struct dirent *fat_read_directory(struct fs *fs, char **name)
{
printf("[fat_read_directory]\r\n");
struct dirent *cur_dir = fat_read_dir((struct fat_fs *)fs, (void*)0);
while(*name)
{
// Search the directory entries for one of the requested name
int found = 0;
while(cur_dir)
{
if(!strcmp(*name, cur_dir->name))
{
if(!cur_dir->is_dir)
{
errno = ENOTDIR;
return (void*)0;
}
found = 1;
cur_dir = fat_read_dir((struct fat_fs *)fs, cur_dir);
name++;
break;
}
cur_dir = cur_dir->next;
}
if(!found)
{
#ifdef FAT_DEBUG
printf("FAT: path part %s not found\r\n", *name);
#endif
errno = ENOENT;
return (void*)0;
}
}
return cur_dir;
}
SdErrorCode directoryNextEntry(char* buffer, uint8_t bufsize) {
struct fat_dir_entry_struct entry;
// This is a bit of a hack. For whatever reason, some filesystems return
// files with nulls as the first character of their name. This isn't
// necessarily broken in of itself, but a null name is also our way
// of signalling we've gone through the directory, so we discard these
// entries. We have an upper limit on the number of entries to cycle
// through, so we don't potentially lock up here.
uint8_t tries = 5;
while (tries) {
if (fat_read_dir(dd, &entry)) {
int i;
for (i = 0; (i < bufsize-1) && entry.long_name[i] != 0; i++) {
buffer[i] = entry.long_name[i];
}
buffer[i] = 0;
if (i > 0) {
break;
} else {
tries--;
}
} else {
buffer[0] = 0;
break;
}
}
return SD_SUCCESS;
}
/* recursively delete entries */
bool SDCardEntry::deleteFirstEntry() {
if (!isDirectory())
return false;
fat_dir_struct *dd = fat_open_dir(SDCard.fs, &dir_entry);
if (dd == NULL)
return false;
SDCardEntry entry;
uint8_t ret;
again:
ret = fat_read_dir(dd, &entry.dir_entry);
if (!strcmp(entry.dir_entry.long_name, ".") ||
!strcmp(entry.dir_entry.long_name, "..")) {
goto again;
}
fat_close_dir(dd);
if (!ret) {
return false;
}
entry.setFromParentEntry(this);
return entry.deleteEntry(true);
}
//! This function goes to at the parent directory
//!
//! @return false in case of error, see global value "fs_g_status" for more detail
//! @return true otherwise
//!
//! @verbatim
//! After, the filtered file list changes and contains the files and directories of the new directory.
//! By default, the file selected in filtered file list is the previous (children) directory.
//! @endverbatim
//!
bool nav_filterlist_gotoparent( void )
{
uint32_t u32_cluster_old_dir;
if (!fat_check_mount_noopen())
return false;
if (0 == fs_g_nav.u32_cluster_sel_dir)
{
fs_g_status = FS_ERR_IS_ROOT; // There aren't parent
return false;
}
// Select and read information about directory ".."
fs_g_nav_fast.u16_entry_pos_sel_file = 1;
if ( !fat_read_dir())
return false;
fat_get_entry_info();
// Save the children directory cluster
u32_cluster_old_dir = fs_g_nav.u32_cluster_sel_dir;
// Select the parent directory via information present in the current directory ".."
fs_g_nav.u32_cluster_sel_dir = fs_g_nav_entry.u32_cluster;
// Select the children directory in new directory (=parent directory)
if( false == nav_filterlist_reset())
return false;
while( nav_filterlist_next() )
{
if (fs_g_nav_entry.u32_cluster == u32_cluster_old_dir)
return true; // It is the children directory
}
fs_g_status = FS_ERR_FS;
return false;
}
bool findFileInDir(const char* name, struct fat_dir_entry_struct* dir_entry)
{
while(fat_read_dir(dd, dir_entry))
{
if(strcmp(dir_entry->long_name, name) == 0)
{
fat_reset_dir(dd);
return true;
}
}
return false;
}
uint8_t find_file_in_dir(struct fat_fs_struct* fs, struct fat_dir_struct* dd, const char* name, struct fat_dir_entry_struct* dir_entry)
{
while(fat_read_dir(dd, dir_entry))
{
if(strcmp(dir_entry->long_name, name) == 0)
{
fat_reset_dir(dd);
return 1;
}
}
return 0;
}
uint8_t RepRapSDCard::sd_scan_next(char* buffer, uint8_t bufsize) {
struct fat_dir_entry_struct entry;
if (fat_read_dir(dd, &entry)) {
int i;
for (i = 0; (i < bufsize-1) && entry.long_name[i] != 0; i++) {
buffer[i] = entry.long_name[i];
}
buffer[i] = 0;
} else {
buffer[0] = 0;
}
return 0;
}
bool FatFsClass::find_file_in_dir(const char *file_name,
struct fat_dir_entry_struct *dir_entry)
{
while(1){
if(!fat_read_dir(_dd, dir_entry))
break;
if(strcmp(file_name, dir_entry->long_name) == 0){
fat_reset_dir(_dd);
return true;
}
}
return false;
}
uint8_t find_file_in_dir(struct fat_fs_struct* fs, struct fat_dir_struct* dd, const char* name, struct fat_dir_entry_struct* dir_entry)
{
fat_reset_dir(dd); //Make sure to start from the beginning of the directory!
while(fat_read_dir(dd, dir_entry))
{
if(strcmp(dir_entry->long_name, name) == 0)
{
//fat_reset_dir(dd);
return 1;
}
}
return 0;
}
char get_wav_filename(struct fat_dir_struct* cur_dir, char * new_file)
{
//'directory' is a global variable of type directory_entry_struct
//Get the next file from the root directory
while(fat_read_dir(cur_dir, &dir_entry))
{
//If we found a .wav file, copy the name and exit!
if(strcmp(&dir_entry.long_name[strlen(dir_entry.long_name)-4], ".wav")==0)
{
sprintf(new_file, "%s", dir_entry.long_name);
return 1;
}
}
return 0; //If we got to the end of the current directory without finding a wav file, return 0
}
bool SDCardEntry::findFile(const char *name, struct fat_dir_entry_struct *entry) {
if (!isDirectory())
return false;
fat_dir_struct *dd = fat_open_dir(SDCard.fs, &dir_entry);
if (dd == NULL)
return false;
while (fat_read_dir(dd, entry)) {
if (strcmp(entry->long_name, name) == 0) {
fat_close_dir(dd);
return true;
}
}
fat_close_dir(dd);
return false;
}
int SDCardEntry::listDirectory(SDCardEntry entries[], int maxCount) {
if (!isDirectory())
return -1;
int entryCount = 0;
fat_dir_struct *dd = fat_open_dir(SDCard.fs, &dir_entry);
if (dd == NULL)
return -1;
while (fat_read_dir(dd, &entries[entryCount].dir_entry) && (entryCount < maxCount)) {
if (!strcmp(entries[entryCount].dir_entry.long_name, "."))
continue;
entries[entryCount].setFromParentEntry(this);
entryCount++;
}
fat_close_dir(dd);
return entryCount;
}
int16_t
parse_cmd_sd_dir(char *cmd, char *output, uint16_t len)
{
if (vfs_sd_rootnode == 0)
return ECMD_FINAL(snprintf_P(output, len,
PSTR("SD/MMC backend not available.")));
if (cmd[0] != ECMD_STATE_MAGIC)
{
fat_reset_dir(vfs_sd_rootnode);
cmd[0] = ECMD_STATE_MAGIC;
}
struct fat_dir_entry_struct dir_entry;
if (!fat_read_dir(vfs_sd_rootnode, &dir_entry))
return ECMD_FINAL_OK;
return ECMD_AGAIN(snprintf_P(output, len, PSTR("%32s%c %ld"),
dir_entry.long_name,
dir_entry.attributes & FAT_ATTRIB_DIR ? '/' : ' ',
dir_entry.file_size));
}
bool SDCardEntry::isEmpty() {
if (!isDirectory()) {
return false;
}
fat_dir_struct *dd = fat_open_dir(SDCard.fs, &dir_entry);
if (dd == NULL)
return -1;
uint8_t cnt = 0;
struct fat_dir_entry_struct entry;
uint8_t ret;
while ((ret = fat_read_dir(dd, &entry))) {
if (!strcmp(entry.long_name, ".") ||
!strcmp(entry.long_name, "..")) {
continue;
} else {
cnt++;
break;
}
}
fat_close_dir(dd);
return (cnt == 0);
}
int fat_load(const char *path, uint8_t *buf, uint32_t buf_size) {
const char *c = path;
int offset;
struct dirent *node = NULL;
struct dirent *current_node = NULL;
struct dirent *free_node = NULL;
struct fs* filesys = fs_get();
if( path == NULL) {
return -1;
}
// find first folder/file
// look for '/' or '/'
while(1) {
if(*c == '/') {
c++;
}
offset = fat_get_next_path(c);
char* path_buf = (char*)malloc(sizeof(char) * offset + 1);
memcpy(path_buf, c, offset);
path_buf[offset] = '\0';
// now path_buf contains the next segment in the path.
// search for it!
// delete all the other nodes in the linked list
node = fat_read_dir( (struct fat_fs*)filesys, current_node);
//uart_puts("fat read dir gives:\r\n");
while(node) {
// uart_puts(node->name);
// uart_puts("\r\n");
if( !strcmp( node->name, path_buf) ) {
current_node = node;
node = node->next;
} else {
free_node = node;
node = node->next;
free(free_node);
}
}
if( current_node == NULL) {
return -1;
}
// current_node now contains the dirent for the next path segment
if(current_node->is_dir) {
} else {
break; // is file
}
c = c + offset;
free(path_buf);
}
// do something to load the file
if( current_node->byte_size > buf_size) {
uart_put_uint32_t(current_node->byte_size, 10);
return -1;
}
int ret = fat_read( (struct fat_fs*)filesys,
current_node->cluster_no,
buf,
current_node->byte_size,
0);
return ret;
}
int main()
{
/* we will just use ordinary idle mode */
set_sleep_mode(SLEEP_MODE_IDLE);
/* setup uart */
uart_init();
while(1)
{
/* setup sd card slot */
if(!sd_raw_init())
{
#if DEBUG
uart_puts_p(PSTR("MMC/SD initialization failed\n"));
#endif
continue;
}
/* open first partition */
struct partition_struct* partition = partition_open(sd_raw_read,
sd_raw_read_interval,
#if SD_RAW_WRITE_SUPPORT
sd_raw_write,
sd_raw_write_interval,
#else
0,
0,
#endif
0
);
if(!partition)
{
/* If the partition did not open, assume the storage device
* is a "superfloppy", i.e. has no MBR.
*/
partition = partition_open(sd_raw_read,
sd_raw_read_interval,
#if SD_RAW_WRITE_SUPPORT
sd_raw_write,
sd_raw_write_interval,
#else
0,
0,
#endif
-1
);
if(!partition)
{
#if DEBUG
uart_puts_p(PSTR("opening partition failed\n"));
#endif
continue;
}
}
/* open file system */
struct fat_fs_struct* fs = fat_open(partition);
if(!fs)
{
#if DEBUG
uart_puts_p(PSTR("opening filesystem failed\n"));
#endif
continue;
}
/* open root directory */
struct fat_dir_entry_struct directory;
fat_get_dir_entry_of_path(fs, "/", &directory);
struct fat_dir_struct* dd = fat_open_dir(fs, &directory);
if(!dd)
{
#if DEBUG
uart_puts_p(PSTR("opening root directory failed\n"));
#endif
continue;
}
/* print some card information as a boot message */
print_disk_info(fs);
/* provide a simple shell */
char buffer[24];
while(1)
{
/* print prompt */
uart_putc('>');
uart_putc(' ');
/* read command */
char* command = buffer;
if(read_line(command, sizeof(buffer)) < 1)
continue;
/* execute command */
if(strcmp_P(command, PSTR("init")) == 0)
{
break;
}
else if(strncmp_P(command, PSTR("cd "), 3) == 0)
{
command += 3;
if(command[0] == '\0')
continue;
/* change directory */
struct fat_dir_entry_struct subdir_entry;
if(find_file_in_dir(fs, dd, command, &subdir_entry))
{
struct fat_dir_struct* dd_new = fat_open_dir(fs, &subdir_entry);
if(dd_new)
{
fat_close_dir(dd);
dd = dd_new;
continue;
}
}
uart_puts_p(PSTR("directory not found: "));
uart_puts(command);
uart_putc('\n');
}
else if(strcmp_P(command, PSTR("ls")) == 0)
{
/* print directory listing */
struct fat_dir_entry_struct dir_entry;
while(fat_read_dir(dd, &dir_entry))
{
uint8_t spaces = sizeof(dir_entry.long_name) - strlen(dir_entry.long_name) + 4;
uart_puts(dir_entry.long_name);
uart_putc(dir_entry.attributes & FAT_ATTRIB_DIR ? '/' : ' ');
while(spaces--)
uart_putc(' ');
uart_putdw_dec(dir_entry.file_size);
uart_putc('\n');
}
}
else if(strncmp_P(command, PSTR("cat "), 4) == 0)
{
command += 4;
if(command[0] == '\0')
continue;
/* search file in current directory and open it */
struct fat_file_struct* fd = open_file_in_dir(fs, dd, command);
if(!fd)
{
uart_puts_p(PSTR("error opening "));
uart_puts(command);
uart_putc('\n');
continue;
}
/* print file contents */
uint8_t buffer[8];
uint32_t offset = 0;
while(fat_read_file(fd, buffer, sizeof(buffer)) > 0)
{
uart_putdw_hex(offset);
uart_putc(':');
for(uint8_t i = 0; i < 8; ++i)
{
uart_putc(' ');
uart_putc_hex(buffer[i]);
}
uart_putc('\n');
offset += 8;
}
fat_close_file(fd);
}
else if(strcmp_P(command, PSTR("disk")) == 0)
{
if(!print_disk_info(fs))
uart_puts_p(PSTR("error reading disk info\n"));
}
#if FAT_WRITE_SUPPORT
else if(strncmp_P(command, PSTR("rm "), 3) == 0)
{
command += 3;
if(command[0] == '\0')
continue;
struct fat_dir_entry_struct file_entry;
if(find_file_in_dir(fs, dd, command, &file_entry))
{
if(fat_delete_file(fs, &file_entry))
continue;
}
uart_puts_p(PSTR("error deleting file: "));
uart_puts(command);
uart_putc('\n');
}
else if(strncmp_P(command, PSTR("touch "), 6) == 0)
{
command += 6;
if(command[0] == '\0')
continue;
struct fat_dir_entry_struct file_entry;
if(!fat_create_file(dd, command, &file_entry))
{
uart_puts_p(PSTR("error creating file: "));
uart_puts(command);
uart_putc('\n');
}
}
else if(strncmp_P(command, PSTR("write "), 6) == 0)
{
command += 6;
if(command[0] == '\0')
continue;
char* offset_value = command;
while(*offset_value != ' ' && *offset_value != '\0')
++offset_value;
if(*offset_value == ' ')
*offset_value++ = '\0';
else
continue;
/* search file in current directory and open it */
struct fat_file_struct* fd = open_file_in_dir(fs, dd, command);
if(!fd)
{
uart_puts_p(PSTR("error opening "));
uart_puts(command);
uart_putc('\n');
continue;
}
int32_t offset = strtolong(offset_value);
if(!fat_seek_file(fd, &offset, FAT_SEEK_SET))
{
uart_puts_p(PSTR("error seeking on "));
uart_puts(command);
uart_putc('\n');
fat_close_file(fd);
continue;
}
/* read text from the shell and write it to the file */
uint8_t data_len;
while(1)
{
/* give a different prompt */
uart_putc('<');
uart_putc(' ');
/* read one line of text */
data_len = read_line(buffer, sizeof(buffer));
if(!data_len)
break;
/* write text to file */
if(fat_write_file(fd, (uint8_t*) buffer, data_len) != data_len)
{
uart_puts_p(PSTR("error writing to file\n"));
break;
}
}
fat_close_file(fd);
}
else if(strncmp_P(command, PSTR("mkdir "), 6) == 0)
{
command += 6;
if(command[0] == '\0')
continue;
struct fat_dir_entry_struct dir_entry;
if(!fat_create_dir(dd, command, &dir_entry))
{
uart_puts_p(PSTR("error creating directory: "));
uart_puts(command);
uart_putc('\n');
}
}
#endif
#if SD_RAW_WRITE_BUFFERING
else if(strcmp_P(command, PSTR("sync")) == 0)
{
if(!sd_raw_sync())
uart_puts_p(PSTR("error syncing disk\n"));
}
#endif
else if(strcmp_P(command, PSTR("sync")) == 0)
{
// vytvor adresar mereni_teploty
// nekonecna smycka - pomoci RTCka kazdou minutu odmer teplotu
}
else
{
uart_puts_p(PSTR("unknown command: "));
uart_puts(command);
uart_putc('\n');
}
}
/* close directory */
fat_close_dir(dd);
/* close file system */
fat_close(fs);
/* close partition */
partition_close(partition);
}
return 0;
}
int syscall_file_readdir(unsigned long *vdirdesc, char *dirent)
{
return fat_read_dir(vdirdesc, dirent);
}
//! This function moves back to the parent directory and selects this directory
//!
//! @param b_direction direction of navigation (FS_FIND_NEXT or FS_FIND_PREV)
//!
//! @return The state of the function
//!
static navauto_mov_explorer_rec_t navauto_mov_explorer_updir(bool b_direction)
{
bool b_updir_ok = false;
// To support directory only mode
if (g_navauto_exp_mode == NAVAUTO_MODE_DIRONLY)
return NAVAUTO_MOV_EXPLORER_ERROR;
// To Support subdirectories mode
if (g_navauto_exp_mode == NAVAUTO_MODE_DIRSUB)
{
// If the selection is on the root level
if (g_navauto_u16_dir_level <= g_navauto_u16_dir_level_root)
return NAVAUTO_MOV_EXPLORER_ERROR;
}
#if defined(NAVAUTO_SPEED_OPTIMIZATION) && NAVAUTO_SPEED_OPTIMIZATION == true
if (i_navauto_cache >= 0)
{
if (i_navauto_cache >= NAVAUTO_SPEED_OPTIMIZATION_LEVEL)
{
if (nav_dir_gotoparent())
{
b_updir_ok = true;
i_navauto_cache--;
}
}
else
{
fat_clear_entry_info_and_ptr();
// Look for the "../" directory entry
fs_g_nav_fast.u16_entry_pos_sel_file = 1;
if (!fat_read_dir())
return NAVAUTO_MOV_EXPLORER_ERROR;
fat_get_entry_info();
fs_g_nav.u32_cluster_sel_dir = fs_g_nav_entry.u32_cluster;
fs_g_nav.u16_pos_sel_file = navauto_cache[i_navauto_cache].u16_pos_file;
fs_g_nav_fast.u16_entry_pos_sel_file = navauto_cache[i_navauto_cache].u16_entry_pos_file;
fat_read_dir();
fat_get_entry_info();
i_navauto_cache--;
b_updir_ok = true;
}
}
#else
if (nav_dir_gotoparent())
b_updir_ok = true;
#endif
if (b_updir_ok)
{
// Set folder change bit
bitfield_status.folder_change = 1;
g_navauto_u16_dir_level--;
return NAVAUTO_MOV_EXPLORER_RECURSIVE;
}
else // If it fails, means the pointer is on the root
return NAVAUTO_MOV_EXPLORER_ERROR;
}
void IBN_FileAccess (u8 nParamsGet_u8,u8 CMD_u8,u32 Param_u32)
{
s32 FileID_s32;
s32 Ret_s32;
// testtt[1000] = 4;
if (0 == nParamsGet_u8)
{
CI_LocalPrintf ("File access\r\n");
CI_LocalPrintf (" 0 = Set lun 0\r\n");
CI_LocalPrintf (" 1 = Mount\r\n");
CI_LocalPrintf (" 2 = Show free space\r\n");
CI_LocalPrintf ("11 = Set BUSY Lun 0\r\n");
CI_LocalPrintf ("12 = Update contend lun X\r\n");
CI_LocalPrintf ("16 = Copy test.txt to test1.txt\n\r");
CI_LocalPrintf ("17 = Format LUN X\n\r");
return;
}
switch (CMD_u8)
{
case 0 :
fs_g_nav.u8_lun = 0; // On chip RAM
break;
#if LUN_2 == ENABLE
case 1 :
if (2 != nParamsGet_u8)
{
CI_LocalPrintf ("USAGE: fa 1 [lun]\r\n");
break;
}
b_fsaccess_init ();
fs_g_nav.u8_lun = Param_u32; // On chip RAM
virtual_test_unit_ready() ;
if (TRUE == fat_mount ())
{
CI_LocalPrintf ("Mount LUN %d OK\r\n",Param_u32);
}
else
{
CI_LocalPrintf ("Mount LUN %d FAIL - %d - %s\r\n",Param_u32,fs_g_status, IBN_FileSystemErrorText(fs_g_status));
}
// nav_partition_mount ();
break;
#endif
case 2 :
CI_LocalPrintf ("Free mem = %d sectors\r\n",fat_getfreespace());
break;
case 3 :
FileID_s32 = open ("test.txt",O_CREAT|O_RDWR);
CI_LocalPrintf ("Open = %d - %d - %s\r\n",FileID_s32,fs_g_status, IBN_FileSystemErrorText(fs_g_status));
Ret_s32 = write (FileID_s32,"Test\n",6);
CI_LocalPrintf ("Write = %d \r\n",Ret_s32);
/*
if (TRUE == fat_cache_flush ())
{
CI_LocalPrintf ("fat_cache_flush OK\r\n");
}
else
{
CI_LocalPrintf ("fat_cache_flush FAIL - %d - %s\r\n",fs_g_status, IBN_FileSystemErrorText(fs_g_status));
}
*/
Ret_s32 = close (FileID_s32);
CI_LocalPrintf ("Close = %d \r\n",Ret_s32);
#if LUN_2 == ENABLE
virtual_unit_state_e = CTRL_BUSY; // only for ram disk
#endif
sd_mmc_mci_unit_state_e = CTRL_BUSY;
vTaskDelay (500);
#if LUN_2 == ENABLE
virtual_unit_state_e = CTRL_GOOD;
#endif
sd_mmc_mci_unit_state_e = CTRL_GOOD;
break;
case 4 :
if (2 != nParamsGet_u8)
{
CI_LocalPrintf ("USAGE: fa 6 [lun]\r\n");
break;
}
FAI_Write (Param_u32);
break;
case 5 :
FAI_ShowDirContent ();
break;
case 6:
if (2 != nParamsGet_u8)
{
CI_LocalPrintf ("USAGE: fa 6 [lun]\r\n");
break;
}
FAI_mount(Param_u32);
break;
case 7 :
FAI_free_space(Param_u32);
break;
case 8 :
FAI_nb_drive();
break;
case 9 :
FAI_Dir (0);
break;
case 10 :
if (TRUE == nav_drive_set (Param_u32))
{
CI_LocalPrintf ("nav_drive_set OK\r\n");
}
else
{
CI_LocalPrintf ("nav_drive_set FAIL - %d - %s\r\n",fs_g_status, IBN_FileSystemErrorText(fs_g_status));
}
break;
case 11 :
#if LUN_2 == ENABLE
CI_LocalPrintf ("Set LUN %d CTRL_BUSY\n\r",Param_u32);
//virtual_unit_state_e = CTRL_BUSY;
set_virtual_unit_busy ();
#endif
break;
case 12 :
CI_LocalPrintf ("Update LUN %d\n\r",Param_u32);
FAI_UpdateContend (Param_u32);;
break;
case 13 :
CI_LocalPrintf ("fat_cache_flush\n\r");
fat_cache_flush ();
break;
case 14 :
CI_LocalPrintf ("fat_check_device\n\r");
fat_check_device ();
break;
case 15 :
CI_LocalPrintf ("fat_check_device\n\r");
fat_read_dir ();
break;
case 16 :
CI_LocalPrintf ("Copy test.txt to test1.txt\n\r");
{
u8 F1[10];
u8 F2[10];
strcpy ((char*)F1,"test.txt");
strcpy ((char*)F2,"test1.txt");
FAI_CopyFile (F1,F2);
}
break;
case 17 :
CI_LocalPrintf ("Format LUN %d\n\r",Param_u32);
nav_drive_set(Param_u32);
if( !nav_drive_format(FS_FORMAT_FAT) )
{
CI_LocalPrintf ("Format LUN %d - ERROR\n\r",Param_u32);
}
break;
}
}