fsfw/osal/rtems/Interrupt.cpp
Ulrich Mohr 575f70ba03 updating code from Flying Laptop
This is the framework of Flying Laptop OBSW version A.13.0.
2018-07-12 16:29:32 +02:00

71 lines
2.3 KiB
C++

#include "Interrupt.h"
#include <bsp_flp/bsp_flp.h>
#include "RtemsBasic.h"
ReturnValue_t Interrupt::enableInterrupt(InterruptNumber_t interruptNumber) {
volatile uint32_t* irqMask = hw_irq_mask;
uint32_t expectedValue = *irqMask | (1 << interruptNumber);
*irqMask = expectedValue;
uint32_t tempValue = *irqMask;
if (tempValue == expectedValue) {
return HasReturnvaluesIF::RETURN_OK;
} else {
return HasReturnvaluesIF::RETURN_FAILED;
}
}
ReturnValue_t Interrupt::setInterruptServiceRoutine(IsrHandler_t handler,
InterruptNumber_t interrupt, IsrHandler_t* oldHandler) {
IsrHandler_t oldHandler_local;
if (oldHandler == NULL) {
oldHandler = &oldHandler_local;
}
//+ 0x10 comes because of trap type assignment to IRQs in UT699 processor
rtems_status_code status = rtems_interrupt_catch(handler, interrupt + 0x10,
oldHandler);
return RtemsBasic::convertReturnCode(status);
}
ReturnValue_t Interrupt::disableInterrupt(InterruptNumber_t interruptNumber) {
//TODO Not implemented
return HasReturnvaluesIF::RETURN_FAILED;
}
//SHOULDDO: Make default values (edge, polarity) settable?
ReturnValue_t Interrupt::enableGpioInterrupt(InterruptNumber_t interrupt) {
volatile uint32_t* irqMask = hw_irq_mask;
uint32_t expectedValue = *irqMask | (1 << interrupt);
*irqMask = expectedValue;
uint32_t tempValue = *irqMask;
if (tempValue == expectedValue) {
volatile hw_gpio_port_t* ioPorts = hw_gpio_port;
ioPorts->direction &= ~(1 << interrupt); //Direction In
ioPorts->interrupt_edge |= 1 << interrupt; //Edge triggered
ioPorts->interrupt_polarity |= 1 << interrupt; //Trigger on rising edge
ioPorts->interrupt_mask |= 1 << interrupt; //Enable
return HasReturnvaluesIF::RETURN_OK;
} else {
return HasReturnvaluesIF::RETURN_FAILED;
}
}
ReturnValue_t Interrupt::disableGpioInterrupt(InterruptNumber_t interrupt) {
volatile uint32_t* irqMask = hw_irq_mask;
uint32_t expectedValue = *irqMask & ~(1 << interrupt);
*irqMask = expectedValue;
uint32_t tempValue = *irqMask;
if (tempValue == expectedValue) {
//Disable gpio IRQ
volatile hw_gpio_port_t* ioPorts = hw_gpio_port;
ioPorts->interrupt_mask &= ~(1 << interrupt);
return HasReturnvaluesIF::RETURN_OK;
} else {
return HasReturnvaluesIF::RETURN_FAILED;
}
}
bool Interrupt::isInterruptInProgress() {
return rtems_interrupt_is_in_progress();
}