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(3DS) the parallax layer register can be written to from userland with

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GSPGPU_WriteHWRegs.
This commit is contained in:
aliaspider 2016-04-18 15:22:41 +01:00
parent 4994de806a
commit 0f8895bcc3
3 changed files with 8 additions and 48 deletions
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2
Makefile.ctr
View File

@ -21,7 +21,7 @@ APP_RSF = ctr/tools/template.rsf
APP_SYSTEM_MODE = 64MB
APP_SYSTEM_MODE_EXT = 124MB
APP_BIG_TEXT_SECTION = 0
APP_USE_SVCHAX = 1
APP_USE_SVCHAX = 0
include ctr/Makefile.cores

46
ctr/ctr_svchax.c
View File

@ -45,27 +45,6 @@ static u32 svc_7b(backdoor_fn entry_fn, ...) // can pass up to two arguments to
return 0;
}
static __attribute__((naked))
u32 k_get_PA(u32* addr)
{
__asm__ volatile(
"mov r1, r0 \n\t"
"mcr p15, 0, r0, c7, c8, 1 \n\t"
"mrc p15, 0, r0, c7, c4, 0 \n\t"
"mov r0, r0, LSR#12 \n\t"
"mov r0, r0, LSL#12 \n\t"
"mov r1, r1, LSL#20 \n\t"
"orr r0, r1, LSR#20 \n\t"
"bx lr \n\t"
);
return 0;
}
u32 get_PA(u32 addr)
{
return svc_7b((backdoor_fn)k_get_PA, addr);
}
static void k_enable_all_svcs(u32 isNew3DS)
{
u32* thread_ACL = *(*(u32***)CURRENT_KTHREAD + 0x22) - 0x6;
@ -526,28 +505,3 @@ Result svchax_init(bool patch_srv)
return 0;
}
Result ctr_set_parallax_layer(bool state)
{
static u32 parallax_layer_kaddr = 0;
if(!__ctr_svchax)
return -1;
if(!parallax_layer_kaddr)
{
for (parallax_layer_kaddr = 0xfffc0000; parallax_layer_kaddr < 0xfffe0000; parallax_layer_kaddr += 0x2000)
{
if (get_PA(parallax_layer_kaddr) == 0x10202000)
break;
else
svcSleepThread(10000);
}
}
write_kaddr(parallax_layer_kaddr, state? 0x00010001: 0x0);
#if 0
printf("set layer : %s\n", state?"ON" : "OFF");
#endif
return 0;
}

8
gfx/drivers/ctr_gu.h
View File

@ -67,7 +67,13 @@ extern u32 gpuCmdBufOffset;
extern u32 __linear_heap_size;
extern u32 __linear_heap;
Result ctr_set_parallax_layer(bool state);
__attribute__((always_inline))
static INLINE Result ctr_set_parallax_layer(bool state)
{
u32 reg_state = state? 0x00010001: 0x0;
return GSPGPU_WriteHWRegs(0x202000, &reg_state, 4);
}
__attribute__((always_inline))
static INLINE void ctrGuSetTexture(GPU_TEXUNIT unit, u32* data,