| 1 |
// Display (Crystalfontz CFA-635 USB LCD) |
| 2 |
// |
| 3 |
// Douglas Thrift |
| 4 |
// |
| 5 |
// $Id$ |
| 6 |
|
| 7 |
#ifndef _Display_hpp_ |
| 8 |
#define _Display_hpp_ |
| 9 |
|
| 10 |
#include <posix.hpp> |
| 11 |
#include <truck.hpp> |
| 12 |
|
| 13 |
#include <queue> |
| 14 |
|
| 15 |
class Display |
| 16 |
{ |
| 17 |
int ucom; |
| 18 |
struct Packet |
| 19 |
{ |
| 20 |
enum Command |
| 21 |
{ |
| 22 |
PingCommand = 0x00, |
| 23 |
GetHardwareAndFirmwareVersion = 0x01, |
| 24 |
WriteUserFlashArea = 0x02, |
| 25 |
ReadUserFlashArea = 0x03, |
| 26 |
StoreCurrentStateAsBootState = 0x04, |
| 27 |
RebootResetHostOrPowerOffHost = 0x05, |
| 28 |
ClearLCDScreen = 0x06, |
| 29 |
SetLCDSpecialCharacterData = 0x09, |
| 30 |
Read8ByesOfLCDMemory = 0x0a, |
| 31 |
SetLCDCursorPosition = 0x0b, |
| 32 |
SetLCDCursorStyle = 0x0c, |
| 33 |
SetLCDContrast = 0x0d, |
| 34 |
SetLCDAndKeypadBacklight = 0x0e, |
| 35 |
SetUpFanReporting = 0x10, |
| 36 |
SetFanPower = 0x11, |
| 37 |
ReadDOWDeviceInformation = 0x12, |
| 38 |
SetUpTemperatureReporting = 0x13, |
| 39 |
ArbitraryDOWTransaction = 0x14, |
| 40 |
SendCommandDirectlyToTheLCDController = 0x16, |
| 41 |
ConfigureKeyReporting = 0x17, |
| 42 |
ReadKeypad = 0x18, |
| 43 |
SetFanPowerFailSafe = 0x19, |
| 44 |
SetFanTachometerGlitchFilter = 0x1a, |
| 45 |
QueryFanPowerAndFailSafeMask = 0x1b, |
| 46 |
SetATXPowerSwitchFunctionality = 0x1c, |
| 47 |
EnableDisableAndResetTheWatchdog = 0x1d, |
| 48 |
ReadReportingAndStatus = 0x1e, |
| 49 |
SendDataToLCD = 0x1f, |
| 50 |
SetBaudRate = 0x21, |
| 51 |
SetOrSetAndConfigureGPIOPin = 0x22, |
| 52 |
ReadGPIOPinLevelsAndConfigurationState = 0x23, |
| 53 |
Response = 0x40, |
| 54 |
KeyActivity = 0x80, |
| 55 |
FanSpeedReport = 0x81, |
| 56 |
TemperatureSensorReport = 0x82, |
| 57 |
Error = 0xc0, |
| 58 |
}; |
| 59 |
|
| 60 |
uint8_t command; |
| 61 |
uint8_t length; |
| 62 |
uint8_t data[22]; |
| 63 |
uint16_t crc; |
| 64 |
|
| 65 |
inline Packet() {} |
| 66 |
Packet(Command command, uint8_t length, const uint8_t *data); |
| 67 |
|
| 68 |
inline std::string GetData() { return std::string(reinterpret_cast<char *>(data), length); } |
| 69 |
}; |
| 70 |
std::queue<Packet> keyActivity; |
| 71 |
|
| 72 |
inline Packet Communicate(Packet::Command command) { return Communicate_(command, 0, reinterpret_cast<const uint8_t *>(NULL)); } |
| 73 |
template <typename Arg0> |
| 74 |
Packet Communicate(Packet::Command command, Arg0 arg0); |
| 75 |
template <typename Arg0, typename Arg1> |
| 76 |
Packet Communicate(Packet::Command command, Arg0 arg0, Arg1 arg1); |
| 77 |
template <typename Arg0, typename Arg1, typename Arg2> |
| 78 |
Packet Communicate(Packet::Command command, Arg0 arg0, Arg1 arg1, Arg2 arg2); |
| 79 |
Packet Communicate_(Packet::Command command, uint8_t length, const uint8_t *data); |
| 80 |
|
| 81 |
public: |
| 82 |
enum CursorStyle |
| 83 |
{ |
| 84 |
NoCursor = 0, |
| 85 |
BlinkingBlockCursor = 1, |
| 86 |
UnderscoreCursor = 2, |
| 87 |
BlinkingBlockPlusUnderscore = 3, |
| 88 |
InvertingBlinkingBlock = 4, |
| 89 |
}; |
| 90 |
enum Key |
| 91 |
{ |
| 92 |
Up = 0x01, |
| 93 |
Enter = 0x02, |
| 94 |
Cancel = 0x04, |
| 95 |
Left = 0x08, |
| 96 |
Right = 0x10, |
| 97 |
Down = 0x20, |
| 98 |
}; |
| 99 |
enum Color |
| 100 |
{ |
| 101 |
Green = 1, |
| 102 |
Red = 0, |
| 103 |
}; |
| 104 |
|
| 105 |
Display(const std::string &device); |
| 106 |
~Display() { Posix::Close(ucom); } |
| 107 |
|
| 108 |
bool Ping(const std::string &data = std::string()); |
| 109 |
std::string Version(); |
| 110 |
inline void Store() { Communicate(Packet::StoreCurrentStateAsBootState); } |
| 111 |
inline void Clear() { Communicate(Packet::ClearLCDScreen); } |
| 112 |
inline void SetCursorPosition(uint8_t column, uint8_t row) { Communicate(Packet::SetLCDCursorPosition, column, row); } |
| 113 |
inline void SetCursorStyle(CursorStyle style) { Communicate(Packet::SetLCDCursorStyle, style); } |
| 114 |
inline void SetContrast(uint8_t contrast) { Communicate(Packet::SetLCDContrast, contrast); } |
| 115 |
inline void SetBacklight(uint8_t backlight) { Communicate(Packet::SetLCDAndKeypadBacklight, backlight); } |
| 116 |
inline void KeyReporting(uint8_t press, uint8_t release) { Communicate(Packet::ConfigureKeyReporting, press, release); } |
| 117 |
void Set(uint8_t column, uint8_t row, const std::string &data); |
| 118 |
void Set(uint8_t led, Color color, uint8_t brightness) { Communicate(Packet::SetOrSetAndConfigureGPIOPin, 12 - (led << 1) - color, brightness); } |
| 119 |
}; |
| 120 |
|
| 121 |
template <typename Arg0> |
| 122 |
inline Display::Packet Display::Communicate(Packet::Command command, Arg0 arg0) |
| 123 |
{ |
| 124 |
uint8_t data(arg0); |
| 125 |
|
| 126 |
return Communicate_(command, 1, &data); |
| 127 |
} |
| 128 |
|
| 129 |
template <> |
| 130 |
inline Display::Packet Display::Communicate(Packet::Command command, const std::string &string) |
| 131 |
{ |
| 132 |
return Communicate_(command, string.size(), reinterpret_cast<const uint8_t *>(string.data())); |
| 133 |
} |
| 134 |
|
| 135 |
template <typename Arg0, typename Arg1> |
| 136 |
inline Display::Packet Display::Communicate(Packet::Command command, Arg0 arg0, Arg1 arg1) |
| 137 |
{ |
| 138 |
uint8_t data[] = { arg0, arg1 }; |
| 139 |
|
| 140 |
return Communicate_(command, 2, data); |
| 141 |
} |
| 142 |
|
| 143 |
template <typename Arg0, typename Arg1, typename Arg2> |
| 144 |
inline Display::Packet Display::Communicate(Packet::Command command, Arg0 arg0, Arg1 arg1, Arg2 arg2) |
| 145 |
{ |
| 146 |
uint8_t data[] = { arg0, arg1, arg2 }; |
| 147 |
|
| 148 |
return Communicate_(command, 2, data); |
| 149 |
} |
| 150 |
|
| 151 |
template <> |
| 152 |
inline Display::Packet Display::Communicate(Packet::Command command, uint8_t arg0, uint8_t arg1, const std::string &string) |
| 153 |
{ |
| 154 |
uint8_t data[] = { arg0, arg1 }; |
| 155 |
|
| 156 |
return Communicate_(command, 2 + string.size(), reinterpret_cast<const uint8_t *>((reinterpret_cast<const char *>(data) + string).data())); |
| 157 |
} |
| 158 |
|
| 159 |
#endif//_Display_hpp_ |
