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*updated libntfs (write fix) *updated libfat *lots of changes in the startup code, removed almost everything. This might cause problems for some drives at loading the gamelist and needs to be adjusted later but better this time. more cleanup is needed in main.cpp and will come. *using libogc sd/usb for config loading and reload to cIOS afterwards *added missing boothomebrew stuff pune forgot NOTE: From now on we will be doing a lot of revs which we won't be compiling and releasing. This revs are officially not available for public so don't making issues regarding those revs. Those will be closed right away. We need first to cleanup a lot of crap and update loader to new standards before releasing stuff again.
242 lines
6.2 KiB
C
242 lines
6.2 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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*/
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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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#include "lock.h"
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#include "mem_allocate.h"
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#include "disc.h"
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static 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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_FAT_ftruncate_r,
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_FAT_fsync_r,
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NULL /* Device data */
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};
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bool fatMount (const char* name, const DISC_INTERFACE* interface, sec_t startSector, uint32_t cacheSize, uint32_t SectorsPerPage) {
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PARTITION* partition;
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devoptab_t* devops;
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char* nameCopy;
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if(!name || !interface)
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return false;
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if(!interface->startup())
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return false;
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if(!interface->isInserted())
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return false;
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devops = _FAT_mem_allocate (sizeof(devoptab_t) + strlen(name) + 1);
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if (!devops) {
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return false;
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}
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// Use the space allocated at the end of the devoptab struct for storing the name
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nameCopy = (char*)(devops+1);
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// Initialize the file system
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partition = _FAT_partition_constructor (interface, cacheSize, SectorsPerPage, startSector);
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if (!partition) {
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_FAT_mem_free (devops);
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return false;
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}
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// Add an entry for this device to the devoptab table
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memcpy (devops, &dotab_fat, sizeof(dotab_fat));
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strcpy (nameCopy, name);
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devops->name = nameCopy;
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devops->deviceData = partition;
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AddDevice (devops);
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return true;
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}
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bool fatMountSimple (const char* name, const DISC_INTERFACE* interface) {
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return fatMount (name, interface, 0, DEFAULT_CACHE_PAGES, DEFAULT_SECTORS_PAGE);
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}
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void fatUnmount (const char* name) {
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devoptab_t *devops;
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PARTITION* partition;
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if(!name)
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return;
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devops = (devoptab_t*)GetDeviceOpTab (name);
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if (!devops) {
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return;
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}
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// Perform a quick check to make sure we're dealing with a libfat controlled device
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if (devops->open_r != dotab_fat.open_r) {
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return;
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}
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if (RemoveDevice (name) == -1) {
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return;
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}
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partition = (PARTITION*)devops->deviceData;
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_FAT_partition_destructor (partition);
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_FAT_mem_free (devops);
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}
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bool fatInit (uint32_t cacheSize, bool setAsDefaultDevice) {
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int i;
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int defaultDevice = -1;
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const DISC_INTERFACE *disc;
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for (i = 0;
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_FAT_disc_interfaces[i].name != NULL && _FAT_disc_interfaces[i].getInterface != NULL;
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i++)
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{
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disc = _FAT_disc_interfaces[i].getInterface();
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if (fatMount (_FAT_disc_interfaces[i].name, disc, 0, cacheSize, DEFAULT_SECTORS_PAGE)) {
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// The first device to successfully mount is set as the default
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if (defaultDevice < 0) {
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defaultDevice = i;
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}
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}
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}
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if (defaultDevice < 0) {
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// None of our devices mounted
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return false;
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}
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if (setAsDefaultDevice) {
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char filePath[MAXPATHLEN * 2];
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strcpy (filePath, _FAT_disc_interfaces[defaultDevice].name);
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strcat (filePath, ":/");
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#ifdef ARGV_MAGIC
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if ( __system_argv->argvMagic == ARGV_MAGIC && __system_argv->argc >= 1 && strrchr( __system_argv->argv[0], '/' )!=NULL ) {
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// Check the app's path against each of our mounted devices, to see
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// if we can support it. If so, change to that path.
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for (i = 0;
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_FAT_disc_interfaces[i].name != NULL && _FAT_disc_interfaces[i].getInterface != NULL;
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i++)
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{
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if ( !strncasecmp( __system_argv->argv[0], _FAT_disc_interfaces[i].name,
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strlen(_FAT_disc_interfaces[i].name)))
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{
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char *lastSlash;
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strcpy(filePath, __system_argv->argv[0]);
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lastSlash = strrchr( filePath, '/' );
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if ( NULL != lastSlash) {
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if ( *(lastSlash - 1) == ':') lastSlash++;
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*lastSlash = 0;
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}
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}
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}
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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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void fatGetVolumeLabel (const char* name, char *label) {
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devoptab_t *devops;
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PARTITION* partition;
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char *buf;
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int namelen,i;
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if(!name || !label)
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return;
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namelen = strlen(name);
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buf=(char*)_FAT_mem_allocate(sizeof(char)*namelen+2);
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strcpy(buf,name);
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if (name[namelen-1] == '/') {
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buf[namelen-1]='\0';
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namelen--;
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}
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if (name[namelen-1] != ':') {
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buf[namelen]=':';
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buf[namelen+1]='\0';
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}
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devops = (devoptab_t*)GetDeviceOpTab(buf);
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for(i=0;buf[i]!='\0' && buf[i]!=':';i++);
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if (!devops || strncasecmp(buf,devops->name,i)) {
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free(buf);
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return;
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}
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free(buf);
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// Perform a quick check to make sure we're dealing with a libfat controlled device
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if (devops->open_r != dotab_fat.open_r) {
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return;
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}
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partition = (PARTITION*)devops->deviceData;
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if(!_FAT_directory_getVolumeLabel(partition, label)) {
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strncpy(label,partition->label,11);
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label[11]='\0';
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}
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if(!strncmp(label, "NO NAME", 7)) label[0]='\0';
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}
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