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Diffstat (limited to 'c/src/lib/libbsp/arm/nds/libfat/source/libfat.c')
| -rw-r--r-- | c/src/lib/libbsp/arm/nds/libfat/source/libfat.c | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/arm/nds/libfat/source/libfat.c b/c/src/lib/libbsp/arm/nds/libfat/source/libfat.c new file mode 100644 index 0000000000..f4321fc0d7 --- /dev/null +++ b/c/src/lib/libbsp/arm/nds/libfat/source/libfat.c @@ -0,0 +1,144 @@ +/* + libfat.c + Simple functionality for startup, mounting and unmounting of FAT-based 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: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + 2. Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation and/or + other materials provided with the distribution. + 3. The name of the author may not be used to endorse or promote products derived + from this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY + AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, + EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + + 2006-07-11 - Chishm + * Original release + + 2006-08-13 - Chishm + * Moved all externally visible directory related functions to fatdir + + 2006-08-14 - Chishm + * Added extended devoptab_t functions + + 2007-01-10 - Chishm + * fatInit now sets the correct path when setAsDefaultDevice + + 2007-01-11 - Chishm + * Added missing #include <unistd.h> +*/ + +#include <sys/iosupport.h> +#include <unistd.h> + +#include "common.h" +#include "partition.h" +#include "fatfile.h" +#include "fatdir.h" + +#define GBA_DEFAULT_CACHE_PAGES 2 +#define NDS_DEFAULT_CACHE_PAGES 8 + + +const devoptab_t dotab_fat = { + "fat", + sizeof (FILE_STRUCT), + _FAT_open_r, + _FAT_close_r, + _FAT_write_r, + _FAT_read_r, + _FAT_seek_r, + _FAT_fstat_r, + _FAT_stat_r, + _FAT_link_r, + _FAT_unlink_r, + _FAT_chdir_r, + _FAT_rename_r, + _FAT_mkdir_r, + sizeof (DIR_STATE_STRUCT), + _FAT_diropen_r, + _FAT_dirreset_r, + _FAT_dirnext_r, + _FAT_dirclose_r +}; + +bool fatInit (u32 cacheSize, bool setAsDefaultDevice) { +#ifdef NDS + bool slot1Device, slot2Device; + + // Try mounting both slots + slot1Device = _FAT_partition_mount (PI_SLOT_1, cacheSize); + slot2Device = _FAT_partition_mount (PI_SLOT_2, cacheSize); + + // Choose the default device + if (slot1Device) { + _FAT_partition_setDefaultInterface (PI_SLOT_1); + } else if (slot2Device) { + _FAT_partition_setDefaultInterface (PI_SLOT_2); + } else { + return false; + } + +#else // not defined NDS + bool cartSlotDevice; + + cartSlotDevice = _FAT_partition_mount (PI_CART_SLOT, cacheSize); + + if (cartSlotDevice) { + _FAT_partition_setDefaultInterface (PI_CART_SLOT); + } else { + return false; + } + +#endif // defined NDS + + AddDevice (&dotab_fat); + + if (setAsDefaultDevice) { + chdir ("fat:/"); + } + + return true; +} + +bool fatInitDefault (void) { +#ifdef NDS + return fatInit (NDS_DEFAULT_CACHE_PAGES, true); +#else + return fatInit (GBA_DEFAULT_CACHE_PAGES, true); +#endif +} + +bool fatMountNormalInterface (PARTITION_INTERFACE partitionNumber, u32 cacheSize) { + return _FAT_partition_mount (partitionNumber, cacheSize); +} + +bool fatMountCustomInterface (const IO_INTERFACE* device, u32 cacheSize) { + return _FAT_partition_mountCustomInterface (device, cacheSize); +} + +bool fatUnmount (PARTITION_INTERFACE partitionNumber) { + return _FAT_partition_unmount (partitionNumber); +} + + +bool fatUnsafeUnmount (PARTITION_INTERFACE partitionNumber) { + return _FAT_partition_unsafeUnmount (partitionNumber); +} + +bool fatSetDefaultInterface (PARTITION_INTERFACE partitionNumber) { + return _FAT_partition_setDefaultInterface (partitionNumber); +} |