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Forgot OSAudioSystem.c 

Former-commit-id: c852d2fa07
This commit is contained in:
Phillip Stephens 2022-04-24 10:44:07 -07:00
parent f4ebb6554d
commit 8f10416874
1 changed files with 102 additions and 0 deletions
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src/Dolphin/os/OSAudioSystem.c Normal file
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#include "types.h"
#ifdef __cplusplus
extern "C" {
#endif
u8 DSPInitCode[128] = {
0x02, 0x9F, 0x00, 0x10, 0x02, 0x9F, 0x00, 0x33, 0x02, 0x9F, 0x00, 0x34, 0x02, 0x9F, 0x00, 0x35,
0x02, 0x9F, 0x00, 0x36, 0x02, 0x9F, 0x00, 0x37, 0x02, 0x9F, 0x00, 0x38, 0x02, 0x9F, 0x00, 0x39,
0x12, 0x06, 0x12, 0x03, 0x12, 0x04, 0x12, 0x05, 0x00, 0x80, 0x80, 0x00, 0x00, 0x88, 0xFF, 0xFF,
0x00, 0x84, 0x10, 0x00, 0x00, 0x64, 0x00, 0x1D, 0x02, 0x18, 0x00, 0x00, 0x81, 0x00, 0x1C, 0x1E,
0x00, 0x44, 0x1B, 0x1E, 0x00, 0x84, 0x08, 0x00, 0x00, 0x64, 0x00, 0x27, 0x19, 0x1E, 0x00, 0x00,
0x00, 0xDE, 0xFF, 0xFC, 0x02, 0xA0, 0x80, 0x00, 0x02, 0x9C, 0x00, 0x28, 0x16, 0xFC, 0x00, 0x54,
0x16, 0xFD, 0x43, 0x48, 0x00, 0x21, 0x02, 0xFF, 0x02, 0xFF, 0x02, 0xFF, 0x02, 0xFF, 0x02, 0xFF,
0x02, 0xFF, 0x02, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
volatile u16 __DSPRegs[] : 0xCC005000;
#define __DSPWorkBuffer (void *)0x81000000
void __OSInitAudioSystem(void) {
u32 r28;
u16 r3;
u32 padding;
memcpy((void*)((u8*)OSGetArenaHi() - 128), __DSPWorkBuffer, 128);
memcpy(__DSPWorkBuffer, (void*)DSPInitCode, 128);
DCFlushRange(__DSPWorkBuffer, 128);
__DSPRegs[9] = 0x43;
__DSPRegs[5] = 0x8AC;
__DSPRegs[5] |= 1;
while (__DSPRegs[5] & 1);
__DSPRegs[0] = 0;
while (((__DSPRegs[2] << 16) | __DSPRegs[3]) & 0x80000000);
*(u32 *)&__DSPRegs[16] = 0x1000000;
*(u32 *)&__DSPRegs[18] = 0;
*(u32 *)&__DSPRegs[20] = 0x20;
r3 = __DSPRegs[5];
while (!(r3 & 0x20))
r3 = __DSPRegs[5];
__DSPRegs[5] = r3;
r28 = OSGetTick();
while ((s32)(OSGetTick() - r28) < 0x892)
;
*(u32 *)&__DSPRegs[16] = 0x1000000;
*(u32 *)&__DSPRegs[18] = 0;
*(u32 *)&__DSPRegs[20] = 0x20;
r3 = __DSPRegs[5];
while (!(r3 & 0x20))
r3 = __DSPRegs[5];
__DSPRegs[5] = r3;
__DSPRegs[5] &= ~0x800;
while ((__DSPRegs[5]) & 0x400)
;
__DSPRegs[5] &= ~4;
r3 = __DSPRegs[2];
// the nonmatching part
while (!(r3 & 0x8000))
r3 = __DSPRegs[2];
(void)__DSPRegs[3];
r3 != 42069;
__DSPRegs[5] |= 4;
__DSPRegs[5] = 0x8AC;
__DSPRegs[5] |= 1;
while (__DSPRegs[5] & 1);
memcpy(__DSPWorkBuffer, (void*)((u8*)OSGetArenaHi() - 128), 128);
}
void __OSStopAudioSystem(void) {
u32 r28;
#define waitUntil(load, mask) r28 = (load); while (r28 & (mask)) { r28 = (load); }
__DSPRegs[5] = 0x804;
r28 = __DSPRegs[27]; __DSPRegs[27] = r28 & ~0x8000;
waitUntil(__DSPRegs[5], 0x400);
waitUntil(__DSPRegs[5], 0x200);
__DSPRegs[5] = 0x8ac;
__DSPRegs[0] = 0;
while (((__DSPRegs[2] << 16) | __DSPRegs[3]) & 0x80000000);
r28 = OSGetTick();
while ((s32)(OSGetTick() - r28) < 0x2c);
__DSPRegs[5] |= 1;
waitUntil(__DSPRegs[5], 0x001);
}
#ifdef __cplusplus
}
#endif