static struct shortcut* get_shortcut(int index)
{
int handle_count, handle_index;
int current_handle = first_handle;
struct shortcut_handle *h = NULL;
if (first_handle == 0)
{
first_handle = core_alloc("shortcuts_head", sizeof(struct shortcut_handle));
if (first_handle <= 0)
return NULL;
h = core_get_data(first_handle);
h->next_handle = 0;
current_handle = first_handle;
}
handle_count = index/SHORTCUTS_PER_HANDLE + 1;
handle_index = index%SHORTCUTS_PER_HANDLE;
do {
h = core_get_data(current_handle);
current_handle = h->next_handle;
handle_count--;
} while (handle_count > 0 && current_handle > 0);
if (handle_count > 0 && handle_index == 0)
{
char buf[32];
snprintf(buf, sizeof buf, "shortcuts_%d", index/SHORTCUTS_PER_HANDLE);
h->next_handle = core_alloc(buf, sizeof(struct shortcut_handle));
if (h->next_handle <= 0)
return NULL;
h = core_get_data(h->next_handle);
h->next_handle = 0;
}
return &h->shortcuts[handle_index];
}
static void pbe_buffer_alloc(void)
{
if (handle > 0)
return; /* already-allocated */
unsigned int total_len = (B0_SIZE + B2_SIZE + B3_SIZE) * 2;
handle = core_alloc("dsp_pbe_buffer",sizeof(int32_t) * total_len);
if (handle < 0)
{
pbe_strength = 0;
return;
}
memset(core_get_data(handle),0,sizeof(int32_t) * total_len);
}
static void surround_buffer_alloc(void)
{
if (handle > 0)
return; /* already-allocated */
unsigned int total_len = B0_DLY + B2_DLY + BB_DLY + HH_DLY + CL_DLY;
handle = core_alloc("dsp_surround_buffer",sizeof(int32_t) * total_len);
if (handle < 0)
{
surround_enabled = false;
return;
}
memset(core_get_data(handle),0,sizeof(int32_t) * total_len);
}
void shortcuts_init(void)
{
int fd;
char buf[512];
struct shortcut *param = NULL;
struct shortcut_handle *h;
shortcut_count = 0;
fd = open_utf8(SHORTCUTS_FILENAME, O_RDONLY);
if (fd < 0)
return;
first_handle = core_alloc("shortcuts_head", sizeof(struct shortcut_handle));
if (first_handle <= 0)
return;
h = core_get_data(first_handle);
h->next_handle = 0;
fast_readline(fd, buf, sizeof buf, ¶m, readline_cb);
close(fd);
if (param && verify_shortcut(param))
shortcut_count++;
}
static void cfs_init(void)
{
struct main_header *hdr;
struct cfs_header *cfs;
struct cfs_inode *root_inode, *vfat_inode, *inode;
struct cfs_direntry *root_direntry, *vfat_direntry;
struct cfs_direntry_item *root_direntry_items, *vfat_direntry_items;
unsigned int i, j, k, vfat_inode_nr=0, vfat_inodes_nr[10], vfat_sector_count;
unsigned char sector[512];
static unsigned int vfat_data[2][0x8000];
static unsigned char sector2[0x8000];
if(cfs_inited)
return;
/* Read MBLK */
_ata_read_sectors(0, 1, §or);
hdr = (struct main_header*)§or;
logf("CFS is at 0x%x [0x%x]", CFS_START, CFS_START/512);
/* Read CFS header */
_ata_read_sectors(CFS_START/512, 64, §or2);
cfs = (struct cfs_header*)§or2;
logf("First inode = 0x%x", cfs->first_inode);
/* Read root inode */
_ata_read_sectors(CFS_CLUSTER2CLUSTER(cfs->first_inode), 64, §or2);
root_inode = (struct cfs_inode*)§or2;
logf("Root inode = 0x%x", root_inode);
logf("0x%x 0x%x", CFS_CLUSTER2CLUSTER(root_inode->first_class_chain[0]), root_inode->first_class_chain[0]);
/* Read root inode's first sector */
_ata_read_sectors(CFS_CLUSTER2CLUSTER(root_inode->first_class_chain[0]), 64, §or2);
root_direntry = (struct cfs_direntry*)§or2;
root_direntry_items = (struct cfs_direntry_item*)(§or2+sizeof(struct cfs_direntry));
logf("0x%x", root_direntry->identifier);
logf("%d", root_direntry->items);
/* Search VFAT inode */
for(i=0; i < root_direntry->items; i++)
{
if(root_direntry_items[i].inode_number != 0)
{
//logf(" * [%s] at 0x%x", ucs2letostring(&root_direntry_items[i].string[0]), root_direntry_items[i].inode_number);
if(strcmp(ucs2letostring(&root_direntry_items[i].string[0]), "VFAT") == 0)
vfat_inode_nr = root_direntry_items[i].inode_number;
}
}
logf("VFAT inode = 0x%x", vfat_inode_nr);
if(vfat_inode_nr != 0)
{
/* Read VFAT inode */
_ata_read_sectors(CFS_CLUSTER2CLUSTER(vfat_inode_nr), 64, §or2);
vfat_inode = (struct cfs_inode*)§or2;
/* Read VFAT inode's first sector */
_ata_read_sectors(CFS_CLUSTER2CLUSTER(vfat_inode->first_class_chain[0]), 64, §or2);
vfat_direntry = (struct cfs_direntry*)§or2;
vfat_direntry_items = (struct cfs_direntry_item*)(§or2+sizeof(struct cfs_direntry));
/* Search for VFAT's subinodes */
for(i=0; i < vfat_direntry->items; i++)
{
logf(" * [%s] at 0x%x\n", ucs2letostring(&vfat_direntry_items[i].string[0]), vfat_direntry_items[i].inode_number);
if(i > 0)
vfat_inodes_nr[i-1] = vfat_direntry_items[i].inode_number;
}
/* Determine size of VFAT file */
_ata_read_sectors(CFS_CLUSTER2CLUSTER(vfat_inodes_nr[1]), 1, §or);
inode = (struct cfs_inode*)§or;
#ifndef BOOTLOADER
sectors_handle = core_alloc("ata sectors", VFAT_SECTOR_SIZE(inode->filesize));
unsigned long *sectors = core_get_data(sectors_handle);
#else
static unsigned long _sector[VFAT_SECTOR_SIZE(1024*1024*1024)]; /* 1GB guess */
sectors = _sector;
#endif
logf("VFAT file size: 0x%x", inode->filesize);
/* Clear data sectors */
memset(§ors, 0, VFAT_SECTOR_SIZE(inode->filesize)*sizeof(unsigned long));
/* Read all data sectors' addresses in memory */
vfat_sector_count = 0;
for(i=0; vfat_inodes_nr[i] != 0; i++)
{
_ata_read_sectors(CFS_CLUSTER2CLUSTER(vfat_inodes_nr[i]), 1, §or);
inode = (struct cfs_inode*)§or;
/* Read second & third class chain */
_ata_read_sectors(CFS_CLUSTER2CLUSTER(inode->second_class_chain_first_cluster), 64, &vfat_data[0]);
_ata_read_sectors(CFS_CLUSTER2CLUSTER(inode->second_class_chain_second_cluster), 64, &vfat_data[1]);
/* First class chain */
#ifndef BOOTLOADER
sectors = core_get_data(sectors_handle);
#endif
for(j=0; j<12; j++)
{
if( (inode->first_class_chain[j] & 0xFFFF) != 0xFFFF &&
inode->first_class_chain[j] != 0
)
sectors[vfat_sector_count++] = inode->first_class_chain[j];
}
/* Second class chain */
#ifndef BOOTLOADER
sectors = core_get_data(sectors_handle);
#endif
for(j=0; j<0x8000/4; j++)
{
if( (vfat_data[0][j] & 0xFFFF) != 0xFFFF &&
vfat_data[0][j] != 0
)
sectors[vfat_sector_count++] = vfat_data[0][j];
}
/* Third class chain */
for(j=0; j<0x8000/4; j++)
{
if( (vfat_data[1][j] & 0xFFFF) != 0xFFFF &&
vfat_data[1][j] != 0
)
{
memset(&vfat_data[0], 0, 0x8000*sizeof(unsigned int));
/* Read third class subchain(s) */
_ata_read_sectors(CFS_CLUSTER2CLUSTER(vfat_data[1][j]), 64, &vfat_data[0]);
#ifndef BOOTLOADER
sectors = core_get_data(sectors_handle);
#endif
for(k=0; k<0x8000/4; k++)
{
if( (vfat_data[0][k] & 0xFFFF) != 0xFFFF &&
vfat_data[0][k] != 0
)
sectors[vfat_sector_count++] = vfat_data[0][k];
}
}
}
}
logf("Sector count: %d 0x%x", vfat_sector_count, vfat_sector_count);
}
else
panicf("Cannot find virtual FAT filesystem!");
cfs_inited = true;
}
