diff options
Diffstat (limited to 'src/core/gpio_int.cpp')
| -rw-r--r-- | src/core/gpio_int.cpp | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/src/core/gpio_int.cpp b/src/core/gpio_int.cpp new file mode 100644 index 0000000..9b46a4f --- /dev/null +++ b/src/core/gpio_int.cpp @@ -0,0 +1,154 @@ +#include "gpio.h" +#include "uart.h" + +#define EXTERNAL_NUM_INTERRUPTS 20 +volatile static USER_GPIO_FUNC intFunc[EXTERNAL_NUM_INTERRUPTS]; + +void attachInterrupt(int pin, USER_GPIO_FUNC func, digitalWriteState mode) { + pinMode(pin, INPUT); + + switch (mode) { + case LOW: + GPIOSetInterrupt(pin, 1, 0, 0); + break; + case HIGH: + GPIOSetInterrupt(pin, 1, 0, 1); + break; + case CHANGE: + GPIOSetInterrupt(pin, 0, 1, 0); + break; + case RISING: + GPIOSetInterrupt(pin, 0, 0, 1); + break; + case FALLING: + GPIOSetInterrupt(pin, 0, 0, 0); + break; + default: + break; + } + + + if (pin >= 0 && pin < 20) //arduinoPinAssign(0~19) + { + intFunc[pin] = func; + + switch (arduino_pinAssign[pin * 2]) { + case 0: + NVIC_EnableIRQ(EINT0_IRQn); + break; + case 1: + NVIC_EnableIRQ(EINT1_IRQn); + break; + case 2: + NVIC_EnableIRQ(EINT2_IRQn); + break; + case 3: + NVIC_EnableIRQ(EINT3_IRQn); + break; + } + } else if (pin >= 20 && pin < 100) { + //(20~99:reserved) + } else if (pin >= 100 && pin < 200) //maryPinAssign(100~119?) + { + pin = pin - 100; + intFunc[pin] = func; + + switch (mary_pinAssign[pin * 2]) { + case 0: + NVIC_EnableIRQ(EINT0_IRQn); + break; + case 1: + NVIC_EnableIRQ(EINT1_IRQn); + break; + case 2: + NVIC_EnableIRQ(EINT2_IRQn); + break; + case 3: + NVIC_EnableIRQ(EINT3_IRQn); + break; + } + } + + GPIOIntEnable(pin); + + return; +} + +void detachInterrupt(int pin) { + GPIOIntDisable(pin); + + if (pin >= 0 && pin < 20) //arduinoPinAssign(0~19) + { + intFunc[pin] = 0; + if (LPC_GPIO[arduino_pinAssign[pin * 2]]->IE == 0) { + switch (arduino_pinAssign[pin * 2]) { + case 0: + NVIC_DisableIRQ(EINT0_IRQn); + break; + case 1: + NVIC_DisableIRQ(EINT1_IRQn); + break; + case 2: + NVIC_DisableIRQ(EINT2_IRQn); + break; + case 3: + NVIC_DisableIRQ(EINT3_IRQn); + break; + } + } + } + else if (pin >= 20 && pin < 100) {//(20~99:reserved) + } else if (pin >= 100 && pin < 200) //maryPinAssign(100~119?) + { + pin = pin - 100; + intFunc[pin] = 0; + if (LPC_GPIO[mary_pinAssign[pin * 2]]->IE == 0) { + switch (mary_pinAssign[pin * 2]) { + case 0: + NVIC_DisableIRQ(EINT0_IRQn); + break; + case 1: + NVIC_DisableIRQ(EINT1_IRQn); + break; + case 2: + NVIC_DisableIRQ(EINT2_IRQn); + break; + case 3: + NVIC_DisableIRQ(EINT3_IRQn); + break; + } + } + } + return; +} + +void GPIO_IRQHandler(void) { + for (int i = 0; i < EXTERNAL_NUM_INTERRUPTS; i++) { + if (GPIOIntStatus(i)) { + GPIOIntClear(i); + + if (intFunc[i]) + intFunc[i](); + } + } +} + +void PIOINT0_IRQHandler(void) { + GPIO_IRQHandler(); + return; +} + +void PIOINT1_IRQHandler(void) { + GPIO_IRQHandler(); + return; +} + +void PIOINT2_IRQHandler(void) { + GPIO_IRQHandler(); + return; +} + +void PIOINT3_IRQHandler(void) { + GPIO_IRQHandler(); + return; +} |