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A bit more refactoring

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This commit is contained in:
Pokechu22 2022-08-27 11:39:23 -07:00
parent 156040b10b
commit 3cbd4e2995
1 changed files with 37 additions and 19 deletions
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56
Source/Core/Core/HW/WII_IPC.cpp
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@ -136,14 +136,15 @@ public:
u8 current_byte;
u8 current_address;
void Update(Core::System& system, bool old_scl, bool new_scl, bool old_sda, bool new_sda);
void Update(Core::System& system, const bool old_scl, const bool new_scl, const bool old_sda,
const bool new_sda);
bool GetSCL() const;
bool GetSDA() const;
private:
void Start();
void Stop();
void WriteBit(bool value);
void Stop(Core::System& system);
void WriteBit(const bool value);
bool ReadBit();
};
I2CBus i2c_state;
@ -328,7 +329,29 @@ void WiiIPC::GPIOOutChanged(u32 old_value_hex)
// TODO: SLOT_LED
}
void I2CBus::Update(Core::System& system, bool old_scl, bool new_scl, bool old_sda, bool new_sda)
void I2CBus::Start()
{
INFO_LOG_FMT(WII_IPC, "AVE: Start I2C");
active = true;
acknowledge = false;
bit_counter = 0;
read_i2c_address = false;
is_correct_i2c_address = false;
// read_ave_address = false;
}
void I2CBus::Stop(Core::System& system)
{
INFO_LOG_FMT(WII_IPC, "AVE: Stop I2C");
Dolphin_Debugger::PrintCallstack(Core::CPUThreadGuard(system), Common::Log::LogType::WII_IPC,
Common::Log::LogLevel::LINFO);
active = false;
bit_counter = 0;
read_ave_address = false;
}
void I2CBus::Update(Core::System& system, const bool old_scl, const bool new_scl,
const bool old_sda, const bool new_sda)
{
if (old_scl != new_scl && old_sda != new_sda)
{
@ -337,31 +360,26 @@ void I2CBus::Update(Core::System& system, bool old_scl, bool new_scl, bool old_s
return;
}
if (old_scl == new_scl && old_sda == new_sda)
return; // Nothing changed
if (!new_scl)
{
// We only care about things that happen when SCL changes to high or is already high
}
if (old_scl && new_scl)
{
INFO_LOG_FMT(WII_IPC, "SCL {} {} {}", bit_counter, new_sda,
!!Common::Flags<GPIO>(ReadGPIOIn(system))[GPIO::AVE_SDA]);
// Check for changes to SDA while the clock is high.
if (old_sda && !new_sda)
{
INFO_LOG_FMT(WII_IPC, "AVE: Start I2C");
// SDA falling edge (now pulled low) while SCL is high indicates I²C start
active = true;
acknowledge = false;
bit_counter = 0;
read_i2c_address = false;
is_correct_i2c_address = false;
// read_ave_address = false;
Start();
}
else if (!old_sda && new_sda)
{
INFO_LOG_FMT(WII_IPC, "AVE: Stop I2C");
Dolphin_Debugger::PrintCallstack(Core::CPUThreadGuard(system), Common::Log::LogType::WII_IPC,
Common::Log::LogLevel::LINFO);
// SDA rising edge (now passive pullup) while SCL is high indicates I²C stop
active = false;
bit_counter = 0;
read_ave_address = false;
Stop(system);
}
}
else if (!old_scl && new_scl)