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GBA Hardware: Prepare for adding alarms

This commit is contained in:
Vicki Pfau 2017-03-20 00:34:26 -07:00
parent af0830bf1f
commit a309e38e33
2 changed files with 18 additions and 12 deletions
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7
include/mgba/internal/gba/hardware.h
View File

@ -78,14 +78,13 @@ struct GBARTC {
int32_t transferStep;
int32_t bitsRead;
int32_t bits;
int32_t commandActive;
uint8_t commandActive;
uint8_t alarm1[3];
RTCCommandData command;
RTCStatus2 status2;
uint8_t freeReg;
RTCControl control;
uint8_t reserved1;
uint8_t reserved2;
uint8_t reserved3;
uint8_t alarm2[3];
uint8_t time[7];
};
#pragma pack(pop)

23
src/gba/hardware.c
View File

@ -33,14 +33,14 @@ static uint16_t _gbpSioWriteRegister(struct GBASIODriver* driver, uint32_t addre
static void _gbpSioProcessEvents(struct mTiming* timing, void* user, uint32_t cyclesLate);
static const int RTC_BYTES[8] = {
0, // Force reset
0, // Empty
1, // Status register 1
1, // Duty/alarm 1
7, // Date/Time
0, // Force IRQ
1, // Control register
0, // Empty
1, // Force IRQ
1, // Status register 2
3, // Alarm 2
3, // Time
0 // Empty
1 // Free register
};
void GBAHardwareInit(struct GBACartridgeHardware* hw, uint16_t* base) {
@ -245,6 +245,10 @@ void GBARTCProcessByte(struct GBARTC* rtc, struct mRTCSource* source) {
case RTC_DATETIME:
case RTC_TIME:
break;
case RTC_ALARM1:
case RTC_ALARM2:
mLOG(GBA_HW, STUB, "Unimplemented RTC command %u:%02X", RTCCommandDataGetCommand(rtc->command), rtc->bits);
break;
}
}
@ -272,6 +276,9 @@ unsigned GBARTCOutput(struct GBARTC* rtc) {
case RTC_FREE_REG:
outputByte = rtc->freeReg;
case RTC_FORCE_IRQ:
case RTC_ALARM1:
case RTC_ALARM2:
mLOG(GBA_HW, STUB, "Unimplemented RTC command %u", RTCCommandDataGetCommand(rtc->command));
break;
}
unsigned output = (outputByte >> rtc->bitsRead) & 1;
@ -581,7 +588,7 @@ void GBAHardwareSerialize(const struct GBACartridgeHardware* hw, struct GBASeria
STORE_32(hw->rtc.transferStep, 0, &state->hw.rtc.transferStep);
STORE_32(hw->rtc.bitsRead, 0, &state->hw.rtc.bitsRead);
STORE_32(hw->rtc.bits, 0, &state->hw.rtc.bits);
STORE_32(hw->rtc.commandActive, 0, &state->hw.rtc.commandActive);
state->hw.rtc.commandActive = hw->rtc.commandActive;
state->hw.rtc.command = hw->rtc.command;
state->hw.rtc.control = hw->rtc.control;
memcpy(state->hw.rtc.time, hw->rtc.time, sizeof(state->hw.rtc.time));
@ -613,7 +620,7 @@ void GBAHardwareDeserialize(struct GBACartridgeHardware* hw, const struct GBASer
LOAD_32(hw->rtc.transferStep, 0, &state->hw.rtc.transferStep);
LOAD_32(hw->rtc.bitsRead, 0, &state->hw.rtc.bitsRead);
LOAD_32(hw->rtc.bits, 0, &state->hw.rtc.bits);
LOAD_32(hw->rtc.commandActive, 0, &state->hw.rtc.commandActive);
hw->rtc.commandActive = state->hw.rtc.commandActive;
hw->rtc.command = state->hw.rtc.command;
hw->rtc.control = state->hw.rtc.control;
memcpy(hw->rtc.time, state->hw.rtc.time, sizeof(hw->rtc.time));