prime/src/Dolphin/GBA/GBARead.c

41 lines
771 B
C

#include "dolphin/GBAPriv.h"
static void ReadProc(s32 chan) {
GBAControl* gba;
gba = &__GBA[chan];
if (gba->ret == 0) {
memcpy(gba->ptr, gba->input, 4);
gba->status[0] = gba->input[4] & GBA_JSTAT_MASK;
}
}
s32 GBAReadAsync(s32 chan, u8* dst, u8* status, GBACallback callback) {
GBAControl* gba;
gba = &__GBA[chan];
if (gba->callback != NULL) {
return 2;
}
gba->output[0] = 0x14;
gba->ptr = dst;
gba->status = status;
gba->callback = callback;
return __GBATransfer(chan, 1, 5, ReadProc);
}
s32 GBARead(s32 chan, u8* dst, u8* status) {
s32 tmp;
GBAControl* gba = &__GBA[chan];
s32 ret;
ret = GBAReadAsync(chan, dst, status, __GBASyncCallback);
if (ret != GBA_READY) {
return ret;
}
return __GBASync(chan);
}