gpsp/3ds/3ds_utils.c

93 lines
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C
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#include "3ds.h"
#include "libkhax/khax.h"
static int ninjhax_version = 0;
typedef s32 (*ctr_callback_type)(void);
static void ctr_enable_all_svc_kernel(void)
{
__asm__ volatile("cpsid aif");
u32* svc_access_control = *(*(u32***)0xFFFF9000 + 0x22) - 0x6;
svc_access_control[0]=0xFFFFFFFE;
svc_access_control[1]=0xFFFFFFFF;
svc_access_control[2]=0xFFFFFFFF;
svc_access_control[3]=0x3FFFFFFF;
}
static void ctr_invalidate_ICache_kernel(void)
{
__asm__ volatile(
"cpsid aif\n\t"
"mov r0, #0\n\t"
"mcr p15, 0, r0, c7, c5, 0\n\t");
}
static void ctr_flush_DCache_kernel(void)
{
__asm__ volatile(
"cpsid aif\n\t"
"mov r0, #0\n\t"
"mcr p15, 0, r0, c7, c10, 0\n\t");
}
static void ctr_enable_all_svc(void)
{
svcBackdoor((ctr_callback_type)ctr_enable_all_svc_kernel);
}
void ctr_invalidate_ICache(void)
{
// __asm__ volatile("svc 0x2E\n\t");
svcBackdoor((ctr_callback_type)ctr_invalidate_ICache_kernel);
}
void ctr_flush_DCache(void)
{
// __asm__ volatile("svc 0x4B\n\t");
svcBackdoor((ctr_callback_type)ctr_flush_DCache_kernel);
}
void ctr_flush_invalidate_cache(void)
{
ctr_flush_DCache();
ctr_invalidate_ICache();
}
int ctr_svchack_init(void)
{
extern unsigned int __service_ptr;
if(__service_ptr)
{
if(hbInit() == 0)
{
/* ninjhax 1.0 */
ninjhax_version = 1;
hbExit();
khaxInit();
return 1;
}
ninjhax_version = 2;
return 0;
}
/* CFW */
ninjhax_version = 0;
ctr_enable_all_svc();
return 1;
}
void ctr_svchack_exit(void)
{
if (ninjhax_version == 1)
khaxExit();
}