mirror of
https://github.com/wiiu-env/libfat.git
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154 lines
4.1 KiB
C
154 lines
4.1 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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2007-10-25 - Chishm
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* Added statvfs functionality
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*/
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#include <sys/iosupport.h>
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#include <unistd.h>
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#include <string.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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#ifdef GBA
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#define DEFAULT_CACHE_PAGES 2
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#else
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#define DEFAULT_CACHE_PAGES 8
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#endif
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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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_FAT_statvfs_r
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};
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bool fatInit (u32 cacheSize, bool setAsDefaultDevice) {
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int i;
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bool device = false, setDefault = false;
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if ( PI_MAX_PARTITIONS == 1 ) {
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if ( _FAT_partition_mount ( 0 , cacheSize) ) {
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_FAT_partition_setDefaultInterface (0);
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} else {
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return false;
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}
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} else {
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for ( i = 1; i < PI_MAX_PARTITIONS; i++ ) {
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device = _FAT_partition_mount ( i , cacheSize);
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if ( device && !setDefault ) {
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_FAT_partition_setDefaultInterface (i);
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setDefault = true;
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}
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}
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if ( !setDefault ) return false;
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}
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AddDevice (&dotab_fat);
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if (setAsDefaultDevice) {
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char filePath[MAXPATHLEN * 2] = "fat:/";
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#ifndef GBA
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if ( __system_argv->argvMagic == ARGV_MAGIC && __system_argv->argc >= 1 ) {
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char ch, *ptr = filePath, *lastSlash = NULL;
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strcpy(filePath, __system_argv->argv[0]);
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do {
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ch = *(ptr);
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if (ch == '/') lastSlash=ptr;
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ptr++;
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} while (ch);
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if ( NULL != lastSlash) *lastSlash = 0;
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}
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#endif
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chdir (filePath);
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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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return fatInit (DEFAULT_CACHE_PAGES, true);
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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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