diff options
Diffstat (limited to 'src/DSi_I2C.cpp')
| -rw-r--r-- | src/DSi_I2C.cpp | 205 |
1 files changed, 99 insertions, 106 deletions
diff --git a/src/DSi_I2C.cpp b/src/DSi_I2C.cpp index 24aaa87..8549ecb 100644 --- a/src/DSi_I2C.cpp +++ b/src/DSi_I2C.cpp @@ -29,18 +29,16 @@ using Platform::Log; using Platform::LogLevel; -namespace DSi_BPTWL -{ // TODO: These are purely approximations -const double PowerButtonShutdownTime = 0.5; -const double PowerButtonForcedShutdownTime = 5.0; -const double VolumeSwitchRepeatStart = 0.5; -const double VolumeSwitchRepeatRate = 1.0 / 6; +const double DSi_BPTWL::PowerButtonShutdownTime = 0.5; +const double DSi_BPTWL::PowerButtonForcedShutdownTime = 5.0; +const double DSi_BPTWL::VolumeSwitchRepeatStart = 0.5; +const double DSi_BPTWL::VolumeSwitchRepeatRate = 1.0 / 6; // Could not find a pattern or a decent formula for these, // regardless, they're only 64 bytes in size -const u8 VolumeDownTable[32] = +const u8 DSi_BPTWL::VolumeDownTable[32] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x02, 0x03, 0x04, 0x05, 0x06, 0x06, 0x07, 0x08, 0x09, 0x0A, @@ -48,7 +46,7 @@ const u8 VolumeDownTable[32] = 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, }; -const u8 VolumeUpTable[32] = +const u8 DSi_BPTWL::VolumeUpTable[32] = { 0x02, 0x03, 0x06, 0x07, 0x08, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, @@ -56,27 +54,16 @@ const u8 VolumeUpTable[32] = 0x1D, 0x1E, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, }; -double PowerButtonTime = 0.0; -bool PowerButtonDownFlag = false; -bool PowerButtonShutdownFlag = false; -double VolumeSwitchTime = 0.0; -double VolumeSwitchRepeatTime = 0.0; -bool VolumeSwitchDownFlag = false; -u32 VolumeSwitchKeysDown = 0; - -u8 Registers[0x100]; -u32 CurPos; -bool Init() +DSi_BPTWL::DSi_BPTWL(DSi_I2CHost* host) : DSi_I2CDevice(host) { - return true; } -void DeInit() +DSi_BPTWL::~DSi_BPTWL() { } -void Reset() +void DSi_BPTWL::Reset() { CurPos = -1; memset(Registers, 0x5A, 0x100); @@ -115,10 +102,11 @@ void Reset() VolumeSwitchTime = 0.0; VolumeSwitchRepeatTime = 0.0; VolumeSwitchKeysDown = 0; + VolumeSwitchDownFlag = false; } -void DoSavestate(Savestate* file) +void DSi_BPTWL::DoSavestate(Savestate* file) { file->Section("I2BP"); @@ -127,21 +115,21 @@ void DoSavestate(Savestate* file) } // TODO: Needs more investigation on the other bits -inline bool GetIRQMode() +inline bool DSi_BPTWL::GetIRQMode() { return Registers[0x12] & 0x01; } -u8 GetBootFlag() { return Registers[0x70]; } +u8 DSi_BPTWL::GetBootFlag() { return Registers[0x70]; } -bool GetBatteryCharging() { return Registers[0x20] >> 7; } -void SetBatteryCharging(bool charging) +bool DSi_BPTWL::GetBatteryCharging() { return Registers[0x20] >> 7; } +void DSi_BPTWL::SetBatteryCharging(bool charging) { Registers[0x20] = (((charging ? 0x8 : 0x0) << 4) | (Registers[0x20] & 0x0F)); } -u8 GetBatteryLevel() { return Registers[0x20] & 0xF; } -void SetBatteryLevel(u8 batteryLevel) +u8 DSi_BPTWL::GetBatteryLevel() { return Registers[0x20] & 0xF; } +void DSi_BPTWL::SetBatteryLevel(u8 batteryLevel) { Registers[0x20] = ((Registers[0x20] & 0xF0) | (batteryLevel & 0x0F)); //SPI_Powerman::SetBatteryLevelOkay(batteryLevel > batteryLevel_Low ? true : false); @@ -153,20 +141,20 @@ void SetBatteryLevel(u8 batteryLevel) } -u8 GetVolumeLevel() { return Registers[0x40]; } -void SetVolumeLevel(u8 volume) +u8 DSi_BPTWL::GetVolumeLevel() { return Registers[0x40]; } +void DSi_BPTWL::SetVolumeLevel(u8 volume) { Registers[0x40] = volume & 0x1F; } -u8 GetBacklightLevel() { return Registers[0x41]; } -void SetBacklightLevel(u8 backlight) +u8 DSi_BPTWL::GetBacklightLevel() { return Registers[0x41]; } +void DSi_BPTWL::SetBacklightLevel(u8 backlight) { Registers[0x41] = backlight > 4 ? 4 : backlight; } -void ResetButtonState() +void DSi_BPTWL::ResetButtonState() { PowerButtonTime = 0.0; PowerButtonDownFlag = false; @@ -178,7 +166,7 @@ void ResetButtonState() VolumeSwitchRepeatTime = 0.0; } -void DoHardwareReset(bool direct) +void DSi_BPTWL::DoHardwareReset(bool direct) { ResetButtonState(); @@ -196,14 +184,14 @@ void DoHardwareReset(bool direct) NDS::ARM7->Halt(4); } -void DoShutdown() +void DSi_BPTWL::DoShutdown() { ResetButtonState(); NDS::Stop(Platform::StopReason::PowerOff); } -void SetPowerButtonHeld(double time) +void DSi_BPTWL::SetPowerButtonHeld(double time) { if (!PowerButtonDownFlag) { @@ -230,7 +218,7 @@ void SetPowerButtonHeld(double time) } } -void SetPowerButtonReleased(double time) +void DSi_BPTWL::SetPowerButtonReleased(double time) { double elapsed = time - PowerButtonTime; if (elapsed >= 0 && elapsed < PowerButtonShutdownTime) @@ -243,12 +231,12 @@ void SetPowerButtonReleased(double time) PowerButtonShutdownFlag = false; } -void SetVolumeSwitchHeld(u32 key) +void DSi_BPTWL::SetVolumeSwitchHeld(u32 key) { VolumeSwitchKeysDown |= (1 << key); } -void SetVolumeSwitchReleased(u32 key) +void DSi_BPTWL::SetVolumeSwitchReleased(u32 key) { VolumeSwitchKeysDown &= ~(1 << key); VolumeSwitchDownFlag = false; @@ -256,7 +244,7 @@ void SetVolumeSwitchReleased(u32 key) VolumeSwitchRepeatTime = 0.0; } -inline bool CheckVolumeSwitchKeysValid() +inline bool DSi_BPTWL::CheckVolumeSwitchKeysValid() { bool up = VolumeSwitchKeysDown & (1 << volumeKey_Up); bool down = VolumeSwitchKeysDown & (1 << volumeKey_Down); @@ -264,7 +252,7 @@ inline bool CheckVolumeSwitchKeysValid() return up != down; } -s32 ProcessVolumeSwitchInput(double time) +s32 DSi_BPTWL::ProcessVolumeSwitchInput(double time) { if (!CheckVolumeSwitchKeysValid()) return -1; @@ -303,7 +291,7 @@ s32 ProcessVolumeSwitchInput(double time) } -void DoPowerButtonPress() +void DSi_BPTWL::DoPowerButtonPress() { // Set button pressed IRQ SetIRQ(IRQ_PowerButtonPressed); @@ -311,7 +299,7 @@ void DoPowerButtonPress() // There is no default hardware behavior for pressing the power button } -void DoPowerButtonReset() +void DSi_BPTWL::DoPowerButtonReset() { // Reset via IRQ, handled by software SetIRQ(IRQ_PowerButtonReset); @@ -324,7 +312,7 @@ void DoPowerButtonReset() } } -void DoPowerButtonShutdown() +void DSi_BPTWL::DoPowerButtonShutdown() { // Shutdown via IRQ, handled by software if (!PowerButtonShutdownFlag) @@ -346,12 +334,12 @@ void DoPowerButtonShutdown() // down the power button, the DSi will still shut down } -void DoPowerButtonForceShutdown() +void DSi_BPTWL::DoPowerButtonForceShutdown() { DoShutdown(); } -void DoVolumeSwitchPress(u32 key) +void DSi_BPTWL::DoVolumeSwitchPress(u32 key) { u8 volume = Registers[0x40]; @@ -373,7 +361,7 @@ void DoVolumeSwitchPress(u32 key) SetIRQ(IRQ_VolumeSwitchPressed); } -void SetIRQ(u8 irqFlag) +void DSi_BPTWL::SetIRQ(u8 irqFlag) { Registers[0x10] |= irqFlag & IRQ_ValidMask; @@ -383,12 +371,12 @@ void SetIRQ(u8 irqFlag) } } -void Start() +void DSi_BPTWL::Acquire() { //printf("BPTWL: start\n"); } -u8 Read(bool last) +u8 DSi_BPTWL::Read(bool last) { //printf("BPTWL: read %02X -> %02X @ %08X\n", CurPos, Registers[CurPos], NDS::GetPC(1)); u8 ret = Registers[CurPos]; @@ -409,7 +397,7 @@ u8 Read(bool last) return ret; } -void Write(u8 val, bool last) +void DSi_BPTWL::Write(u8 val, bool last) { if (last) { @@ -460,51 +448,69 @@ void Write(u8 val, bool last) CurPos++; // CHECKME } -} - - -namespace DSi_I2C -{ - -u8 Cnt; -u8 Data; - -u32 Device; -bool Init() +DSi_I2CHost::DSi_I2CHost() { - if (!DSi_BPTWL::Init()) return false; - - return true; + BPTWL = new DSi_BPTWL(this); + Camera0 = new DSi_Camera(this, 0); + Camera1 = new DSi_Camera(this, 1); } -void DeInit() +DSi_I2CHost::~DSi_I2CHost() { - DSi_BPTWL::DeInit(); + delete BPTWL; BPTWL = nullptr; + delete Camera0; Camera0 = nullptr; + delete Camera1; Camera1 = nullptr; } -void Reset() +void DSi_I2CHost::Reset() { Cnt = 0; Data = 0; - Device = -1; + CurDeviceID = 0; + CurDevice = nullptr; - DSi_BPTWL::Reset(); + BPTWL->Reset(); + Camera0->Reset(); + Camera1->Reset(); } -void DoSavestate(Savestate* file) +void DSi_I2CHost::DoSavestate(Savestate* file) { file->Section("I2Ci"); file->Var8(&Cnt); file->Var8(&Data); - file->Var32(&Device); + file->Var8(&CurDeviceID); + + if (!file->Saving) + { + GetCurDevice(); + } + + BPTWL->DoSavestate(file); + Camera0->DoSavestate(file); + Camera1->DoSavestate(file); +} - DSi_BPTWL::DoSavestate(file); +void DSi_I2CHost::GetCurDevice() +{ + switch (CurDeviceID) + { + case 0x4A: CurDevice = BPTWL; break; + case 0x78: CurDevice = Camera0; break; + case 0x7A: CurDevice = Camera1; break; + case 0xA0: + case 0xE0: CurDevice = nullptr; break; + default: + Log(LogLevel::Warn, "I2C: unknown device %02X\n", CurDeviceID); + CurDevice = nullptr; + break; + } } -void WriteCnt(u8 val) +void DSi_I2CHost::WriteCnt(u8 val) { //printf("I2C: write CNT %02X, %02X, %08X\n", val, Data, NDS::GetPC(1)); @@ -522,17 +528,13 @@ void WriteCnt(u8 val) // read val &= 0xF7; - switch (Device) + if (CurDevice) + { + Data = CurDevice->Read(islast); + } + else { - case 0x4A: Data = DSi_BPTWL::Read(islast); break; - case 0x78: Data = DSi_CamModule::Camera0->I2C_Read(islast); break; - case 0x7A: Data = DSi_CamModule::Camera1->I2C_Read(islast); break; - case 0xA0: - case 0xE0: Data = 0xFF; break; - default: - Log(LogLevel::Warn, "I2C: read on unknown device %02X, cnt=%02X, data=%02X, last=%d\n", Device, val, 0, islast); Data = 0xFF; - break; } //printf("I2C read, device=%02X, cnt=%02X, data=%02X, last=%d\n", Device, val, Data, islast); @@ -545,37 +547,30 @@ void WriteCnt(u8 val) if (val & (1<<1)) { - Device = Data & 0xFE; + CurDeviceID = Data & 0xFE; //printf("I2C: %s start, device=%02X\n", (Data&0x01)?"read":"write", Device); - switch (Device) + GetCurDevice(); + if (CurDevice) + { + CurDevice->Acquire(); + } + else { - case 0x4A: DSi_BPTWL::Start(); break; - case 0x78: DSi_CamModule::Camera0->I2C_Start(); break; - case 0x7A: DSi_CamModule::Camera1->I2C_Start(); break; - case 0xA0: - case 0xE0: ack = false; break; - default: - Log(LogLevel::Warn, "I2C: %s start on unknown device %02X\n", (Data&0x01)?"read":"write", Device); ack = false; - break; } } else { //printf("I2C write, device=%02X, cnt=%02X, data=%02X, last=%d\n", Device, val, Data, islast); - switch (Device) + if (CurDevice) + { + CurDevice->Write(Data, islast); + } + else { - case 0x4A: DSi_BPTWL::Write(Data, islast); break; - case 0x78: DSi_CamModule::Camera0->I2C_Write(Data, islast); break; - case 0x7A: DSi_CamModule::Camera1->I2C_Write(Data, islast); break; - case 0xA0: - case 0xE0: ack = false; break; - default: - Log(LogLevel::Warn, "I2C: write on unknown device %02X, cnt=%02X, data=%02X, last=%d\n", Device, val, Data, islast); ack = false; - break; } } @@ -588,14 +583,12 @@ void WriteCnt(u8 val) Cnt = val; } -u8 ReadData() +u8 DSi_I2CHost::ReadData() { return Data; } -void WriteData(u8 val) +void DSi_I2CHost::WriteData(u8 val) { Data = val; } - -} |