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#include "dolphin/GBAPriv.h"
#include "dolphin/sipriv.h"
void __GBAHandler(s32 chan, u32 sr, OSContext* context) {
int tmp;
GBA* gba;
OSContext tmpCtx;
GBACallback callback;
GBATransferCallback xferCallback;
gba = &__GBA[chan];
if (__GBAReset != 0) {
return;
}
if ((sr & 0xf)) {
gba->result = 1;
} else {
gba->result = 0;
}
if (gba->_38 != NULL) {
xferCallback = gba->_38;
gba->_38 = NULL;
xferCallback(chan);
}
if (gba->callback == NULL) {
return;
}
OSClearContext(&tmpCtx);
OSSetCurrentContext(&tmpCtx);
callback = gba->callback;
gba->callback = NULL;
callback(chan, gba->result);
OSClearContext(&tmpCtx);
OSSetCurrentContext(context);
}
void __GBASyncCallback(s32 chan, s32 ret) { OSWakeupThread(&__GBA[chan].thread_queue); }
#ifdef FULL_FRANK
s32 __GBASync(s32 chan) {
GBA* gba;
s32 enabled;
s32 ret;
gba = &__GBA[chan];
enabled = OSDisableInterrupts();
while (gba->callback != NULL) {
OSSleepThread(&gba->thread_queue);
}
ret = gba->result;
OSRestoreInterrupts(enabled);
return ret;
}
#else
extern void OSSleepThread();
#pragma push
#pragma optimization_level 0
#pragma optimizewithasm off
asm s32 __GBASync(s32 chan) {
nofralloc
mflr r0
lis r4, __GBA@ha
stw r0, 4(r1)
slwi r3, r3, 8
addi r0, r4, __GBA@l
stwu r1, -0x18(r1)
stw r31, 0x14(r1)
add r31, r0, r3
stw r30, 0x10(r1)
bl OSDisableInterrupts
mr r30, r3
b lbl_803CAD50
lbl_803CAD48:
addi r3, r31, 0x24
bl OSSleepThread
lbl_803CAD50:
lwz r0, 0x1c(r31)
cmplwi r0, 0
bne lbl_803CAD48
lwz r31, 0x20(r31)
mr r3, r30
bl OSRestoreInterrupts
mr r3, r31
lwz r0, 0x1c(r1)
lwz r31, 0x14(r1)
lwz r30, 0x10(r1)
addi r1, r1, 0x18
mtlr r0
blr
}
#pragma pop
#endif
void TypeAndStatusCallback(s32 chan, u32 type) {
s32 tmp;
GBA* gba;
OSContext* context;
GBACallback callback;
GBATransferCallback xferCallback;
OSContext tmpContext;
gba = &__GBA[chan];
if (__GBAReset != 0) {
return;
}
if ((type & 0xFF) != 0 || (type & 0xffff0000) != 0x40000) {
gba->result = GBA_NOT_READY;
} else {
if (SITransfer(chan, &gba->command, gba->_0c, gba->dst, gba->_10, __GBAHandler, gba->delay)) {
return;
}
gba->result = GBA_BUSY;
}
if (gba->_38 != NULL) {
xferCallback = gba->_38;
gba->_38 = NULL;
xferCallback(chan);
}
if (gba->callback != NULL) {
context = OSGetCurrentContext();
OSClearContext(&tmpContext);
OSSetCurrentContext(&tmpContext);
callback = gba->callback;
gba->callback = NULL;
callback(chan, gba->result);
OSClearContext(&tmpContext);
OSSetCurrentContext(context);
__OSReschedule();
}
}
s32 __GBATransfer(s32 chan, s32 w1, s32 w2, GBATransferCallback callback) {
s32 enabled;
GBA* gba;
gba = &__GBA[chan];
enabled = OSDisableInterrupts();
gba->_38 = callback;
gba->_0c = w1;
gba->_10 = w2;
SIGetTypeAsync(chan, TypeAndStatusCallback);
OSRestoreInterrupts(enabled);
return GBA_READY;
}
OSTime __GBASetDelay(s32 chan, OSTime delay) {
OSTime oldDelay;
GBA* gba;
gba = &__GBA[chan];
oldDelay = gba->delay;
gba->delay = delay;
return oldDelay;
}
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