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#include "RepRapFirmware.h"
#include "sd_mmc.h"
// Static helper functions - not declared as class members to avoid having to include sd_mmc.h everywhere
static const char* TranslateCardType(card_type_t ct)
{
switch (ct)
{
case CARD_TYPE_SD | CARD_TYPE_HC:
return "SDHC";
case CARD_TYPE_SD:
return "SD";
case CARD_TYPE_MMC | CARD_TYPE_HC:
return "MMC High Capacity";
case CARD_TYPE_MMC:
return "MMC";
case CARD_TYPE_SDIO:
return "SDIO";
case CARD_TYPE_SD_COMBO:
return "SD COMBO";
case CARD_TYPE_UNKNOWN:
default:
return "Unknown type";
}
}
static const char* TranslateCardError(sd_mmc_err_t err)
{
switch (err)
{
case SD_MMC_ERR_NO_CARD:
return "Card not found";
case SD_MMC_ERR_UNUSABLE:
return "Card is unusable";
case SD_MMC_ERR_SLOT:
return "Slot unknown";
case SD_MMC_ERR_COMM:
return "Communication error";
case SD_MMC_ERR_PARAM:
return "Illegal input parameter";
case SD_MMC_ERR_WP:
return "Card write protected";
default:
return "Unknown error";
}
}
// Mass Storage class
MassStorage::MassStorage(Platform* p) : platform(p)
{
memset(&fileSystems, 0, sizeof(fileSystems));
}
void MassStorage::Init()
{
for (size_t i = 0; i < NumSdCards; ++i)
{
isMounted[i] = false;
}
sd_mmc_init(SdCardDetectPins, SdWriteProtectPins, SdSpiCSPins); // Initialize SD MMC stack
// Try to mount the first SD card only
char replyBuffer[100];
StringRef reply(replyBuffer, ARRAY_SIZE(replyBuffer));
do { } while (!Mount(0, reply, false));
if (reply.strlen() != 0)
{
delay(3000); // Wait a few seconds so users have a chance to see this
platform->Message(HOST_MESSAGE, reply.Pointer());
}
}
const char* MassStorage::CombineName(const char* directory, const char* fileName)
{
size_t outIndex = 0;
size_t inIndex = 0;
// DC 2015-11-25 Only prepend the directory if the filename does not have an absolute path or volume specifier
if (directory != NULL && fileName[0] != '/' && (strlen(fileName) < 2 || !isdigit(fileName[0]) || fileName[1] != ':'))
{
while (directory[inIndex] != 0 && directory[inIndex] != '\n')
{
combinedName[outIndex] = directory[inIndex];
inIndex++;
outIndex++;
if (outIndex >= ARRAY_SIZE(combinedName))
{
platform->MessageF(GENERIC_MESSAGE, "CombineName() buffer overflow.");
outIndex = 0;
}
}
if (inIndex > 0 && directory[inIndex - 1] != '/' && outIndex < ARRAY_UPB(combinedName))
{
combinedName[outIndex] = '/';
outIndex++;
}
inIndex = 0;
}
while (fileName[inIndex] != 0 && fileName[inIndex] != '\n')
{
combinedName[outIndex] = fileName[inIndex];
inIndex++;
outIndex++;
if (outIndex >= ARRAY_SIZE(combinedName))
{
platform->Message(GENERIC_MESSAGE, "CombineName() buffer overflow.");
outIndex = 0;
}
}
combinedName[outIndex] = 0;
return combinedName;
}
// Open a directory to read a file list. Returns true if it contains any files, false otherwise.
bool MassStorage::FindFirst(const char *directory, FileInfo &file_info)
{
TCHAR loc[FILENAME_LENGTH + 1];
// Remove the trailing '/' from the directory name
size_t len = strnlen(directory, ARRAY_UPB(loc));
if (len == 0)
{
loc[0] = 0;
}
else if (directory[len - 1] == '/')
{
strncpy(loc, directory, len - 1);
loc[len - 1] = 0;
}
else
{
strncpy(loc, directory, len);
loc[len] = 0;
}
findDir.lfn = nullptr;
FRESULT res = f_opendir(&findDir, loc);
if (res == FR_OK)
{
FILINFO entry;
entry.lfname = file_info.fileName;
entry.lfsize = ARRAY_SIZE(file_info.fileName);
for(;;)
{
res = f_readdir(&findDir, &entry);
if (res != FR_OK || entry.fname[0] == 0) break;
if (StringEquals(entry.fname, ".") || StringEquals(entry.fname, "..")) continue;
file_info.isDirectory = (entry.fattrib & AM_DIR);
if (file_info.fileName[0] == 0)
{
strncpy(file_info.fileName, entry.fname, ARRAY_SIZE(file_info.fileName));
}
file_info.size = entry.fsize;
file_info.lastModified = ConvertTimeStamp(entry.fdate, entry.ftime);
return true;
}
}
return false;
}
// Find the next file in a directory. Returns true if another file has been read.
bool MassStorage::FindNext(FileInfo &file_info)
{
FILINFO entry;
entry.lfname = file_info.fileName;
entry.lfsize = ARRAY_SIZE(file_info.fileName);
findDir.lfn = nullptr;
if (f_readdir(&findDir, &entry) != FR_OK || entry.fname[0] == 0)
{
//f_closedir(findDir);
return false;
}
file_info.isDirectory = (entry.fattrib & AM_DIR);
file_info.size = entry.fsize;
if (file_info.fileName[0] == 0)
{
strncpy(file_info.fileName, entry.fname, ARRAY_SIZE(file_info.fileName));
}
file_info.lastModified = ConvertTimeStamp(entry.fdate, entry.ftime);
return true;
}
// Month names. The first entry is used for invalid month numbers.
static const char *monthNames[13] = { "???", "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
// Returns the name of the specified month or '???' if the specified value is invalid.
const char* MassStorage::GetMonthName(const uint8_t month)
{
return (month <= 12) ? monthNames[month] : monthNames[0];
}
// Delete a file or directory
bool MassStorage::Delete(const char* directory, const char* fileName)
{
const char* location = (directory != NULL)
? platform->GetMassStorage()->CombineName(directory, fileName)
: fileName;
if (f_unlink(location) != FR_OK)
{
platform->MessageF(GENERIC_MESSAGE, "Can't delete file %s\n", location);
return false;
}
return true;
}
// Create a new directory
bool MassStorage::MakeDirectory(const char *parentDir, const char *dirName)
{
const char* location = platform->GetMassStorage()->CombineName(parentDir, dirName);
if (f_mkdir(location) != FR_OK)
{
platform->MessageF(GENERIC_MESSAGE, "Can't create directory %s\n", location);
return false;
}
return true;
}
bool MassStorage::MakeDirectory(const char *directory)
{
if (f_mkdir(directory) != FR_OK)
{
platform->MessageF(GENERIC_MESSAGE, "Can't create directory %s\n", directory);
return false;
}
return true;
}
// Rename a file or directory
bool MassStorage::Rename(const char *oldFilename, const char *newFilename)
{
if (newFilename[0] >= '0' && newFilename[0] <= '9' && newFilename[1] == ':')
{
// Workaround for DWC 1.13 which send a volume specification at the start of the new path.
// f_rename can't handle this, so skip past the volume specification.
// We are assuming that the user isn't really trying to rename across volumes. This is a safe assumption when the client is DWC.
newFilename += 2;
}
if (f_rename(oldFilename, newFilename) != FR_OK)
{
platform->MessageF(GENERIC_MESSAGE, "Can't rename file or directory %s to %s\n", oldFilename, newFilename);
return false;
}
return true;
}
// Check if the specified file exists
bool MassStorage::FileExists(const char *file) const
{
FILINFO fil;
fil.lfname = nullptr;
return (f_stat(file, &fil) == FR_OK);
}
bool MassStorage::FileExists(const char *directory, const char *fileName) const
{
const char *location = (directory != nullptr)
? platform->GetMassStorage()->CombineName(directory, fileName)
: fileName;
return FileExists(location);
}
// Check if the specified directory exists
bool MassStorage::DirectoryExists(const char *path) const
{
DIR dir;
dir.lfn = nullptr;
return (f_opendir(&dir, path) == FR_OK);
}
bool MassStorage::DirectoryExists(const char* directory, const char* subDirectory)
{
return DirectoryExists(CombineName(directory, subDirectory));
}
// Return the last modified time of a file, or zero if failure
time_t MassStorage::GetLastModifiedTime(const char* directory, const char *fileName) const
{
const char *location = (directory != nullptr)
? platform->GetMassStorage()->CombineName(directory, fileName)
: fileName;
FILINFO fil;
fil.lfname = nullptr;
if (f_stat(location, &fil) == FR_OK)
{
return ConvertTimeStamp(fil.fdate, fil.ftime);
}
return 0;
}
bool MassStorage::SetLastModifiedTime(const char* directory, const char *fileName, time_t time)
{
const char *location = (directory != nullptr)
? platform->GetMassStorage()->CombineName(directory, fileName)
: fileName;
const struct tm * const timeInfo = gmtime(&time);
FILINFO fno;
fno.fdate = (WORD)(((timeInfo->tm_year - 80) * 512U) | (timeInfo->tm_mon + 1) * 32U | timeInfo->tm_mday);
fno.ftime = (WORD)(timeInfo->tm_hour * 2048U | timeInfo->tm_min * 32U | timeInfo->tm_sec / 2U);
const bool ok = (f_utime(location, &fno) == FR_OK);
if (!ok)
{
reprap.GetPlatform()->MessageF(HTTP_MESSAGE, "SetLastModifiedTime didn't work for file '%s'\n", location);
}
return ok;
}
// Mount the specified SD card, returning true if done, false if needs to be called again.
// If an error occurs, return true with the error message in 'reply'.
// This may only be called to mount one card at a time.
bool MassStorage::Mount(size_t card, StringRef& reply, bool reportSuccess)
{
if (card >= NumSdCards)
{
reply.copy("SD card number out of range");
return true;
}
if (isMounted[card] && platform->AnyFileOpen(&fileSystems[card]))
{
// Don't re-mount the card if any files are open on it
reply.copy("SD card has open file(s)");
return true;
}
static bool mounting = false;
static size_t startTime;
if (!mounting)
{
sd_mmc_unmount(card); // this forces it to re-initialise the card
isMounted[card] = false;
startTime = millis();
mounting = true;
delay(2);
}
sd_mmc_err_t err = sd_mmc_check(card);
if (err != SD_MMC_OK && millis() - startTime < 5000)
{
delay(2);
return false;
}
mounting = false;
if (err != SD_MMC_OK)
{
f_mount(card, NULL);
reply.printf("Cannot initialise SD card %u: %s", card, TranslateCardError(err));
}
else
{
// Mount the file systems
FRESULT mounted = f_mount(card, &fileSystems[card]);
if (mounted != FR_OK)
{
reply.printf("Can't mount SD card %u: code %d", card, mounted);
}
else
{
isMounted[card] = true;
if (reportSuccess)
{
float capacity = sd_mmc_get_capacity(card)/1024; // get capacity and convert to Mbytes
const char* capUnits;
if (capacity >= 1024.0)
{
capacity /= 1024.0;
capUnits = "Gb";
}
else
{
capUnits = "Mb";
}
reply.printf("%s card mounted in slot %u, capacity %.2f%s", TranslateCardType(sd_mmc_get_type(card)), card, capacity, capUnits);
}
else
{
reply.Clear();
}
}
}
return true;
}
// Unmount the specified SD card, returning true if done, false if needs to be called again.
// If an error occurs, return true with the error message in 'reply'.
bool MassStorage::Unmount(size_t card, StringRef& reply)
{
if (card >= NumSdCards)
{
reply.copy("SD card number out of range");
return true;
}
platform->InvalidateFiles(&fileSystems[card]);
f_mount(card, NULL);
sd_mmc_unmount(card);
isMounted[card] = false;
reply.Clear();
return true;
}
// Check if the drive referenced in the specified path is mounted. Return true if it is.
// Ideally we would try to mount it if it is not, however mounting a drive can take a long time, and the functions that call this are expected to execute quickly.
bool MassStorage::CheckDriveMounted(const char* path)
{
unsigned int card;
if (strlen(path) >= 2 && isDigit(path[0]) && path[1] == ':')
{
card = path[0] - '0';
}
else
{
card = 0;
}
return card < NumSdCards && isMounted[card];
}
/*static*/ time_t MassStorage::ConvertTimeStamp(uint16_t fdate, uint16_t ftime)
{
struct tm timeInfo;
memset(&timeInfo, 0, sizeof(timeInfo));
timeInfo.tm_year = (fdate >> 9) + 80;
const uint16_t month = (fdate >> 5) & 0x0F;
timeInfo.tm_mon = (month == 0) ? month : month - 1; // month is 1..12 in FAT but 0..11 in struct tm
timeInfo.tm_mday = max<int>(fdate & 0x1F, 1);
timeInfo.tm_hour = (ftime >> 11) & 0x1F;
timeInfo.tm_min = (ftime >> 5) & 0x3F;
timeInfo.tm_sec = ftime & 0x1F;
timeInfo.tm_isdst = 0;
return mktime(&timeInfo);
}
// End
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