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- #include "3ds_utils.h"
- #define GET_VERSION_MAJOR(version) ((version) >>24)
- typedef int (*ctr_callback_type)(void);
- int srvGetServiceHandle(unsigned int* out, const char* name);
- int svcCloseHandle(unsigned int handle);
- int svcBackdoor(ctr_callback_type);
- int32_t svcGetSystemInfo(int64_t* out, uint32_t type, int32_t param);
- void ctr_clear_cache(void);
- static int has_rosalina;
- void check_rosalina(void) {
- int64_t version;
- uint32_t major;
- has_rosalina = 0;
- if (!svcGetSystemInfo(&version, 0x10000, 0)) {
- major = GET_VERSION_MAJOR(version);
- if (major >= 8)
- has_rosalina = 1;
- }
- }
- static void ctr_enable_all_svc_kernel(void)
- {
- __asm__ volatile("cpsid aif");
- unsigned int* svc_access_control = *(*(unsigned int***)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_enable_all_svc(void)
- {
- svcBackdoor((ctr_callback_type)ctr_enable_all_svc_kernel);
- }
- static void ctr_clean_invalidate_kernel(void)
- {
- __asm__ volatile(
- "mrs r1, cpsr\n"
- "cpsid aif\n" // disable interrupts
- "mov r0, #0\n"
- "mcr p15, 0, r0, c7, c10, 0\n" // clean dcache
- "mcr p15, 0, r0, c7, c10, 4\n" // DSB
- "mcr p15, 0, r0, c7, c5, 0\n" // invalidate icache+BTAC
- "msr cpsr_cx, r1\n" // restore interrupts
- ::: "r0", "r1");
- }
- void ctr_flush_invalidate_cache(void)
- {
- if (has_rosalina) {
- ctr_clear_cache();
- } else {
- // __asm__ volatile("svc 0x2E\n\t");
- // __asm__ volatile("svc 0x4B\n\t");
- svcBackdoor((ctr_callback_type)ctr_clean_invalidate_kernel);
- }
- }
- int ctr_svchack_init(void)
- {
- extern unsigned int __ctr_svchax;
- extern unsigned int __service_ptr;
- if(__ctr_svchax)
- return 1; /* All services have already been enabled */
- if(__service_ptr)
- return 0;
- /* CFW */
- ctr_enable_all_svc();
- return 1;
- }
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