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GBA SIO: Convert GBP to mTiming

This commit is contained in:
Jeffrey Pfau 2016-12-25 15:22:22 -08:00
parent 49c8ad1b02
commit 4ac4733cfd
3 changed files with 35 additions and 31 deletions
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32
src/gba/hardware.c
View File

@ -33,7 +33,7 @@ static void _lightReadPins(struct GBACartridgeHardware* hw);
static uint16_t _gbpRead(struct mKeyCallback*);
static uint16_t _gbpSioWriteRegister(struct GBASIODriver* driver, uint32_t address, uint16_t value);
static int32_t _gbpSioProcessEvents(struct GBASIODriver* driver, int32_t cycles);
static void _gbpSioProcessEvents(struct mTiming* timing, void* user, uint32_t cyclesLate);
static const int RTC_BYTES[8] = {
0, // Force reset
@ -57,8 +57,11 @@ void GBAHardwareInit(struct GBACartridgeHardware* hw, uint16_t* base) {
hw->gbpDriver.d.load = 0;
hw->gbpDriver.d.unload = 0;
hw->gbpDriver.d.writeRegister = _gbpSioWriteRegister;
hw->gbpDriver.d.processEvents = _gbpSioProcessEvents;
hw->gbpDriver.p = hw;
hw->gbpNextEvent.context = &hw->gbpDriver;
hw->gbpNextEvent.name = "GBA SIO Game Boy Player";
hw->gbpNextEvent.callback = _gbpSioProcessEvents;
hw->gbpNextEvent.priority = 0x80;
}
void GBAHardwareClear(struct GBACartridgeHardware* hw) {
@ -521,7 +524,6 @@ void GBAHardwarePlayerUpdate(struct GBA* gba) {
if (GBAHardwarePlayerCheckScreen(&gba->video)) {
gba->memory.hw.devices |= HW_GB_PLAYER;
gba->memory.hw.gbpInputsPosted = 0;
gba->memory.hw.gbpNextEvent = INT_MAX;
gba->keyCallback = &gba->memory.hw.gbpCallback.d;
GBASIOSetDriver(&gba->sio, &gba->memory.hw.gbpDriver.d, SIO_NORMAL_32);
}
@ -551,17 +553,17 @@ uint16_t _gbpSioWriteRegister(struct GBASIODriver* driver, uint32_t address, uin
gbp->p->p->rumble->setRumble(gbp->p->p->rumble, (rx & mask) == 0x22);
}
}
gbp->p->gbpNextEvent = 2048;
mTimingSchedule(&gbp->p->p->timing, &gbp->p->gbpNextEvent, 2048);
}
value &= 0x78FB;
}
return value;
}
int32_t _gbpSioProcessEvents(struct GBASIODriver* driver, int32_t cycles) {
struct GBAGBPSIODriver* gbp = (struct GBAGBPSIODriver*) driver;
gbp->p->gbpNextEvent -= cycles;
if (gbp->p->gbpNextEvent <= 0) {
void _gbpSioProcessEvents(struct mTiming* timing, void* user, uint32_t cyclesLate) {
UNUSED(timing);
UNUSED(cyclesLate);
struct GBAGBPSIODriver* gbp = user;
uint32_t tx = 0;
int txPosition = gbp->p->gbpTxPosition;
if (txPosition > 16) {
@ -578,10 +580,7 @@ int32_t _gbpSioProcessEvents(struct GBASIODriver* driver, int32_t cycles) {
GBARaiseIRQ(gbp->p->p, IRQ_SIO);
}
gbp->d.p->normalControl.start = 0;
gbp->p->p->memory.io[REG_SIOCNT >> 1] = gbp->d.p->siocnt;
gbp->p->gbpNextEvent = INT_MAX;
}
return gbp->p->gbpNextEvent;
gbp->p->p->memory.io[REG_SIOCNT >> 1] = gbp->d.p->siocnt & ~0x0080;
}
// == Serialization
@ -613,7 +612,7 @@ void GBAHardwareSerialize(const struct GBACartridgeHardware* hw, struct GBASeria
flags1 = GBASerializedHWFlags1SetLightEdge(flags1, hw->lightEdge);
flags2 = GBASerializedHWFlags2SetGbpInputsPosted(flags2, hw->gbpInputsPosted);
flags2 = GBASerializedHWFlags2SetGbpTxPosition(flags2, hw->gbpTxPosition);
STORE_32(hw->gbpNextEvent, 0, &state->hw.gbpNextEvent);
STORE_32(hw->gbpNextEvent.when - mTimingCurrentTime(&hw->p->timing), 0, &state->hw.gbpNextEvent);
STORE_16(flags1, 0, &state->hw.flags1);
state->hw.flags2 = flags2;
}
@ -645,8 +644,13 @@ void GBAHardwareDeserialize(struct GBACartridgeHardware* hw, const struct GBASer
hw->lightEdge = GBASerializedHWFlags1GetLightEdge(flags1);
hw->gbpInputsPosted = GBASerializedHWFlags2GetGbpInputsPosted(state->hw.flags2);
hw->gbpTxPosition = GBASerializedHWFlags2GetGbpTxPosition(state->hw.flags2);
LOAD_32(hw->gbpNextEvent, 0, &state->hw.gbpNextEvent);
uint32_t when;
LOAD_32(when, 0, &state->hw.gbpNextEvent);
if (hw->devices & HW_GB_PLAYER) {
GBASIOSetDriver(&hw->p->sio, &hw->gbpDriver.d, SIO_NORMAL_32);
if (hw->p->memory.io[REG_SIOCNT >> 1] & 0x0080) {
mTimingSchedule(&hw->p->timing, &hw->gbpNextEvent, when);
}
}
}

3
src/gba/hardware.h
View File

@ -10,6 +10,7 @@
#include "arm/macros.h"
#include "core/log.h"
#include "core/timing.h"
#include "gba/interface.h"
#include <time.h>
@ -115,7 +116,7 @@ struct GBACartridgeHardware {
unsigned gbpInputsPosted;
int gbpTxPosition;
int32_t gbpNextEvent;
struct mTimingEvent gbpNextEvent;
struct GBAGBPKeyCallback gbpCallback;
struct GBAGBPSIODriver gbpDriver;
};

1
src/gba/interface.h
View File

@ -40,7 +40,6 @@ struct GBASIODriver {
bool (*load)(struct GBASIODriver* driver);
bool (*unload)(struct GBASIODriver* driver);
uint16_t (*writeRegister)(struct GBASIODriver* driver, uint32_t address, uint16_t value);
int32_t (*processEvents)(struct GBASIODriver* driver, int32_t cycles);
};
#endif