| 1 | |
| 2 | #include "3ds.h" |
| 3 | #include "3ds_utils.h" |
| 4 | |
| 5 | typedef s32 (*ctr_callback_type)(void); |
| 6 | |
| 7 | static void ctr_enable_all_svc_kernel(void) |
| 8 | { |
| 9 | __asm__ volatile("cpsid aif"); |
| 10 | |
| 11 | u32* svc_access_control = *(*(u32***)0xFFFF9000 + 0x22) - 0x6; |
| 12 | |
| 13 | svc_access_control[0]=0xFFFFFFFE; |
| 14 | svc_access_control[1]=0xFFFFFFFF; |
| 15 | svc_access_control[2]=0xFFFFFFFF; |
| 16 | svc_access_control[3]=0x3FFFFFFF; |
| 17 | } |
| 18 | |
| 19 | |
| 20 | static void ctr_invalidate_ICache_kernel(void) |
| 21 | { |
| 22 | __asm__ volatile( |
| 23 | "cpsid aif\n\t" |
| 24 | "mov r0, #0\n\t" |
| 25 | "mcr p15, 0, r0, c7, c5, 0\n\t"); |
| 26 | } |
| 27 | |
| 28 | static void ctr_flush_DCache_kernel(void) |
| 29 | { |
| 30 | __asm__ volatile( |
| 31 | "cpsid aif\n\t" |
| 32 | "mov r0, #0\n\t" |
| 33 | "mcr p15, 0, r0, c7, c10, 0\n\t"); |
| 34 | |
| 35 | } |
| 36 | |
| 37 | |
| 38 | static void ctr_enable_all_svc(void) |
| 39 | { |
| 40 | svcBackdoor((ctr_callback_type)ctr_enable_all_svc_kernel); |
| 41 | } |
| 42 | |
| 43 | void ctr_invalidate_ICache(void) |
| 44 | { |
| 45 | // __asm__ volatile("svc 0x2E\n\t"); |
| 46 | svcBackdoor((ctr_callback_type)ctr_invalidate_ICache_kernel); |
| 47 | |
| 48 | } |
| 49 | |
| 50 | void ctr_flush_DCache(void) |
| 51 | { |
| 52 | // __asm__ volatile("svc 0x4B\n\t"); |
| 53 | svcBackdoor((ctr_callback_type)ctr_flush_DCache_kernel); |
| 54 | } |
| 55 | |
| 56 | |
| 57 | void ctr_flush_invalidate_cache(void) |
| 58 | { |
| 59 | ctr_flush_DCache(); |
| 60 | ctr_invalidate_ICache(); |
| 61 | } |
| 62 | |
| 63 | int ctr_svchack_init(void) |
| 64 | { |
| 65 | extern unsigned int __service_ptr; |
| 66 | |
| 67 | if(__service_ptr) |
| 68 | return 0; |
| 69 | |
| 70 | /* CFW */ |
| 71 | ctr_enable_all_svc(); |
| 72 | return 1; |
| 73 | } |
| 74 | |