usbloadergx/source/mload/mload.c

598 lines
14 KiB
C
Raw Normal View History

/* mload.c (for PPC) (c) 2009, Hermes
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "mload.h"
#include "dip_plugin.h"
#include <malloc.h>
#include "gecko.h"
static const char mload_fs[] ATTRIBUTE_ALIGN( 32 ) = "/dev/mload";
//static u32 patch_datas[8] ATTRIBUTE_ALIGN(32);
static s32 mload_fd = -1;
static s32 hid = -1;
//static data_elf my_data_elf;
//static int thread_id = -1;
//void *external_ehcmodule= NULL;
//int size_external_ehcmodule=0;
/*--------------------------------------------------------------------------------------------------------------*/
// to init/test if the device is running
int mload_init()
{
int n;
if ( hid < 0 ) hid = iosCreateHeap( 0x800 );
if ( hid < 0 )
{
if ( mload_fd >= 0 )
IOS_Close( mload_fd );
mload_fd = -1;
return hid;
}
if ( mload_fd >= 0 )
{
return 0;
}
for ( n = 0; n < 20; n++ ) // try 5 seconds
{
mload_fd = IOS_Open( mload_fs, 0 );
if ( mload_fd >= 0 ) break;
usleep( 250*1000 );
}
if ( mload_fd < 0 )
{
if ( hid >= 0 )
{
iosDestroyHeap( hid );
hid = -1;
}
}
return mload_fd;
}
/*--------------------------------------------------------------------------------------------------------------*/
// to close the device (remember call it when rebooting the IOS!)
int mload_close()
{
int ret;
if ( hid >= 0 )
{
iosDestroyHeap( hid );
hid = -1;
}
if ( mload_fd < 0 ) return -1;
ret = IOS_Close( mload_fd );
mload_fd = -1;
return ret;
}
/*--------------------------------------------------------------------------------------------------------------*/
// to get the thread id of mload
int mload_get_thread_id()
{
int ret;
if ( mload_init() < 0 ) return -1;
ret = IOS_IoctlvFormat( hid, mload_fd, MLOAD_MLOAD_THREAD_ID, ":" );
return ret;
}
/*--------------------------------------------------------------------------------------------------------------*/
// get the base and the size of the memory readable/writable to load modules
int mload_get_load_base( u32 *starlet_base, int *size )
{
int ret;
if ( mload_init() < 0 ) return -1;
ret = IOS_IoctlvFormat( hid, mload_fd, MLOAD_GET_LOAD_BASE, ":ii", starlet_base, size );
return ret;
}
/*--------------------------------------------------------------------------------------------------------------*/
// load and run a module from starlet (it need to allocate MEM2 to send the elf file)
// the module must be a elf made with stripios
int mload_module( void *addr, int len )
{
int ret;
void *buf = NULL;
if ( mload_init() < 0 ) return -1;
if ( hid >= 0 )
{
iosDestroyHeap( hid );
hid = -1;
}
hid = iosCreateHeap( len + 0x800 );
if ( hid < 0 ) return hid;
buf = iosAlloc( hid, len );
if ( !buf ) {ret = -1; goto out;}
memcpy( buf, addr, len );
ret = IOS_IoctlvFormat( hid, mload_fd, MLOAD_LOAD_MODULE, ":d", buf, len );
if ( ret < 0 ) goto out;
ret = IOS_IoctlvFormat( hid, mload_fd, MLOAD_RUN_MODULE, ":" );
if ( ret < 0 ) {ret = -666; goto out;}
out:
if ( hid >= 0 )
{
iosDestroyHeap( hid );
hid = -1;
}
return ret;
}
/*--------------------------------------------------------------------------------------------------------------*/
// load a module from the PPC
// the module must be a elf made with stripios
int mload_elf( void *my_elf, data_elf *data_elf )
{
int n, m;
int p;
u8 *adr;
u32 elf = ( u32 ) my_elf;
if ( elf & 3 ) return -1; // aligned to 4 please!
elfheader *head = ( void * ) elf;
elfphentry *entries;
if ( head->ident0 != 0x7F454C46 ) return -1;
if ( head->ident1 != 0x01020161 ) return -1;
if ( head->ident2 != 0x01000000 ) return -1;
p = head->phoff;
data_elf->start = ( void * ) head->entry;
for ( n = 0; n < head->phnum; n++ )
{
entries = ( void * ) ( elf + p );
p += sizeof( elfphentry );
if ( entries->type == 4 )
{
adr = ( void * ) ( elf + entries->offset );
if ( getbe32( 0 ) != 0 ) return -2; // bad info (sure)
for ( m = 4; m < entries->memsz; m += 8 )
{
switch ( getbe32( m ) )
{
case 0x9:
data_elf->start = ( void * ) getbe32( m + 4 );
break;
case 0x7D:
data_elf->prio = getbe32( m + 4 );
break;
case 0x7E:
data_elf->size_stack = getbe32( m + 4 );
break;
case 0x7F:
data_elf->stack = ( void * ) ( getbe32( m + 4 ) );
break;
}
}
}
else if ( entries->type == 1 && entries->memsz != 0 && entries->vaddr != 0 )
{
if ( mload_memset( ( void * ) entries->vaddr, 0, entries->memsz ) < 0 ) return -1;
if ( mload_seek( entries->vaddr, SEEK_SET ) < 0 ) return -1;
if ( mload_write( ( void * ) ( elf + entries->offset ), entries->filesz ) < 0 ) return -1;
}
}
return 0;
}
/*--------------------------------------------------------------------------------------------------------------*/
// run one thread (you can use to load modules or binary files)
int mload_run_thread( void *starlet_addr, void *starlet_top_stack, int stack_size, int priority )
{
int ret;
if ( mload_init() < 0 ) return -1;
ret = IOS_IoctlvFormat( hid, mload_fd, MLOAD_RUN_THREAD, "iiii:", starlet_addr, starlet_top_stack, stack_size, priority );
return ret;
}
/*--------------------------------------------------------------------------------------------------------------*/
// stops one starlet thread
int mload_stop_thread( int id )
{
int ret;
if ( mload_init() < 0 ) return -1;
ret = IOS_IoctlvFormat( hid, mload_fd, MLOAD_STOP_THREAD, "i:", id );
return ret;
}
/*--------------------------------------------------------------------------------------------------------------*/
// continue one stopped starlet thread
int mload_continue_thread( int id )
{
int ret;
if ( mload_init() < 0 ) return -1;
ret = IOS_IoctlvFormat( hid, mload_fd, MLOAD_CONTINUE_THREAD, "i:", id );
return ret;
}
/*--------------------------------------------------------------------------------------------------------------*/
// fix starlet address to read/write (uses SEEK_SET, etc as mode)
int mload_seek( int offset, int mode )
{
if ( mload_init() < 0 ) return -1;
return IOS_Seek( mload_fd, offset, mode );
}
/*--------------------------------------------------------------------------------------------------------------*/
// read bytes from starlet (it update the offset)
int mload_read( void* buf, u32 size )
{
if ( mload_init() < 0 ) return -1;
return IOS_Read( mload_fd, buf, size );
}
/*--------------------------------------------------------------------------------------------------------------*/
// write bytes from starlet (it update the offset)
int mload_write( const void * buf, u32 size )
{
if ( mload_init() < 0 ) return -1;
return IOS_Write( mload_fd, buf, size );
}
/*--------------------------------------------------------------------------------------------------------------*/
// fill a block (similar to memset)
int mload_memset( void *starlet_addr, int set, int len )
{
int ret;
if ( mload_init() < 0 ) return -1;
ret = IOS_IoctlvFormat( hid, mload_fd, MLOAD_MEMSET, "iii:", starlet_addr, set, len );
return ret;
}
/*--------------------------------------------------------------------------------------------------------------*/
// get the ehci datas ( ehcmodule.elf uses this address)
void * mload_get_ehci_data()
{
int ret;
if ( mload_init() < 0 ) return NULL;
ret = IOS_IoctlvFormat( hid, mload_fd, MLOAD_GET_EHCI_DATA, ":" );
if ( ret < 0 ) return NULL;
return ( void * ) ret;
}
/*--------------------------------------------------------------------------------------------------------------*/
// set the dev/es ioctlv in routine
int mload_set_ES_ioctlv_vector( void *starlet_addr )
{
int ret;
if ( mload_init() < 0 ) return -1;
ret = IOS_IoctlvFormat( hid, mload_fd, MLOAD_SET_ES_IOCTLV, "i:", starlet_addr );
return ret;
}
int mload_getw( const void * addr, u32 *dat )
{
int ret;
if ( mload_init() < 0 ) return -1;
ret = IOS_IoctlvFormat( hid, mload_fd, MLOAD_GETW, "i:i", addr, dat );
return ret;
}
int mload_geth( const void * addr, u16 *dat )
{
int ret;
if ( mload_init() < 0 ) return -1;
ret = IOS_IoctlvFormat( hid, mload_fd, MLOAD_GETH, "i:h", addr, dat );
return ret;
}
int mload_getb( const void * addr, u8 *dat )
{
int ret;
if ( mload_init() < 0 ) return -1;
ret = IOS_IoctlvFormat( hid, mload_fd, MLOAD_GETB, "i:b", addr, dat );
return ret;
}
int mload_setw( const void * addr, u32 dat )
{
int ret;
if ( mload_init() < 0 ) return -1;
ret = IOS_IoctlvFormat( hid, mload_fd, MLOAD_SETW, "ii:", addr, dat );
return ret;
}
int mload_seth( const void * addr, u16 dat )
{
int ret;
if ( mload_init() < 0 ) return -1;
ret = IOS_IoctlvFormat( hid, mload_fd, MLOAD_SETH, "ih:", addr, dat );
return ret;
}
int mload_setb( const void * addr, u8 dat )
{
int ret;
if ( mload_init() < 0 ) return -1;
ret = IOS_IoctlvFormat( hid, mload_fd, MLOAD_SETB, "ib:", addr, dat );
return ret;
}
/*--------------------------------------------------------------------------------------------------------------*/
// to get log buffer
// this function return the size of the log buffer and prepare it to read with mload_read() the datas
int mload_get_log()
{
int ret;
if ( mload_init() < 0 ) return -1;
ret = IOS_IoctlvFormat( hid, mload_fd, MLOAD_GET_LOG, ":" );
return ret;
}
/*--------------------------------------------------------------------------------------------------------------*/
// to get IOS base for dev/es to create the cIOS
int mload_get_IOS_base()
{
int ret;
if ( mload_init() < 0 ) return -1;
ret = IOS_IoctlvFormat( hid, mload_fd, MLOAD_GET_IOS_BASE, ":" );
return ret;
}
/*
int load_ehc_module()
{
int is_ios=0;
FILE *fp;
if(!external_ehcmodule)
{
fp=fopen("SD:/apps/usbloader_gx/ehcmodule.elf","rb");
if(fp==NULL)
fp=fopen("SD:/apps/usbloadergx/ehcmodule.elf","rb");
if(fp!=NULL)
{
fseek(fp, 0, SEEK_END);
size_external_ehcmodule = ftell(fp);
external_ehcmodule = memalign(32, size_external_ehcmodule);
if(!external_ehcmodule)
{fclose(fp);}
else
{
fseek(fp, 0, SEEK_SET);
if(fread(external_ehcmodule,1, size_external_ehcmodule ,fp)!=size_external_ehcmodule)
{free(external_ehcmodule); external_ehcmodule=NULL;}
fclose(fp);
}
}
}
if(!external_ehcmodule)
{
if(mload_init()<0) return -1;
if (IOS_GetRevision() == 4) {
gprintf("Loading ehcmodule v4\n");
mload_elf((void *) ehcmodule_frag_v4_bin, &my_data_elf);
} else if (IOS_GetRevision() == 0) { // 0? Strange value for v5 ehcmodule
gprintf("Loading ehcmodule v5\n");
mload_elf((void *) ehcmodule_frag_v5_bin, &my_data_elf);
}
thread_id = mload_run_thread(my_data_elf.start, my_data_elf.stack, my_data_elf.size_stack, my_data_elf.prio);
if(thread_id < 0) return -1;
}
else
{
if(mload_init()<0) return -1;
mload_elf((void *) external_ehcmodule, &my_data_elf);
thread_id = mload_run_thread(my_data_elf.start, my_data_elf.stack, my_data_elf.size_stack, my_data_elf.prio);
if(thread_id<0) return -1;
}
usleep(350*1000);
// Test for IOS
mload_seek(0x20207c84, SEEK_SET);
mload_read(patch_datas, 4);
if(patch_datas[0]==0x6e657665)
{
is_ios=38;
}
else
{
is_ios=36;
}
if(is_ios==36)
{
// IOS 36
memcpy(ios_36, dip_plugin, 4); // copy the entry_point
memcpy((void *) dip_plugin, ios_36, 4*10); // copy the adresses from the array
mload_seek(0x1377E000, SEEK_SET); // copy dip_plugin in the starlet
mload_write(dip_plugin,size_dip_plugin);
// enables DIP plugin
mload_seek(0x20209040, SEEK_SET);
mload_write(ios_36, 4);
}
if(is_ios==38)
{
// IOS 38
memcpy(ios_38, dip_plugin, 4); // copy the entry_point
memcpy((void *) dip_plugin, ios_38, 4*10); // copy the adresses from the array
mload_seek(0x1377E000, SEEK_SET); // copy dip_plugin in the starlet
mload_write(dip_plugin,size_dip_plugin);
// enables DIP plugin
mload_seek(0x20208030, SEEK_SET);
mload_write(ios_38, 4);
}
mload_close();
return 0;
}
int patch_cios_data() {
patch_datas[0]=*((u32 *) (dip_plugin+16*4));
mload_set_ES_ioctlv_vector((void *) patch_datas[0]);
return 1;
}
*/