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#include <revolution/types.h>
#include <revolution/os.h>
#include <revolution/exi.h>
const u32 __EXIFreq = 4;
s32 EXIGetConsoleType(void) {
return 1;
}
void EXIWait(void) {
while (__OSDeviceCode == 0) {}
}
static u32 __EXISwap32(u32 val) {
return val >> 24 & 0x000000FF | val >> 8 & 0x0000FF00 | val << 8 & 0x00FF0000 | val << 24 & 0xFF000000;
}
BOOL EXIWriteReg(s32 chan, u32 dev, u32 exiCmd, void* reg, s32 size) {
BOOL ret = FALSE;
u32 reg32;
switch (size) {
case 1:
reg32 = (u32)((*((u8*)reg) & 0xFF) << 24);
break;
case 2:
reg32 = (u32)(((*((u16*)reg) & 0xFF) << 24) | ((*((u16*)reg) & 0xFF00) << 8));
break;
default:
reg32 = __EXISwap32(*((u32*)reg));
break;
}
ret |= !EXILock(chan, dev, 0);
if (ret) {
return FALSE;
}
ret |= !EXISelect(chan, dev, 4);
if (ret) {
EXIUnlock(chan);
return FALSE;
}
ret |= !EXIImm(chan, &exiCmd, 4, 1, NULL);
ret |= !EXISync(chan);
ret |= !EXIImm(chan, ®32, 4, 1, NULL);
ret |= !EXISync(chan);
ret |= !EXIDeselect(chan);
ret |= !EXIUnlock(chan);
return !ret;
}
BOOL EXIReadRam(s32 chan, u32 dev, u32 exiCmd, void* buffer, s32 size, EXICallback callback) {
BOOL ret = FALSE;
ret |= !EXILock(chan, dev, NULL);
if (ret) {
return FALSE;
}
ret |= !EXISelect(chan, dev, 4);
if (ret) {
EXIUnlock(chan);
return FALSE;
}
ret |= !EXIImm(chan, &exiCmd, 4, 1, NULL);
ret |= !EXISync(chan);
ret |= !EXIDma(chan, buffer, size, EXI_READ, callback);
if (callback == NULL) {
ret |= !EXISync(chan);
ret |= !EXIDeselect(chan);
ret |= !EXIUnlock(chan);
}
return !ret;
}
BOOL EXIWriteRam(s32 chan, u32 dev, u32 exiCmd, void* buffer, s32 size, EXICallback callback) {
BOOL ret = FALSE;
ret |= !EXILock(chan, dev, NULL);
if (ret) {
return FALSE;
}
ret |= !EXISelect(chan, dev, 4);
if (ret) {
EXIUnlock(chan);
return FALSE;
}
ret |= !EXIImm(chan, &exiCmd, 4, 1, NULL);
ret |= !EXISync(chan);
ret |= !EXIDma(chan, buffer, size, EXI_WRITE, callback);
if (callback == NULL) {
ret |= !EXISync(chan);
ret |= !EXIDeselect(chan);
ret |= !EXIUnlock(chan);
}
return !ret;
}
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