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GBA SIO: Move MULTI finishing logic out of drivers

This commit is contained in:
Vicki Pfau 2024-05-18 16:42:20 -07:00
parent f9e15c53d9
commit cd4132fba3
4 changed files with 25 additions and 21 deletions
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2
include/mgba/internal/gba/sio.h
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@ -85,6 +85,8 @@ void GBASIOWriteRCNT(struct GBASIO* sio, uint16_t value);
void GBASIOWriteSIOCNT(struct GBASIO* sio, uint16_t value);
uint16_t GBASIOWriteRegister(struct GBASIO* sio, uint32_t address, uint16_t value);
void GBASIOMultiplayerFinishTransfer(struct GBASIO* sio, uint16_t data[4], uint32_t cyclesLate);
int GBASIOJOYSendCommand(struct GBASIODriver* sio, enum GBASIOJOYCommand command, uint8_t* data);
CXX_GUARD_END

16
src/gba/extra/battlechip.c
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@ -131,11 +131,6 @@ void _battlechipTransferEvent(struct mTiming* timing, void* user, uint32_t cycle
uint16_t cmd = gate->d.p->p->memory.io[GBA_REG(SIOMLT_SEND)];
uint16_t reply = 0xFFFF;
gate->d.p->p->memory.io[GBA_REG(SIOMULTI0)] = cmd;
gate->d.p->p->memory.io[GBA_REG(SIOMULTI2)] = 0xFFFF;
gate->d.p->p->memory.io[GBA_REG(SIOMULTI3)] = 0xFFFF;
gate->d.p->siocnt = GBASIOMultiplayerClearBusy(gate->d.p->siocnt);
gate->d.p->siocnt = GBASIOMultiplayerSetId(gate->d.p->siocnt, 0);
mLOG(GBA_BATTLECHIP, DEBUG, "Game: %04X (%i)", cmd, gate->state);
@ -168,7 +163,7 @@ void _battlechipTransferEvent(struct mTiming* timing, void* user, uint32_t cycle
case 0xA3D0:
// EXE 4
case 0xA6C0:
mLOG(GBA_BATTLECHIP, DEBUG, "Resync detected");
mLOG(GBA_BATTLECHIP, DEBUG, "Resync detected");
gate->state = BATTLECHIP_STATE_SYNC;
break;
}
@ -213,9 +208,8 @@ void _battlechipTransferEvent(struct mTiming* timing, void* user, uint32_t cycle
mLOG(GBA_BATTLECHIP, DEBUG, "Gate: %04X (%i)", reply, gate->state);
++gate->state;
gate->d.p->p->memory.io[GBA_REG(SIOMULTI1)] = reply;
if (GBASIOMultiplayerIsIrq(gate->d.p->siocnt)) {
GBARaiseIRQ(gate->d.p->p, GBA_IRQ_SIO, cyclesLate);
}
uint16_t data[4] = {
cmd, reply, 0xFFFF, 0xFFFF
};
GBASIOMultiplayerFinishTransfer(gate->d.p, data, cyclesLate);
}

17
src/gba/sio.c
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@ -318,6 +318,23 @@ uint16_t GBASIOWriteRegister(struct GBASIO* sio, uint32_t address, uint16_t valu
return value;
}
void GBASIOMultiplayerFinishTransfer(struct GBASIO* sio, uint16_t data[4], uint32_t cyclesLate) {
int id = 0;
if (sio->activeDriver && sio->activeDriver->deviceId) {
id = sio->activeDriver->deviceId(sio->activeDriver);
}
sio->p->memory.io[GBA_REG(SIOMULTI0)] = data[0];
sio->p->memory.io[GBA_REG(SIOMULTI1)] = data[1];
sio->p->memory.io[GBA_REG(SIOMULTI2)] = data[2];
sio->p->memory.io[GBA_REG(SIOMULTI3)] = data[3];
sio->rcnt |= 1;
sio->siocnt = GBASIOMultiplayerClearBusy(sio->siocnt);
sio->siocnt = GBASIOMultiplayerSetId(sio->siocnt, id);
if (GBASIOMultiplayerIsIrq(sio->siocnt)) {
GBARaiseIRQ(sio->p, GBA_IRQ_SIO, cyclesLate);
}
}
int GBASIOJOYSendCommand(struct GBASIODriver* sio, enum GBASIOJOYCommand command, uint8_t* data) {
switch (command) {
case JOY_RESET:

11
src/gba/sio/lockstep.c
View File

@ -280,16 +280,7 @@ static void _finishTransfer(struct GBASIOLockstepNode* node) {
struct GBASIO* sio = node->d.p;
switch (node->mode) {
case GBA_SIO_MULTI:
sio->p->memory.io[GBA_REG(SIOMULTI0)] = node->p->multiRecv[0];
sio->p->memory.io[GBA_REG(SIOMULTI1)] = node->p->multiRecv[1];
sio->p->memory.io[GBA_REG(SIOMULTI2)] = node->p->multiRecv[2];
sio->p->memory.io[GBA_REG(SIOMULTI3)] = node->p->multiRecv[3];
sio->rcnt |= 1;
sio->siocnt = GBASIOMultiplayerClearBusy(sio->siocnt);
sio->siocnt = GBASIOMultiplayerSetId(sio->siocnt, node->id);
if (GBASIOMultiplayerIsIrq(sio->siocnt)) {
GBARaiseIRQ(sio->p, GBA_IRQ_SIO, 0);
}
GBASIOMultiplayerFinishTransfer(sio, node->p->multiRecv, 0);
break;
case GBA_SIO_NORMAL_8:
// TODO