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