mirror of https://github.com/rusefi/rusefi-1.git
127 lines
4.6 KiB
C++
127 lines
4.6 KiB
C++
/**
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* @file joystick.cpp
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*
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* See lcd_controller.cpp for more information
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* See void onJoystick(joystick_button_e button)
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*
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* TODO: separate EXTI layer from joystick logic
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* You cannot use two pins with same index for EXTI (for instance PA5 and PE5) since these would
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* be using same EXTI line. See https://stm32f4-discovery.net/2014/08/stm32f4-external-interrupts-tutorial/
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* See also comments in digital_input_icu.cpp
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*
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* @date Jan 2, 2015
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* @author Andrey Belomutskiy, (c) 2012-2020
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*/
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#include "pch.h"
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#if (HAL_USE_PAL && EFI_JOYSTICK)
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#include "joystick.h"
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#include "digital_input_exti.h"
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static int joyTotal = 0;
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static int joyCenter;
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static int joyA = 0;
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static int joyB = 0;
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static int joyC = 0;
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static int joyD = 0;
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// 50ms
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#define NT_EVENT_GAP US2NT(50 *1000)
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static efitick_t lastEventTime = 0;
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static bool isJitter() {
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efitick_t now = getTimeNowNt();
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if (now - lastEventTime < NT_EVENT_GAP)
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return true; // two consecutive events are probably just jitter
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lastEventTime = now;
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return false;
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}
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static void extCallback(ioportmask_t channel) {
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if (isJitter())
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return;
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joyTotal++;
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joystick_button_e button;
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// todo: I guess it's time to reduce code duplication and start working with an array
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if (channel == getHwPin("joy", engineConfiguration->joystickCenterPin)) {
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joyCenter++;
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button = JB_CENTER;
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} else if (channel == getHwPin("joy", engineConfiguration->joystickAPin)) {
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joyA++;
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button = JB_BUTTON_A;
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/* not used so far
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} else if (channel == getHwPin("joy", engineConfiguration->joystickBPin)) {
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joyB++;
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button = JB_BUTTON_B;
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} else if (channel == getHwPin("joy", engineConfiguration->joystickCPin)) {
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joyC++;
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button = JB_BUTTON_C;
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*/
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} else if (channel == getHwPin("joy", engineConfiguration->joystickDPin)) {
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joyD++;
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button = JB_BUTTON_D;
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} else {
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// unexpected channel
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return;
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}
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#if EFI_HD44780_LCD
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onJoystick(button);
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#else
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UNUSED(button);
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#endif
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}
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static void joystickInfo() {
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efiPrintf("total %d center=%d@%s", joyTotal, joyCenter,
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hwPortname(engineConfiguration->joystickCenterPin));
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efiPrintf("a=%d@%s", joyA, hwPortname(engineConfiguration->joystickAPin));
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efiPrintf("b=%d@%s", joyB, hwPortname(engineConfiguration->joystickBPin));
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efiPrintf("c=%d@%s", joyC, hwPortname(engineConfiguration->joystickCPin));
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efiPrintf("d=%d@%s", joyD, hwPortname(engineConfiguration->joystickDPin));
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}
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static bool isJoystickEnabled() {
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return (isBrainPinValid(engineConfiguration->joystickCenterPin) &&
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isBrainPinValid(engineConfiguration->joystickAPin) &&
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// not used so far isBrainPinValid(engineConfiguration->joystickBPin) &&
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// not used so far isBrainPinValid(engineConfiguration->joystickCPin) &&
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isBrainPinValid(engineConfiguration->joystickDPin));
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}
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void stopJoystickPins() {
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// todo: should be 'efiExtiDisablePin' or smth?
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efiSetPadUnused(activeConfiguration.joystickCenterPin);
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efiSetPadUnused(activeConfiguration.joystickAPin);
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efiSetPadUnused(activeConfiguration.joystickDPin);
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}
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void startJoystickPins() {
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// todo: extract 'configurePalInputPin() method?
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// input capture driver would claim pin ownership so we are not using 'efiSetPadMode' here
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efiSetPadModeWithoutOwnershipAcquisition("joy center", engineConfiguration->joystickCenterPin, PAL_MODE_INPUT_PULLUP);
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efiSetPadModeWithoutOwnershipAcquisition("joy A", engineConfiguration->joystickAPin, PAL_MODE_INPUT_PULLUP);
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// not used so far efiSetPadModeWithoutOwnershipAcquisition("joy B", engineConfiguration->joystickBPin, PAL_MODE_INPUT_PULLUP);
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// not used so far efiSetPadModeWithoutOwnershipAcquisition("joy C", engineConfiguration->joystickCPin, PAL_MODE_INPUT_PULLUP);
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efiSetPadModeWithoutOwnershipAcquisition("joy D", engineConfiguration->joystickDPin, PAL_MODE_INPUT_PULLUP);
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}
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void initJoystick() {
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int channel;
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addConsoleAction("joystickinfo", joystickInfo);
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if (!isJoystickEnabled())
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return;
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channel = getHwPin("joy", engineConfiguration->joystickCenterPin);
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efiExtiEnablePin("joy", engineConfiguration->joystickCenterPin, PAL_EVENT_MODE_RISING_EDGE, (palcallback_t)(void *)extCallback, (void *)channel);
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channel = getHwPin("joy", engineConfiguration->joystickAPin);
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efiExtiEnablePin("joy", engineConfiguration->joystickAPin, PAL_EVENT_MODE_RISING_EDGE, (palcallback_t)(void *)extCallback, (void *)channel);
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// not used so far applyPin(engineConfiguration->joystickBPin);
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// not used so far applyPin(engineConfiguration->joystickCPin);
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channel = getHwPin("joy", engineConfiguration->joystickDPin);
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efiExtiEnablePin("joy", engineConfiguration->joystickDPin, PAL_EVENT_MODE_RISING_EDGE, (palcallback_t)(void *)extCallback, (void *)channel);
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}
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#endif /* HAL_USE_PAL && EFI_JOYSTICK */
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