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-rw-r--r--src/dev/x86/i8042.hh169
1 files changed, 143 insertions, 26 deletions
diff --git a/src/dev/x86/i8042.hh b/src/dev/x86/i8042.hh
index 7eeb5f7e0..8a941f9a5 100644
--- a/src/dev/x86/i8042.hh
+++ b/src/dev/x86/i8042.hh
@@ -42,9 +42,147 @@ namespace X86ISA
class IntPin;
+class PS2Device
+{
+ protected:
+ std::queue<uint8_t> outBuffer;
+
+ static const uint16_t NoCommand = (uint16_t)(-1);
+
+ uint16_t lastCommand;
+ void bufferData(const uint8_t *data, int size);
+ void ack();
+ void nack();
+
+ public:
+ virtual ~PS2Device()
+ {};
+
+ PS2Device() : lastCommand(NoCommand)
+ {}
+
+ bool hasData()
+ {
+ return !outBuffer.empty();
+ }
+
+ uint8_t getData()
+ {
+ uint8_t data = outBuffer.front();
+ outBuffer.pop();
+ return data;
+ }
+
+ virtual bool processData(uint8_t data) = 0;
+};
+
+class PS2Mouse : public PS2Device
+{
+ protected:
+ static const uint8_t ID[];
+
+ enum Command
+ {
+ Scale1to1 = 0xE6,
+ Scale2to1 = 0xE7,
+ SetResolution = 0xE8,
+ GetStatus = 0xE9,
+ ReadData = 0xEB,
+ ResetWrapMode = 0xEC,
+ WrapMode = 0xEE,
+ RemoteMode = 0xF0,
+ ReadID = 0xF2,
+ SampleRate = 0xF3,
+ EnableReporting = 0xF4,
+ DisableReporting = 0xF5,
+ DefaultsAndDisable = 0xF6,
+ Resend = 0xFE,
+ Reset = 0xFF
+ };
+
+ BitUnion8(Status)
+ Bitfield<6> remote;
+ Bitfield<5> enabled;
+ Bitfield<4> twoToOne;
+ Bitfield<2> leftButton;
+ Bitfield<0> rightButton;
+ EndBitUnion(Status)
+
+ Status status;
+ uint8_t resolution;
+ uint8_t sampleRate;
+ public:
+ PS2Mouse() : PS2Device(), status(0), resolution(4), sampleRate(100)
+ {}
+
+ bool processData(uint8_t data);
+};
+
+class PS2Keyboard : public PS2Device
+{
+ protected:
+ static const uint8_t ID[];
+
+ enum Command
+ {
+ LEDWrite = 0xED,
+ DiagnosticEcho = 0xEE,
+ AlternateScanCodes = 0xF0,
+ ReadID = 0xF2,
+ TypematicInfo = 0xF3,
+ Enable = 0xF4,
+ Disable = 0xF5,
+ DefaultsAndDisable = 0xF6,
+ AllKeysToTypematic = 0xF7,
+ AllKeysToMakeRelease = 0xF8,
+ AllKeysToMake = 0xF9,
+ AllKeysToTypematicMakeRelease = 0xFA,
+ KeyToTypematic = 0xFB,
+ KeyToMakeRelease = 0xFC,
+ KeyToMakeOnly = 0xFD,
+ Resend = 0xFE,
+ Reset = 0xFF
+ };
+
+ public:
+ bool processData(uint8_t data);
+};
+
class I8042 : public BasicPioDevice
{
protected:
+ enum Command
+ {
+ GetCommandByte = 0x20,
+ ReadControllerRamBase = 0x20,
+ WriteCommandByte = 0x60,
+ WriteControllerRamBase = 0x60,
+ CheckForPassword = 0xA4,
+ LoadPassword = 0xA5,
+ CheckPassword = 0xA6,
+ DisableMouse = 0xA7,
+ EnableMouse = 0xA8,
+ TestMouse = 0xA9,
+ SelfTest = 0xAA,
+ InterfaceTest = 0xAB,
+ DiagnosticDump = 0xAC,
+ DisableKeyboard = 0xAD,
+ EnableKeyboard = 0xAE,
+ ReadInputPort = 0xC0,
+ ContinuousPollLow = 0xC1,
+ ContinuousPollHigh = 0xC2,
+ ReadOutputPort = 0xD0,
+ WriteOutputPort = 0xD1,
+ WriteKeyboardOutputBuff = 0xD2,
+ WriteMouseOutputBuff = 0xD3,
+ WriteToMouse = 0xD4,
+ DisableA20 = 0xDD,
+ EnableA20 = 0xDF,
+ ReadTestInputs = 0xE0,
+ PulseOutputBitBase = 0xF0,
+ SystemReset = 0xFE
+ };
+
BitUnion8(StatusReg)
Bitfield<7> parityError;
Bitfield<6> timeout;
@@ -77,32 +215,13 @@ class I8042 : public BasicPioDevice
static const uint16_t NoCommand = (uint16_t)(-1);
uint16_t lastCommand;
- BitUnion8(MouseStatus)
- Bitfield<6> remote;
- Bitfield<5> enabled;
- Bitfield<4> twoToOne;
- Bitfield<2> leftButton;
- Bitfield<0> rightButton;
- EndBitUnion(MouseStatus)
-
IntSourcePin *mouseIntPin;
- std::queue<uint8_t> mouseBuffer;
- uint16_t lastMouseCommand;
- uint8_t mouseResolution;
- uint8_t mouseSampleRate;
- MouseStatus mouseStatus;
+ IntSourcePin *keyboardIntPin;
+ PS2Mouse mouse;
+ PS2Keyboard keyboard;
- IntSourcePin *keyboardIntPin;
- std::queue<uint8_t> keyboardBuffer;
- uint16_t lastKeyboardCommand;
-
- bool writeData(uint8_t newData, bool mouse = false);
- void keyboardAck();
- void writeKeyboardData(const uint8_t *data, int size);
- void mouseAck();
- void mouseNack();
- void writeMouseData(const uint8_t *data, int size);
+ void writeData(uint8_t newData, bool mouse = false);
uint8_t readDataOut();
public:
@@ -117,9 +236,7 @@ class I8042 : public BasicPioDevice
I8042(Params *p) : BasicPioDevice(p), latency(p->pio_latency),
dataPort(p->data_port), commandPort(p->command_port),
statusReg(0), commandByte(0), dataReg(0), lastCommand(NoCommand),
- mouseIntPin(p->mouse_int_pin), lastMouseCommand(NoCommand),
- keyboardIntPin(p->keyboard_int_pin),
- lastKeyboardCommand(NoCommand)
+ mouseIntPin(p->mouse_int_pin), keyboardIntPin(p->keyboard_int_pin)
{
statusReg.passedSelfTest = 1;
statusReg.commandLast = 1;