diff options
Diffstat (limited to 'src/core/gpio.cpp')
| -rwxr-xr-x | src/core/gpio.cpp | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/src/core/gpio.cpp b/src/core/gpio.cpp index 1a7b18e..b4e6b76 100755 --- a/src/core/gpio.cpp +++ b/src/core/gpio.cpp @@ -99,4 +99,139 @@ int digitalRead(int pin) return 0; } +/***************************************************************************** + ** Function name: GPIOSetInterrupt + ** + ** Descriptions: Set interrupt sense, event, etc. + ** edge or level, 0 is edge, 1 is level + ** single or double edge, 0 is single, 1 is double + ** active high or low, etc. + ** + ** parameters: pin num, bit position, sense, single/doube, polarity + ** Returned value: None + ** + *****************************************************************************/ +void GPIOSetInterrupt(int pin, int sense, int single, int event) { + if (pin >= 0 && pin < 20) //arduinoPinAssign(0~19) + { + if (sense == 0) { + LPC_GPIO[arduino_pinAssign[pin * 2]]->IS &= ~(arduino_pinAssign[pin + * 2 + 1]); + /* single or double only applies when sense is 0(edge trigger). */ + if (single == 0) + LPC_GPIO[arduino_pinAssign[pin * 2]]->IBE + &= ~(arduino_pinAssign[pin * 2 + 1]); + else + LPC_GPIO[arduino_pinAssign[pin * 2]]->IBE + |= (arduino_pinAssign[pin * 2 + 1]); + } else + LPC_GPIO[arduino_pinAssign[pin * 2]]->IS |= (arduino_pinAssign[pin + * 2 + 1]); + + if (event == 0) + LPC_GPIO[arduino_pinAssign[pin * 2]]->IEV + &= ~(arduino_pinAssign[pin * 2 + 1]); + else + LPC_GPIO[arduino_pinAssign[pin * 2]]->IEV |= (arduino_pinAssign[pin + * 2 + 1]); + } else if (pin >= 20 && pin < 100) { + //(20~99:reserved) + } else if (pin >= 100 && pin < 200) //maryPinAssign(100~119?) + { + pin = pin - 100; + if (sense == 0) { + LPC_GPIO[mary_pinAssign[pin * 2]]->IS &= ~(mary_pinAssign[pin * 2 + + 1]); + /* single or double only applies when sense is 0(edge trigger). */ + if (single == 0) + LPC_GPIO[mary_pinAssign[pin * 2]]->IBE &= ~(mary_pinAssign[pin + * 2 + 1]); + else + LPC_GPIO[mary_pinAssign[pin * 2]]->IBE |= (mary_pinAssign[pin + * 2 + 1]); + } else + LPC_GPIO[mary_pinAssign[pin * 2]]->IS |= (mary_pinAssign[pin * 2 + + 1]); + + if (event == 0) + LPC_GPIO[mary_pinAssign[pin * 2]]->IEV &= ~(mary_pinAssign[pin * 2 + + 1]); + else + LPC_GPIO[mary_pinAssign[pin * 2]]->IEV |= (mary_pinAssign[pin * 2 + + 1]); + } + + return; +} + +void GPIOIntEnable(int pin) { + if (pin >= 0 && pin < 20) //arduinoPinAssign(0~19) + { + + LPC_GPIO[arduino_pinAssign[pin * 2]]->IE |= arduino_pinAssign[pin * 2 + + 1]; + } else if (pin >= 20 && pin < 100) { //(20~99:reserved) + } else if (pin >= 100 && pin < 200) //maryPinAssign(100~119?) + { + pin = pin - 100; + LPC_GPIO[mary_pinAssign[pin * 2]]->IE |= mary_pinAssign[pin * 2 + 1]; + } + + return; +} + +void GPIOIntDisable(int pin) { + if (pin >= 0 && pin < 20) //arduinoPinAssign(0~19) + { + + LPC_GPIO[arduino_pinAssign[pin * 2]]->IE &= ~(arduino_pinAssign[pin * 2 + + 1]); + } else if (pin >= 20 && pin < 100) {//(20~99:reserved) + } else if (pin >= 100 && pin < 200) //maryPinAssign(100~119?) + { + pin = pin - 100; + LPC_GPIO[mary_pinAssign[pin * 2]]->IE &= ~(mary_pinAssign[pin * 2 + 1]); + } + return; +} + +int GPIOIntStatus(int pin) { + int regVal = 0; + + if (pin >= 0 && pin < 20) //arduinoPinAssign(0~19) + { + if (LPC_GPIO[arduino_pinAssign[pin * 2]]->MIS + & arduino_pinAssign[pin * 2 + 1]) { + regVal = 1; + } + } else if (pin >= 20 && pin < 100) { //(20~99:reserved) + } else if (pin >= 100 && pin < 200) //maryPinAssign(100~119?) + { + pin = pin - 100; + + if (LPC_GPIO[mary_pinAssign[pin * 2]]->MIS + & mary_pinAssign[pin * 2 + 1]) { + regVal = 1; + } + } + + return regVal; +} + +void GPIOIntClear(int pin) { + if (pin >= 0 && pin < 20) //arduinoPinAssign(0~19) + { + + LPC_GPIO[arduino_pinAssign[pin * 2]]->IC |= arduino_pinAssign[pin * 2 + + 1]; + } else if (pin >= 20 && pin < 100) { //(20~99:reserved) + + } else if (pin >= 100 && pin < 200) //maryPinAssign(100~119?) + { + pin = pin - 100; + LPC_GPIO[mary_pinAssign[pin * 2]]->IC |= mary_pinAssign[pin * 2 + 1]; + } + + return; +} |