinfo (line 2435) | static
function WCHAR (line 2537) | static
function pattern_matching (line 2561) | static
function FRESULT (line 2609) | static
function FRESULT (line 2804) | static
function get_ldnumber (line 2895) | static
function BYTE (line 2956) | static
function FRESULT (line 2984) | static
function FRESULT (line 3207) | static
function FRESULT (line 3241) | FRESULT f_mount (
function FRESULT (line 3289) | FRESULT f_open (
function FRESULT (line 3492) | FRESULT f_read (
function FRESULT (line 3592) | FRESULT f_write (
function FRESULT (line 3832) | FRESULT f_chdrive (
function FRESULT (line 3850) | FRESULT f_chdir (
function FRESULT (line 3902) | FRESULT f_getcwd (
function FRESULT (line 3982) | FRESULT f_lseek (
function FRESULT (line 4143) | FRESULT f_opendir (
function FRESULT (line 4213) | FRESULT f_closedir (
function FRESULT (line 4246) | FRESULT f_readdir (
function FRESULT (line 4282) | FRESULT f_findnext (
function FRESULT (line 4307) | FRESULT f_findfirst (
function FRESULT (line 4334) | FRESULT f_stat (
function FRESULT (line 4369) | FRESULT f_getfree (
function FRESULT (line 4456) | FRESULT f_truncate (
function FRESULT (line 4506) | FRESULT f_unlink (
function FRESULT (line 4601) | FRESULT f_mkdir (
function FRESULT (line 4698) | FRESULT f_rename (
function FRESULT (line 4806) | FRESULT f_chmod (
function FRESULT (line 4853) | FRESULT f_utime (
function FRESULT (line 4900) | FRESULT f_getlabel (
function FRESULT (line 4994) | FRESULT f_setlabel (
function FRESULT (line 5121) | FRESULT f_expand (
function FRESULT (line 5211) | FRESULT f_forward (
function FRESULT (line 5282) | FRESULT f_mkfs (
function FRESULT (line 5739) | FRESULT f_fdisk (
function TCHAR (line 5811) | TCHAR* f_gets (
type putbuff (line 5890) | typedef struct {
function putc_bfd (line 5897) | static
function putc_flush (line 5953) | static
function putc_init (line 5967) | static
function f_putc (line 5979) | int f_putc (
function f_puts (line 5999) | int f_puts (
function f_printf (line 6019) | int f_printf (
FILE: menu/ff/ff.h
type PARTITION (line 40) | typedef struct {
type WCHAR (line 56) | typedef WCHAR TCHAR;
type TCHAR (line 62) | typedef char TCHAR;
type QWORD (line 76) | typedef QWORD FSIZE_t;
type DWORD (line 78) | typedef DWORD FSIZE_t;
type FATFS (line 85) | typedef struct {
type _FDID (line 132) | typedef struct {
type FIL (line 155) | typedef struct {
type DIR (line 178) | typedef struct {
type FILINFO (line 197) | typedef struct {
type FRESULT (line 214) | typedef enum {
FILE: menu/ff/integer.h
type QWORD (line 12) | typedef unsigned __int64 QWORD;
type INT (line 18) | typedef int INT;
type UINT (line 19) | typedef unsigned int UINT;
type BYTE (line 22) | typedef unsigned char BYTE;
type SHORT (line 25) | typedef short SHORT;
type WORD (line 26) | typedef unsigned short WORD;
type WCHAR (line 27) | typedef unsigned short WCHAR;
type LONG (line 30) | typedef long LONG;
type DWORD (line 31) | typedef unsigned long DWORD;
type QWORD (line 34) | typedef unsigned long long QWORD;
FILE: menu/ff/syscall.c
function ff_cre_syncobj (line 13) | int ff_cre_syncobj ( /* 1:Function succeeded, 0:Could not create the syn...
function ff_del_syncobj (line 46) | int ff_del_syncobj ( /* 1:Function succeeded, 0:Could not delete due to ...
function ff_req_grant (line 75) | int ff_req_grant ( /* 1:Got a grant to access the volume, 0:Could not ge...
function ff_rel_grant (line 101) | void ff_rel_grant (
function ff_memfree (line 138) | void ff_memfree (
FILE: menu/flash.c
function flashInit (line 18) | void flashInit() {
function flashWrite (line 33) | void flashWrite(u16 *src, u16 *dst, u32 len) {
function flashErase64K (line 47) | void flashErase64K(u32 addr, u8 wait_rdy) {
function u8 (line 57) | u8 flashType() {
function u8 (line 63) | u8 flashInit_ram() {
function flashWrite_ram (line 79) | void flashWrite_ram(u16 *src, u16 *dst, u32 len) {
function u8 (line 90) | u8 flashInit_m29() {
function flashWrite_m29 (line 97) | void flashWrite_m29(u16 *src, u16 *dst, u32 len) {
function flashErase_m29 (line 118) | void flashErase_m29(u32 addr) {
function flashBusyWait_m29 (line 135) | void flashBusyWait_m29() {
function flashUnlock_m29 (line 139) | void flashUnlock_m29() {
function flashReset_m29 (line 146) | void flashReset_m29() {
FILE: menu/fmanager.c
type RecInfo (line 8) | typedef struct {
type FmState (line 13) | typedef struct {
function u8 (line 42) | u8 fmanager() {
function u8 (line 103) | u8 fmOpen() {
function u8 (line 129) | u8 fmClose() {
function u8 (line 143) | u8 fmDirOpen() {
function fmDirClose (line 166) | void fmDirClose() {
function u8 (line 180) | u8 fmLoadPage() {
function fmDrawPage (line 222) | void fmDrawPage() {
function fmIncSel (line 250) | void fmIncSel() {
function fmDecSel (line 263) | void fmDecSel() {
function u8 (line 277) | u8 fmIncPage() {
function u8 (line 309) | u8 fmDecPage() {
function u8 (line 330) | u8 fmFileOpen() {
function u16 (line 352) | u16 fmJoyRead() {
function fmAppendVersion (line 379) | void fmAppendVersion(u16 date, u16 time) {
function fmAppendDate (line 387) | void fmAppendDate(u16 date) {
function fmAppendTime (line 395) | void fmAppendTime(u16 time) {
function fmDeviceInfo (line 403) | void fmDeviceInfo() {
function fmUpdate (line 467) | void fmUpdate() {
FILE: menu/fs.c
function u8 (line 9) | u8 fsInit() {
function u8 (line 22) | u8 fileOpen(u8 *path, u8 mode) {
function u8 (line 26) | u8 fileClose() {
function u8 (line 30) | u8 fileRead(void *dst, u32 len) {
function u8 (line 53) | u8 fileSetPtr(u32 addr) {
function u8 (line 58) | u8 fileGetInfo(u8 *path, FILINFO *inf) {
function u8 (line 68) | u8 fileGetSize(u8 *path, u32 *size) {
function u32 (line 81) | u32 fileAvailable() {
function u8 (line 87) | u8 dirOpen(u8 *path) {
function u8 (line 92) | u8 dirReadNext(FILINFO *inf) {
FILE: menu/main.c
function main (line 8) | int main() {
function mainInit (line 32) | void mainInit() {
function printError (line 48) | void printError(u8 error) {
FILE: menu/std.c
function mem_set (line 5) | void mem_set(void *dst, u8 val, u32 size) {
function mem_copy (line 11) | void mem_copy(void *dst, void *src, u32 size) {
function u8 (line 18) | u8 *str_append(u8 *dst, u8 *src) {
function str_copy (line 26) | void str_copy(u8 *src, u8 *dst) {
function u8 (line 32) | u8* str_append_date(u8 *dst, u16 date) {
function u8 (line 41) | u8* str_append_time(u8 *dst, u16 time) {
function u8 (line 50) | u8* str_append_version(u8 *dst, u16 date, u16 time) {
function u8 (line 60) | u8 *str_append_hex8(u8 *dst, u8 num) {
function u8 (line 73) | u8 *str_append_num(u8 *dst, u32 num) {
function u8 (line 89) | u8 decToBcd(u8 val) {
function u16 (line 95) | u16 swap16(u16 val) {
FILE: menu/sys.c
function sysInit (line 13) | void sysInit(u8 mode, u8 plan_w, u8 plan_h) {
function u16 (line 57) | u16 sysJoyRead() {
function u16 (line 77) | u16 sysJoyWait() {
function gVsync (line 95) | void gVsync() {
function gSetColor (line 108) | void gSetColor(u16 color, u16 val) {
function vdpVramWrite (line 118) | void vdpVramWrite(u16 *src, u16 dst, u32 len) {
function vdpCramWrite (line 125) | void vdpCramWrite(u16 *src, u16 dst, u16 len) {
function vdpVsramWrite (line 132) | void vdpVsramWrite(u16 *src, u16 dst, u16 len) {
function vdpVramWriteDMA (line 139) | void vdpVramWriteDMA(void *src, u16 dst, u16 len) {
function vdpCramWriteDMA (line 151) | void vdpCramWriteDMA(void *src, u16 dst, u16 len) {
function gSetPal (line 168) | void gSetPal(u16 pal) {
function gSetPlan (line 172) | void gSetPlan(u16 plan) {
function gCleanPlan (line 177) | void gCleanPlan() {
function gAppendString (line 189) | void gAppendString(u8 *str) {
function gAppendChar (line 196) | void gAppendChar(u8 val) {
function gConsPrint (line 200) | void gConsPrint(u8 *str) {
function gAppendHex4 (line 206) | void gAppendHex4(u8 val) {
function gAppendHex8 (line 212) | void gAppendHex8(u8 val) {
function gAppendHex16 (line 218) | void gAppendHex16(u16 val) {
function gAppendHex32 (line 224) | void gAppendHex32(u32 val) {
function gPrintHex (line 231) | void gPrintHex(void *src, u16 len) {
function gAppendNum (line 243) | void gAppendNum(u32 num) {
function gSetXY (line 262) | void gSetXY(u16 x, u16 y) {
function gProgressBar (line 268) | void gProgressBar(u32 rom_size, u16 block_size, u32 progress) {
FILE: menu/sys.h
type Sprite (line 36) | typedef struct {
Condensed preview — 48 files, each showing path, character count, and a content snippet. Download the .json file or copy for the full structured content (1,513K chars).
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"chars": 66,
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},
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"path": "LICENSE",
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"path": "menu/cfg.h",
"chars": 693,
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"path": "menu/everdrive.c",
"chars": 5755,
"preview": "\n#include \"main.h\"\n#include \"flash.h\"\n\n//control register\n#define CTRL_REG *((vu16 *) 0xA130E0)\n\n\n//ctrl write\n#d"
},
{
"path": "menu/everdrive.h",
"chars": 794,
"preview": "/* \n * File: everdrive.h\n * Author: igor\n *\n * Created on December 7, 2021, 2:19 PM\n */\n\n#ifndef SPI_H\n#define\tSPI_H\n\n"
},
{
"path": "menu/ff/00history.txt",
"chars": 8545,
"preview": "----------------------------------------------------------------------------\n Revision history of FatFs module\n--------"
},
{
"path": "menu/ff/00readme.txt",
"chars": 822,
"preview": "FatFs Module Source Files R0.12c\n\n\nFILES\n\n 00readme.txt This file.\n 00history.txt Revision history.\n ff.c "
},
{
"path": "menu/ff/ccsbcs.c",
"chars": 25038,
"preview": "/*------------------------------------------------------------------------*/\n/* Unicode - Local code bidirectional conve"
},
{
"path": "menu/ff/diskio.c",
"chars": 4040,
"preview": "/*-----------------------------------------------------------------------*/\n/* Low level disk I/O module skeleton for Fa"
},
{
"path": "menu/ff/diskio.h",
"chars": 2627,
"preview": "/*-----------------------------------------------------------------------/\n/ Low level disk interface modlue include fi"
},
{
"path": "menu/ff/ff.c",
"chars": 205350,
"preview": "/*----------------------------------------------------------------------------/\n/ FatFs - Generic FAT file system modul"
},
{
"path": "menu/ff/ff.h",
"chars": 13379,
"preview": "/*----------------------------------------------------------------------------/\n/ FatFs - Generic FAT file system modul"
},
{
"path": "menu/ff/ffconf.h",
"chars": 10384,
"preview": "/*---------------------------------------------------------------------------/\n/ FatFs - FAT file system module configu"
},
{
"path": "menu/ff/integer.h",
"chars": 817,
"preview": "/*-------------------------------------------*/\n/* Integer type definitions for FatFs module */\n/*----------------------"
},
{
"path": "menu/ff/syscall.c",
"chars": 4207,
"preview": "/*------------------------------------------------------------------------*/\n/* Sample code of OS dependent controls for"
},
{
"path": "menu/flash.c",
"chars": 2732,
"preview": "\n\n#include \"main.h\" \n\nu8 flashInit_ram();\nvoid flashWrite_ram(u16 *src, u16 *dst, u32 len);\n\nu8 flashInit_m29();\nvoid fl"
},
{
"path": "menu/flash.h",
"chars": 355,
"preview": "/* \n * File: flash.h\n * Author: igor\n *\n * Created on December 8, 2021, 3:39 PM\n */\n\n#ifndef FLASH_H\n#define\tFLASH_H\n\n"
},
{
"path": "menu/fmanager.c",
"chars": 9303,
"preview": "\n\n#include \"main.h\"\n\n#define FTYPE_FILE 1\n#define FTYPE_DIR 2\n\ntypedef struct {\n u8 mame[MAX_STR_LEN + 1];"
},
{
"path": "menu/fmanager.h",
"chars": 158,
"preview": "/* \n * File: fmanager.h\n * Author: igor\n *\n * Created on December 7, 2021, 4:21 PM\n */\n\n#ifndef MENU_H\n#define\tMENU_H\n"
},
{
"path": "menu/fs.c",
"chars": 1680,
"preview": "\n#include \"main.h\"\n\n\nFATFS fs;\nFIL file_io;\nDIR dir;\n\nu8 fsInit() {\n\n u8 resp;\n \n mem_set(&fs, 0, sizeof (FATFS)"
},
{
"path": "menu/fs.h",
"chars": 456,
"preview": "/* \n * File: fs.h\n * Author: igor\n *\n * Created on December 7, 2021, 3:40 PM\n */\n\n#ifndef FS_H\n#define\tFS_H\n\n#include "
},
{
"path": "menu/main.c",
"chars": 1302,
"preview": "\n#include \"main.h\"\n\n\nvoid mainInit();\nvoid printError(u8 error);\n\nint main() {\n\n u8 resp;\n\n mainInit();\n\n\n whil"
},
{
"path": "menu/main.h",
"chars": 287,
"preview": "/* \n * File: main.h\n * Author: igor\n *\n * Created on April 28, 2020, 12:46 AM\n */\n\n#ifndef MAIN_H\n#define\tMAIN_H\n\n#inc"
},
{
"path": "menu/rom.ld",
"chars": 2476,
"preview": "OUTPUT_ARCH(m68k)\nSEARCH_DIR(.)\n/*GROUP(-lbcc -lc -lgcc)*/\n__DYNAMIC = 0;\n\n/*\n * Setup the memory map of the SEGA Gene"
},
{
"path": "menu/spi.s",
"chars": 698,
"preview": "\n.equ CTRL_REG, 0xA130E0\n\n\n.macro ldp pidx, reg, ris\n move.l (4 + \\pidx * 4 + \\ris * 4)(%sp), \\reg\n.endm\n\n.global "
},
{
"path": "menu/std.c",
"chars": 2013,
"preview": "\n\n#include \"main.h\"\n\nvoid mem_set(void *dst, u8 val, u32 size) {\n\n u8 *dst8 = dst;\n while (size--)*dst8++ = val;\n}"
},
{
"path": "menu/std.h",
"chars": 543,
"preview": "/* \n * File: std.h\n * Author: igor\n *\n * Created on December 7, 2021, 4:42 PM\n */\n\n#ifndef STR_H\n#define\tSTR_H\n\nvoid m"
},
{
"path": "menu/sys.c",
"chars": 5773,
"preview": "\n#include \"main.h\"\n\n\nextern u16 font_base[];\n\nu16 vdp_regs[] = {\n 0x8004, 0x8104, 0x8230, 0x832c, 0x8407, 0x8554, 0x8"
},
{
"path": "menu/sys.h",
"chars": 7722,
"preview": "/* \n * File: sys.h\n * Author: krik\n *\n * Created on October 22, 2014, 9:02 PM\n */\n\n//38 * 205 = 7790\n//38 * 164 = 6232"
},
{
"path": "menu/usb.bat",
"chars": 97,
"preview": "..\\mega-pro-dbg\\megalink.exe -memwr open-ed.md 0 ../mega-pro-dbg/map_smd/output_files/mapper.rbf\n"
},
{
"path": "open-ed-mapper.txt",
"chars": 1191,
"preview": "\n*************************************** Memory map (m68k)\n0x000000-0x1FFFFF ROM\n0x200000-0x3FFFFF ROM/RAM\n0xA13000-0xA1"
},
{
"path": "open-ed.v",
"chars": 4236,
"preview": "\n\n\n\nmodule open_ed(\n\t\n\t\n\t//cpu bus\n\tinput [7:0]cpu_data,\n\tinput cpu_addr21, time_n, oe_n, we_lo_n, ce_lo_n, rst_n,\n\t\n\t//"
},
{
"path": "pcb_src/fp-info-cache",
"chars": 2,
"preview": "0\n"
},
{
"path": "pcb_src/open-ed-Rev.B.kicad_pcb",
"chars": 693124,
"preview": "(kicad_pcb (version 20211014) (generator pcbnew)\n\n (general\n (thickness 1.6)\n )\n\n (paper \"A4\")\n (layers\n (0 \"F"
},
{
"path": "pcb_src/open-ed-Rev.B.kicad_prl",
"chars": 1158,
"preview": "{\n \"board\": {\n \"active_layer\": 37,\n \"active_layer_preset\": \"All Layers\",\n \"auto_track_width\": true,\n \"hidde"
},
{
"path": "pcb_src/open-ed-Rev.B.kicad_pro",
"chars": 5377,
"preview": "{\n \"board\": {\n \"design_settings\": {\n \"defaults\": {\n \"board_outline_line_width\": 0.049999999999999996,\n "
},
{
"path": "readme.md",
"chars": 1290,
"preview": "# Open-ED\n\nOpen-ED is a very simple and cheap open source Genesis/Megadrive cartridge.\nThe cartridge does not have its o"
},
{
"path": "schematic/open-ed_rev.b.kicad_sch",
"chars": 253757,
"preview": "(kicad_sch (version 20211123) (generator eeschema)\n\n (uuid d473db13-8160-4e3c-a469-d039558f6104)\n\n (paper \"A4\")\n\n (ti"
},
{
"path": "schematic/sega_bus.kicad_sch",
"chars": 151141,
"preview": "(kicad_sch (version 20211123) (generator eeschema)\n\n (uuid a3c7f6d6-b7c1-415f-9599-44e8ca388c92)\n\n (paper \"A4\")\n\n (ti"
}
]
// ... and 5 more files (download for full content)
About this extraction
This page contains the full source code of the krikzz/open-ed GitHub repository, extracted and formatted as plain text for AI agents and large language models (LLMs). The extraction includes 48 files (1.4 MB), approximately 652.4k tokens, and a symbol index with 236 extracted functions, classes, methods, constants, and types. Use this with OpenClaw, Claude, ChatGPT, Cursor, Windsurf, or any other AI tool that accepts text input. You can copy the full output to your clipboard or download it as a .txt file.
Extracted by GitExtract — free GitHub repo to text converter for AI. Built by Nikandr Surkov.