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// Display (Crystalfontz CFA-635 USB LCD) |
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// |
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// Douglas Thrift |
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// |
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// $Id$ |
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|
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#ifndef _Display_hpp_ |
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#define _Display_hpp_ |
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|
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#include <posix.hpp> |
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#include <truck.hpp> |
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|
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#include <queue> |
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|
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class Display |
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{ |
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int ucom; |
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struct Packet |
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{ |
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enum Command |
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{ |
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PingCommand = 0x00, |
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GetHardwareAndFirmwareVersion = 0x01, |
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WriteUserFlashArea = 0x02, |
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ReadUserFlashArea = 0x03, |
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StoreCurrentStateAsBootState = 0x04, |
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RebootResetHostOrPowerOffHost = 0x05, |
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ClearLCDScreen = 0x06, |
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SetLCDSpecialCharacterData = 0x09, |
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Read8ByesOfLCDMemory = 0x0a, |
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SetLCDCursorPosition = 0x0b, |
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SetLCDCursorStyle = 0x0c, |
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SetLCDContrast = 0x0d, |
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SetLCDAndKeypadBacklight = 0x0e, |
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SetUpFanReporting = 0x10, |
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SetFanPower = 0x11, |
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ReadDOWDeviceInformation = 0x12, |
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SetUpTemperatureReporting = 0x13, |
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ArbitraryDOWTransaction = 0x14, |
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SendCommandDirectlyToTheLCDController = 0x16, |
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ConfigureKeyReporting = 0x17, |
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ReadKeypad = 0x18, |
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SetFanPowerFailSafe = 0x19, |
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SetFanTachometerGlitchFilter = 0x1a, |
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QueryFanPowerAndFailSafeMask = 0x1b, |
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SetATXPowerSwitchFunctionality = 0x1c, |
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EnableDisableAndResetTheWatchdog = 0x1d, |
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ReadReportingAndStatus = 0x1e, |
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SendDataToLCD = 0x1f, |
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SetBaudRate = 0x21, |
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SetOrSetAndConfigureGPIOPin = 0x22, |
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ReadGPIOPinLevelsAndConfigurationState = 0x23, |
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Response = 0x40, |
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KeyActivity = 0x80, |
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FanSpeedReport = 0x81, |
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TemperatureSensorReport = 0x82, |
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Error = 0xc0, |
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}; |
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|
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uint8_t command; |
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uint8_t length; |
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uint8_t data[22]; |
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uint16_t crc; |
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|
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inline Packet() {} |
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Packet(Command command, uint8_t length, const uint8_t *data); |
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|
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inline std::string GetData() { return std::string(reinterpret_cast<char *>(data), length); } |
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}; |
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std::queue<Packet> keyActivity; |
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|
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Packet Communicate(Packet::Command command, uint8_t length = 0, const uint8_t *data = NULL); |
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inline Packet Communicate(Packet::Command command, const std::string &data) { return Communicate(command, data.size(), reinterpret_cast<const uint8_t *>(data.data())); } |
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|
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public: |
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enum CursorStyle |
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{ |
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NoCursor, |
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BlinkingBlockCursor, |
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UnderscoreCursor, |
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BlinkingBlockPlusUnderscore, |
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InvertingBlinkingBlock |
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}; |
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enum Key |
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{ |
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Up = 0x01, |
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Enter = 0x02, |
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Cancel = 0x04, |
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Left = 0x08, |
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Right = 0x10, |
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Down = 0x20, |
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}; |
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|
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Display(const std::string &device); |
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~Display() { Posix::Close(ucom); } |
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|
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bool Ping(const std::string &data = std::string()); |
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std::string Version(); |
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inline void Store() { Communicate(Packet::StoreCurrentStateAsBootState); } |
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inline void Clear() { Communicate(Packet::ClearLCDScreen); } |
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void SetCursorPosition(uint8_t column, uint8_t row); |
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void SetCursorStyle(CursorStyle style); |
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inline void SetContrast(uint8_t contrast) { Communicate(Packet::SetLCDContrast, 1, &contrast); } |
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inline void SetBacklight(uint8_t backlight) { Communicate(Packet::SetLCDAndKeypadBacklight, 1, &backlight); } |
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inline void KeyReporting(uint8_t press, uint8_t release); |
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}; |
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|
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#endif//_Display_hpp_ |
