summaryrefslogtreecommitdiffstats
path: root/c/src/lib/libbsp/arm/nds/libfat/source/partition.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--c/src/lib/libbsp/arm/nds/libfat/source/partition.c84
1 files changed, 42 insertions, 42 deletions
diff --git a/c/src/lib/libbsp/arm/nds/libfat/source/partition.c b/c/src/lib/libbsp/arm/nds/libfat/source/partition.c
index 12dab1abf2..9d3862793e 100644
--- a/c/src/lib/libbsp/arm/nds/libfat/source/partition.c
+++ b/c/src/lib/libbsp/arm/nds/libfat/source/partition.c
@@ -4,7 +4,7 @@
on various block devices.
Copyright (c) 2006 Michael "Chishm" Chisholm
-
+
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
@@ -31,7 +31,7 @@
2006-08-10 - Chishm
* Fixed problem when openning files starting with "fat"
-
+
2006-10-28 - Chishm
* _partitions changed to _FAT_partitions to maintain the same style of naming as the functions
*/
@@ -47,7 +47,7 @@
#include "mem_allocate.h"
-/*
+/*
This device name, as known by DevKitPro
*/
const char* DEVICE_NAME = "fat";
@@ -145,7 +145,7 @@ static PARTITION* _FAT_partition_constructor ( const IO_INTERFACE* disc, u32 cac
if (i == 0x1FE) {
for (i=0x1BE; (i < 0x1FE) && (sectorBuffer[i+0x04] == 0x00); i+= 0x10);
}
-
+
// Go to first valid partition
if ( i != 0x1FE) {
// Make sure it found a partition
@@ -171,18 +171,18 @@ static PARTITION* _FAT_partition_constructor ( const IO_INTERFACE* disc, u32 cac
// Store required information about the file system
partition->fat.sectorsPerFat = u8array_to_u16(sectorBuffer, BPB_sectorsPerFAT);
if (partition->fat.sectorsPerFat == 0) {
- partition->fat.sectorsPerFat = u8array_to_u32( sectorBuffer, BPB_FAT32_sectorsPerFAT32);
+ partition->fat.sectorsPerFat = u8array_to_u32( sectorBuffer, BPB_FAT32_sectorsPerFAT32);
}
- partition->numberOfSectors = u8array_to_u16( sectorBuffer, BPB_numSectorsSmall);
+ partition->numberOfSectors = u8array_to_u16( sectorBuffer, BPB_numSectorsSmall);
if (partition->numberOfSectors == 0) {
- partition->numberOfSectors = u8array_to_u32( sectorBuffer, BPB_numSectors);
+ partition->numberOfSectors = u8array_to_u32( sectorBuffer, BPB_numSectors);
}
partition->bytesPerSector = BYTES_PER_READ; // Sector size is redefined to be 512 bytes
partition->sectorsPerCluster = sectorBuffer[BPB_sectorsPerCluster] * u8array_to_u16(sectorBuffer, BPB_bytesPerSector) / BYTES_PER_READ;
partition->bytesPerCluster = partition->bytesPerSector * partition->sectorsPerCluster;
- partition->fat.fatStart = bootSector + u8array_to_u16(sectorBuffer, BPB_reservedSectors);
+ partition->fat.fatStart = bootSector + u8array_to_u16(sectorBuffer, BPB_reservedSectors);
partition->rootDirStart = partition->fat.fatStart + (sectorBuffer[BPB_numFATs] * partition->fat.sectorsPerFat);
partition->dataStart = partition->rootDirStart + (( u8array_to_u16(sectorBuffer, BPB_rootEntries) * DIR_ENTRY_DATA_SIZE) / partition->bytesPerSector);
@@ -205,7 +205,7 @@ static PARTITION* _FAT_partition_constructor ( const IO_INTERFACE* disc, u32 cac
partition->rootDirCluster = FAT16_ROOT_DIR_CLUSTER;
} else {
// Set up for the FAT32 way
- partition->rootDirCluster = u8array_to_u32(sectorBuffer, BPB_FAT32_rootClus);
+ partition->rootDirCluster = u8array_to_u32(sectorBuffer, BPB_FAT32_rootClus);
// Check if FAT mirroring is enabled
if (!(sectorBuffer[BPB_FAT32_extFlags] & 0x80)) {
// Use the active FAT
@@ -218,10 +218,10 @@ static PARTITION* _FAT_partition_constructor ( const IO_INTERFACE* disc, u32 cac
// Set current directory to the root
partition->cwdCluster = partition->rootDirCluster;
-
+
// Check if this disc is writable, and set the readOnly property appropriately
partition->readOnly = !(_FAT_disc_features(disc) & FEATURE_MEDIUM_CANWRITE);
-
+
// There are currently no open files on this partition
partition->openFileCount = 0;
@@ -238,10 +238,10 @@ bool _FAT_partition_mount (PARTITION_INTERFACE partitionNumber, u32 cacheSize) {
#ifdef NDS
int i;
const IO_INTERFACE* disc = NULL;
-
+
if (_FAT_partitions[partitionNumber] != NULL) {
return false;
- }
+ }
switch (partitionNumber) {
case PI_SLOT_1:
@@ -263,7 +263,7 @@ bool _FAT_partition_mount (PARTITION_INTERFACE partitionNumber, u32 cacheSize) {
if (disc == NULL) {
return false;
}
-
+
// See if that disc is already in use, if so, then just copy the partition pointer
for (i = 0; i < MAXIMUM_PARTITIONS; i++) {
if ((_FAT_partitions[i] != NULL) && (_FAT_partitions[i]->disc == disc)) {
@@ -280,27 +280,27 @@ bool _FAT_partition_mount (PARTITION_INTERFACE partitionNumber, u32 cacheSize) {
#else // not defined NDS
const IO_INTERFACE* disc = NULL;
-
+
if (_FAT_partitions[partitionNumber] != NULL) {
return false;
- }
+ }
// Only ever one partition on GBA
disc = _FAT_disc_gbaSlotFindInterface ();
_FAT_partitions[partitionNumber] = _FAT_partition_constructor (disc, cacheSize);
-
+
#endif // defined NDS
return true;
}
bool _FAT_partition_mountCustomInterface (const IO_INTERFACE* device, u32 cacheSize) {
-#ifdef NDS
+#ifdef NDS
int i;
-
+
if (_FAT_partitions[PI_CUSTOM] != NULL) {
return false;
- }
+ }
if (device == NULL) {
return false;
@@ -319,11 +319,11 @@ bool _FAT_partition_mountCustomInterface (const IO_INTERFACE* device, u32 cacheS
if (_FAT_partitions[PI_CUSTOM] == NULL) {
return false;
}
-
+
#else // not defined NDS
if (_FAT_partitions[PI_CART_SLOT] != NULL) {
return false;
- }
+ }
if (device == NULL) {
return false;
@@ -331,7 +331,7 @@ bool _FAT_partition_mountCustomInterface (const IO_INTERFACE* device, u32 cacheS
// Only ever one partition on GBA
_FAT_partitions[PI_CART_SLOT] = _FAT_partition_constructor (device, cacheSize);
-
+
#endif // defined NDS
return true;
@@ -342,39 +342,39 @@ bool _FAT_partition_setDefaultInterface (PARTITION_INTERFACE partitionNumber) {
if ((partitionNumber < 1) || (partitionNumber >= MAXIMUM_PARTITIONS)) {
return false;
}
-
+
if (_FAT_partitions[partitionNumber] == NULL) {
return false;
}
-
+
_FAT_partitions[PI_DEFAULT] = _FAT_partitions[partitionNumber];
-#endif
+#endif
return true;
}
bool _FAT_partition_setDefaultPartition (PARTITION* partition) {
#ifdef NDS // Can only set the default partition when there is more than 1, so doesn't apply to GBA
int i;
-
+
if (partition == NULL) {
return false;
}
-
+
// Ensure that this device is already in the list
for (i = 1; i < MAXIMUM_PARTITIONS; i++) {
if (_FAT_partitions[i] == partition) {
break;
}
}
-
+
// It wasn't in the list, so fail
if (i == MAXIMUM_PARTITIONS) {
return false;
- }
-
+ }
+
// Change the default partition / device to this one
_FAT_partitions[PI_DEFAULT] = partition;
-
+
#endif
return true;
}
@@ -382,23 +382,23 @@ bool _FAT_partition_setDefaultPartition (PARTITION* partition) {
bool _FAT_partition_unmount (PARTITION_INTERFACE partitionNumber) {
int i;
PARTITION* partition = _FAT_partitions[partitionNumber];
-
+
if (partition == NULL) {
return false;
}
-
+
if (partition->openFileCount > 0) {
// There are still open files that need closing
return false;
}
-
+
// Remove all references to this partition
for (i = 0; i < MAXIMUM_PARTITIONS; i++) {
if (_FAT_partitions[i] == partition) {
_FAT_partitions[i] = NULL;
}
}
-
+
_FAT_partition_destructor (partition);
return true;
}
@@ -406,18 +406,18 @@ bool _FAT_partition_unmount (PARTITION_INTERFACE partitionNumber) {
bool _FAT_partition_unsafeUnmount (PARTITION_INTERFACE partitionNumber) {
int i;
PARTITION* partition = _FAT_partitions[partitionNumber];
-
+
if (partition == NULL) {
return false;
}
-
+
// Remove all references to this partition
for (i = 0; i < MAXIMUM_PARTITIONS; i++) {
if (_FAT_partitions[i] == partition) {
_FAT_partitions[i] = NULL;
}
}
-
+
_FAT_cache_invalidate (partition->cache);
_FAT_partition_destructor (partition);
return true;
@@ -427,7 +427,7 @@ PARTITION* _FAT_partition_getPartitionFromPath (const char* path) {
#ifdef NDS
int namelen;
int partitionNumber;
-
+
// Device name extraction code taken from DevKitPro
namelen = strlen(DEVICE_NAME);
if (strchr (path, ':') == NULL) {
@@ -448,11 +448,11 @@ PARTITION* _FAT_partition_getPartitionFromPath (const char* path) {
// Incorrect device name
return NULL;
}
-
+
if ((partitionNumber < 0) || (partitionNumber >= MAXIMUM_PARTITIONS)) {
return NULL;
}
-
+
return _FAT_partitions[partitionNumber];
#else // not defined NDS
// Only one possible partition on GBA
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-03 06:27:37 +0000