uint8_t connectSD(){
// printf("attempting open sd... ");
openSD();
// printf("checkind sd");
if (dd == 0){
// printf_P(PSTR("Failed!\r\n"));
return 0;
}
// printf_P(PSTR("Success!\r\n"));
print_disk_info((struct fat_fs_struct*)fs);
return 1;
}
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;
}
static int
fatfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte)
{
cyg_io_handle_t dev_h;
fatfs_disk_t *disk;
fatfs_dir_entry_t root_dentry;
Cyg_ErrNo err;
CYG_TRACE2(TFS, "mount fste=%p mte=%p", fste, mte);
init_fatfs_fds();
CYG_TRACE1(TFS, "looking up disk device '%s'", mte->devname);
err = cyg_io_lookup(mte->devname, &dev_h);
if (err != ENOERR)
return err;
disk = (fatfs_disk_t *)malloc(sizeof(fatfs_disk_t));
if (NULL == disk)
return ENOMEM;
CYG_TRACE0(TFS, "initializing block cache");
disk->bcache_mem = (cyg_uint8 *)malloc(CYGNUM_FS_FAT_BLOCK_CACHE_MEMSIZE);
if (NULL == disk->bcache_mem)
{
free(disk);
return ENOMEM;
}
// FIXME: get block size from disk device
err = cyg_blib_io_create(dev_h, disk->bcache_mem,
CYGNUM_FS_FAT_BLOCK_CACHE_MEMSIZE, 512, &disk->blib);
if (err != ENOERR)
{
free(disk->bcache_mem);
free(disk);
return err;
}
disk->dev_h = dev_h;
CYG_TRACE0(TFS, "initializing disk");
err = fatfs_init(disk);
if (err != ENOERR)
{
cyg_blib_delete(&disk->blib);
free(disk->bcache_mem);
free(disk);
return err;
}
#if TFS
print_disk_info(disk);
#endif
CYG_TRACE0(TFS, "initializing node cache");
fatfs_node_cache_init(disk);
CYG_TRACE0(TFS, "initializing root node");
fatfs_get_root_dir_entry(disk, &root_dentry);
disk->root = fatfs_node_alloc(disk, &root_dentry);
fatfs_node_ref(disk, disk->root);
mte->root = (cyg_dir)disk->root;
mte->data = (CYG_ADDRWORD)disk;
CYG_TRACE0(TFS, "disk mounted");
return ENOERR;
}
