Bump version to 8.5.4, update changelog, package.json and versions.h

Adjust the behavior of sticky modifiers

CHANGELOG.md

@@ -5,6 +5,48 @@ All notable changes to this project will be documented in this file.
 The format is loosely based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to the [UHK Versioning](VERSIONING.md) conventions.
 
+## [8.5.4] - 2018-01-05
+
+Device Protocol: 4.5.0 | Module Protocol: 4.0.0 | User Config: 4.1.0 | Hardware Config: 1.0.0
+
+- Make the modifiers of shortcut keys stick only as long as the layer switcher key of a shortcut key is being held.
+
+## [8.5.3] - 2018-10-20
+
+Device Protocol: 4.5.0 | Module Protocol: 4.0.0 | User Config: 4.1.0 | Hardware Config: 1.0.0
+
+- Re-enable the I2C watchdog of the left keyboard half which was accidentally disabled starting from firmware 8.4.3. This should fix the freezes of the left keyboard half.
+
+## [8.5.2] - 2018-10-06
+
+Device Protocol: 4.5.0 | Module Protocol: 4.0.0 | User Config: 4.1.0 | Hardware Config: 1.0.0
+
+- Don't suppress keys upon keymap change.
+
+## [8.5.1] - 2018-10-04
+
+Device Protocol: 4.5.0 | Module Protocol: 4.0.0 | User Config: 4.1.0 | Hardware Config: 1.0.0
+
+- Reset UsbReportUpdateSemaphore if it gets stuck for 100ms. This should fix occasional freezes.
+
+## [8.5.0] - 2018-10-04
+
+Device Protocol: 4.**5.0** | Module Protocol: 4.0.0 | User Config: 4.1.0 | Hardware Config: 1.0.0
+
+- Send primary role modifiers consistently.
+- Only allow layer switcher keys to deactivate toggled layers.
+- Deactivate secondary roles when switching keymaps.
+- Use the correct scancode so that commas are outputted for macros.
+- Move the pointer not by 1 but by 5 pixels when testing the USB stack to make the pointer easier to see.
+- Expose UsbReportUpdateSemaphore via UsbCommand_{Get,Set}Variable() `DEVICEPROTOCOL:MINOR`
+- Extract CurrentTime and remove Timer_{Get,Set}CurrentTime()
+
+## [8.4.5] - 2018-08-21
+
+Device Protocol: 4.4.0 | Module Protocol: 4.0.0 | User Config: 4.1.0 | Hardware Config: 1.0.0
+
+- Suppress pressed keys when the layer or keymap changes.
+
 ## [8.4.4] - 2018-08-14
 
 Device Protocol: 4.4.0 | Module Protocol: 4.0.0 | User Config: 4.1.0 | Hardware Config: 1.0.0

ISSUE_TEMPLATE

@@ -0,0 +1,8 @@
+Before submitting a new issue, make sure to do the following:
+
+1. If you're using Karabiner Elements on your Mac, close it!
+2. Install the latest Agent:
+   https://github.com/UltimateHackingKeyboard/agent/releases/latest
+3. Use Agent to update to the latest firmware:
+   https://github.com/UltimateHackingKeyboard/firmware/releases/latest
+4. Try to reproduce the issue, and only report it if it still persists.

README.md

@@ -12,20 +12,23 @@ If you're one of the brave few who wants to hack the firmware then read on.
 
 `git clone --recursive git@github.com:UltimateHackingKeyboard/firmware.git`
 
-2. Download and install MCUXpresso IDE for [Linux](https://storage.googleapis.com/ugl-static/mcuxpresso-ide/mcuxpressoide-10.1.1_606.x86_64.deb.bin), [Mac](https://storage.googleapis.com/ugl-static/mcuxpresso-ide/MCUXpressoIDE_10.1.1_606.pkg), or [Windows](https://storage.googleapis.com/ugl-static/mcuxpresso-ide/MCUXpressoIDE_10.1.1_606.exe).
+2. Download and install MCUXpresso IDE for [Linux](https://storage.googleapis.com/ugl-static/mcuxpresso-ide/mcuxpressoide-10.2.1_795.x86_64.deb.bin), [Mac](https://storage.googleapis.com/ugl-static/mcuxpresso-ide/MCUXpressoIDE_10.2.1_795.pkg), or [Windows](https://storage.googleapis.com/ugl-static/mcuxpresso-ide/MCUXpressoIDE_10.2.1_795.exe).
 
 3. In the IDE, import the project by invoking *File -> Import -> General -> Existing Projects into Workspace*, select the *left* or *right* directory depending on the desired firmware, then click on the *Finish* button.
 
-## Building and flashing the firmware
+4. In order to be able to flash the firmware via USB from the IDE, you must build [Agent](https://github.com/UltimateHackingKeyboard/agent) which is Git submodule of the this repo and located in the `lib/agent` directory.
 
-For the left keyboard half, make sure to power it via the right keyboard half (which must be powered via USB). Also connect the left keyboard half to your SEGGER J-Link USB debug probe (which must also be connected via USB). Then in KDS, click on *Run -> Run Configurations*, select *GDB SEGGER J-Link Debugging -> uhk60-left_release_jlink*, and click on the *Debug* button.
+5. Finally, in the IDE, click on *Run -> External Tools -> External Tools Configurations*, then select a release firmware to be flashed such as *uhk60-right_release_kboot*, and click on the *Run* button.
 
-For the right keyboard half, flash [the bootloader](https://github.com/UltimateHackingKeyboard/bootloader) first.
+Going forward, it's easier to flash the firmware of your choice by using the downwards toolbar icon which is located rightwards of the *green play + toolbox icon*.
-
-At this point, you can flash the right firmware via USB from KDS. To achieve this, you must build [Agent](https://github.com/UltimateHackingKeyboard/agent) that is Git submodule of the this repo and located in the `lib/agent` directory.  Then in KDS, click on *Run -> Run Configurations*, select *C/C++ Application -> uhk60-right_release_kboot*, and click on the *Run* button.
-
-From this point on, you can upgrade the firmwares of both halves via USB by using the uhk60-left_release_kboot and uhk60-right_release_kboot run configurations. Alternatively, you can use your SEGGER J-Link probe.
 
 ## Contributing
 
 Want to contribute? Let us show you [how](/CONTRIBUTING.md).
+
+## Custom Firmwares
+
+The following list contains unofficial forks of the firmware. These forks provide functionality unavailable in the official firmware, but come without guarantees of any kind:
+
+- [https://github.com/kareltucek/firmware](https://github.com/kareltucek/firmware) - firmware featuring macro engine extended by a set of custom commands, allowing more advanced configurations including custom layer switching logic, doubletap bindings, alternative secondary roles etc.
+

left/src/key_scanner.c

@@ -5,9 +5,7 @@
 void KEY_SCANNER_HANDLER(void)
 {
     KeyMatrix_ScanRow(&keyMatrix);
-#ifdef I2C_WATCHDOG
     RunWatchdog();
-#endif
     LPTMR_ClearStatusFlags(KEY_SCANNER_LPTMR_BASEADDR, kLPTMR_TimerCompareFlag);
 }
 

right/src/key_states.h

@@ -13,7 +13,6 @@
         uint8_t timestamp;
         bool previous : 1;
         bool current : 1;
-        bool suppressed : 1;
         bool debouncing : 1;
     } key_state_t;
 

right/src/layer.c

@@ -70,3 +70,14 @@ layer_id_t GetActiveLayer()
 
     return heldLayer;
 }
+
+bool IsLayerHeld(void)
+{
+    for (layer_id_t layerId = LayerId_Mod; layerId <= LayerId_Mouse; layerId++) {
+        if (heldLayers[layerId]) {
+            return true;
+        }
+    }
+
+    return false;
+}

right/src/layer.h

@@ -25,6 +25,7 @@
 
 // Functions:
 
-    layer_id_t GetActiveLayer();
+    layer_id_t GetActiveLayer(void);
+    bool IsLayerHeld(void);
 
 #endif

right/src/macros.c

@@ -70,7 +70,7 @@ uint8_t characterToScancode(char character)
             return HID_KEYBOARD_SC_DOT_AND_GREATER_THAN_SIGN;
         case ',':
         case '<':
-            return HID_KEYBOARD_SC_KEYPAD_LESS_THAN_SIGN;
+            return HID_KEYBOARD_SC_COMMA_AND_LESS_THAN_SIGN;
         case '/':
         case '\?':
             return HID_KEYBOARD_SC_SLASH_AND_QUESTION_MARK;
@@ -286,7 +286,7 @@ bool processDelayAction(void)
             inDelay = false;
         }
     } else {
-        Timer_SetCurrentTime(&delayStart);
+        delayStart = CurrentTime;
         inDelay = true;
     }
     return inDelay;

right/src/timer.c

@@ -2,12 +2,13 @@
 #include "timer.h"
 #include "peripherals/test_led.h"
 
+volatile uint32_t CurrentTime;
 static uint32_t timerClockFrequency;
-static volatile uint32_t currentTime, delayLength;
+static volatile uint32_t delayLength;
 
 void PIT_TIMER_HANDLER(void)
 {
-    currentTime++;
+    CurrentTime++;
     if (delayLength) {
         --delayLength;
     }
@@ -28,15 +29,11 @@ void Timer_Init(void)
     PIT_StartTimer(PIT, PIT_TIMER_CHANNEL);
 }
 
-uint32_t Timer_GetCurrentTime() {
-    return currentTime;
-}
-
 uint32_t Timer_GetCurrentTimeMicros() {
     uint32_t primask, count, ms;
     primask = DisableGlobalIRQ(); // Make sure the read is atomic
     count = PIT_GetCurrentTimerCount(PIT, PIT_TIMER_CHANNEL); // Read the current timer count
-    ms = currentTime; // Read the overflow counter
+    ms = CurrentTime; // Read the overflow counter
     EnableGlobalIRQ(primask); // Enable interrupts again if they where enabled before - this should make it interrupt safe
 
     // Calculate the counter value in microseconds - note that the PIT timer is counting downward, so we need to subtract the count from the period value
@@ -44,11 +41,6 @@ uint32_t Timer_GetCurrentTimeMicros() {
     return ms * 1000U * TIMER_INTERVAL_MSEC + us;
 }
 
-void Timer_SetCurrentTime(uint32_t *time)
-{
-    *time = Timer_GetCurrentTime();
-}
-
 void Timer_SetCurrentTimeMicros(uint32_t *time)
 {
     *time = Timer_GetCurrentTimeMicros();
@@ -56,20 +48,18 @@ void Timer_SetCurrentTimeMicros(uint32_t *time)
 
 uint32_t Timer_GetElapsedTime(uint32_t *time)
 {
-    uint32_t elapsedTime = Timer_GetCurrentTime() - *time;
+    return CurrentTime - *time;
-    return elapsedTime;
 }
 
 uint32_t Timer_GetElapsedTimeMicros(uint32_t *time)
 {
-    uint32_t elapsedTime = Timer_GetCurrentTimeMicros() - *time;
+    return Timer_GetCurrentTimeMicros() - *time;
-    return elapsedTime;
 }
 
 uint32_t Timer_GetElapsedTimeAndSetCurrent(uint32_t *time)
 {
     uint32_t elapsedTime = Timer_GetElapsedTime(time);
-    *time = Timer_GetCurrentTime();
+    *time = CurrentTime;
     return elapsedTime;
 }
 

right/src/timer.h

@@ -9,12 +9,14 @@
 
     #define TIMER_INTERVAL_MSEC 1
 
+// Variables:
+
+   extern volatile uint32_t CurrentTime;
+
 // Functions:
 
     void Timer_Init(void);
-    uint32_t Timer_GetCurrentTime();
     uint32_t Timer_GetCurrentTimeMicros();
-    void Timer_SetCurrentTime(uint32_t *time);
     void Timer_SetCurrentTimeMicros(uint32_t *time);
     uint32_t Timer_GetElapsedTime(uint32_t *time);
     uint32_t Timer_GetElapsedTimeMicros(uint32_t *time);

right/src/usb_commands/usb_command_get_debug_buffer.c

@@ -22,7 +22,7 @@ void UsbCommand_GetDebugBuffer(void)
     SetDebugBufferUint32(13, I2cWatchdog_RecoveryCounter);
     SetDebugBufferUint32(17, MatrixScanCounter);
     SetDebugBufferUint32(21, UsbReportUpdateCounter);
-    SetDebugBufferUint32(25, Timer_GetCurrentTime());
+    SetDebugBufferUint32(25, CurrentTime);
     SetDebugBufferUint32(29, UsbGenericHidActionCounter);
     SetDebugBufferUint32(33, UsbBasicKeyboardActionCounter);
     SetDebugBufferUint32(37, UsbMediaKeyboardActionCounter);

right/src/usb_commands/usb_command_get_device_property.c

@@ -69,7 +69,7 @@ void UsbCommand_GetDeviceProperty(void)
             SetUsbTxBufferUint32(6, I2cMainBusActualBaudRateBps);
             break;
         case DevicePropertyId_Uptime:
-            SetUsbTxBufferUint32(1, Timer_GetCurrentTime());
+            SetUsbTxBufferUint32(1, CurrentTime);
             break;
         default:
             SetUsbTxBufferUint8(0, UsbStatusCode_GetDeviceProperty_InvalidProperty);

right/src/usb_commands/usb_command_get_variable.c

@@ -21,5 +21,8 @@ void UsbCommand_GetVariable(void)
         case UsbVariable_DebounceTimeRelease:
             SetUsbTxBufferUint8(1, DebounceTimeRelease);
             break;
+        case UsbVariable_UsbReportSemaphore:
+            SetUsbTxBufferUint8(1, UsbReportUpdateSemaphore);
+            break;
     }
 }

right/src/usb_commands/usb_command_set_variable.c

@@ -24,5 +24,8 @@ void UsbCommand_SetVariable(void)
         case UsbVariable_DebounceTimeRelease:
             DebounceTimeRelease = GetUsbRxBufferUint8(2);
             break;
+        case UsbVariable_UsbReportSemaphore:
+            UsbReportUpdateSemaphore = GetUsbRxBufferUint8(2);
+            break;
     }
 }

right/src/usb_protocol_handler.h

@@ -42,7 +42,8 @@
         UsbVariable_TestSwitches,
         UsbVariable_TestUsbStack,
         UsbVariable_DebounceTimePress,
-        UsbVariable_DebounceTimeRelease
+        UsbVariable_DebounceTimeRelease,
+        UsbVariable_UsbReportSemaphore,
     } usb_variable_id_t;
 
     typedef enum {

right/src/usb_report_updater.c

@@ -25,6 +25,7 @@ static uint16_t DoubleTapSwitchLayerReleaseTimeout = 200;
 
 static bool activeMouseStates[ACTIVE_MOUSE_STATES_COUNT];
 bool TestUsbStack = false;
+static key_action_t actionCache[SLOT_COUNT][MAX_KEY_COUNT_PER_MODULE];
 
 volatile uint8_t UsbReportUpdateSemaphore = 0;
 
@@ -206,15 +207,15 @@ static void handleSwitchLayerAction(key_state_t *keyState, key_action_t *action)
         doubleTapSwitchLayerKey = NULL;
     }
 
+    if (action->type != KeyActionType_SwitchLayer) {
+        return;
+    }
+
     if (!keyState->previous && isLayerDoubleTapToggled && ToggledLayer == action->switchLayer.layer) {
         ToggledLayer = LayerId_Base;
         isLayerDoubleTapToggled = false;
     }
 
-    if (action->type != KeyActionType_SwitchLayer) {
-        return;
-    }
-
     if (keyState->previous && doubleTapSwitchLayerKey == keyState &&
         Timer_GetElapsedTime(&doubleTapSwitchLayerTriggerTime) > DoubleTapSwitchLayerReleaseTimeout)
     {
@@ -225,86 +226,98 @@ static void handleSwitchLayerAction(key_state_t *keyState, key_action_t *action)
         if (doubleTapSwitchLayerKey && Timer_GetElapsedTimeAndSetCurrent(&doubleTapSwitchLayerStartTime) < DoubleTapSwitchLayerTimeout) {
             ToggledLayer = action->switchLayer.layer;
             isLayerDoubleTapToggled = true;
-            doubleTapSwitchLayerTriggerTime = Timer_GetCurrentTime();
+            doubleTapSwitchLayerTriggerTime = CurrentTime;
         } else {
             doubleTapSwitchLayerKey = keyState;
         }
-        doubleTapSwitchLayerStartTime = Timer_GetCurrentTime();
+        doubleTapSwitchLayerStartTime = CurrentTime;
     }
 }
 
 static uint8_t basicScancodeIndex = 0;
 static uint8_t mediaScancodeIndex = 0;
 static uint8_t systemScancodeIndex = 0;
-static uint8_t stickyModifiers;
+static uint8_t stickyModifiers, stickySlotId, stickyKeyId;
-
-static void applyKeyAction(key_state_t *keyState, key_action_t *action)
-{
-    if (keyState->suppressed) {
-        return;
-    }
-
-    handleSwitchLayerAction(keyState, action);
-
-    switch (action->type) {
-        case KeyActionType_Keystroke:
-            if (action->keystroke.scancode) {
-                if (!keyState->previous) {
-                    stickyModifiers = action->keystroke.modifiers;
-                }
-            } else {
-                ActiveUsbBasicKeyboardReport->modifiers |= action->keystroke.modifiers;
-            }
-            switch (action->keystroke.keystrokeType) {
-                case KeystrokeType_Basic:
-                    if (basicScancodeIndex >= USB_BASIC_KEYBOARD_MAX_KEYS || action->keystroke.scancode == 0) {
-                        break;
-                    }
-                    ActiveUsbBasicKeyboardReport->scancodes[basicScancodeIndex++] = action->keystroke.scancode;
-                    break;
-                case KeystrokeType_Media:
-                    if (mediaScancodeIndex >= USB_MEDIA_KEYBOARD_MAX_KEYS) {
-                        break;
-                    }
-                    ActiveUsbMediaKeyboardReport->scancodes[mediaScancodeIndex++] = action->keystroke.scancode;
-                    break;
-                case KeystrokeType_System:
-                    if (systemScancodeIndex >= USB_SYSTEM_KEYBOARD_MAX_KEYS) {
-                        break;
-                    }
-                    ActiveUsbSystemKeyboardReport->scancodes[systemScancodeIndex++] = action->keystroke.scancode;
-                    break;
-            }
-            break;
-        case KeyActionType_Mouse:
-            if (!keyState->previous) {
-                stickyModifiers = 0;
-            }
-            activeMouseStates[action->mouseAction] = true;
-            break;
-        case KeyActionType_SwitchLayer:
-            // Handled by handleSwitchLayerAction()
-            break;
-        case KeyActionType_SwitchKeymap:
-            if (!keyState->previous) {
-                stickyModifiers = 0;
-                SwitchKeymapById(action->switchKeymap.keymapId);
-            }
-            break;
-        case KeyActionType_PlayMacro:
-            if (!keyState->previous) {
-                stickyModifiers = 0;
-                Macros_StartMacro(action->playMacro.macroId);
-            }
-            break;
-    }
-}
-
 static uint8_t secondaryRoleState = SecondaryRoleState_Released;
 static uint8_t secondaryRoleSlotId;
 static uint8_t secondaryRoleKeyId;
 static secondary_role_t secondaryRole;
 
+static void applyKeyAction(key_state_t *keyState, key_action_t *action, uint8_t slotId, uint8_t keyId)
+{
+    if (keyState->current) {
+        handleSwitchLayerAction(keyState, action);
+
+        switch (action->type) {
+            case KeyActionType_Keystroke:
+                if (action->keystroke.scancode) {
+                    if (!keyState->previous) {
+                        stickyModifiers = action->keystroke.modifiers;
+                        stickySlotId = slotId;
+                        stickyKeyId = keyId;
+                    }
+                } else {
+                    ActiveUsbBasicKeyboardReport->modifiers |= action->keystroke.modifiers;
+                }
+                switch (action->keystroke.keystrokeType) {
+                    case KeystrokeType_Basic:
+                        if (basicScancodeIndex >= USB_BASIC_KEYBOARD_MAX_KEYS || action->keystroke.scancode == 0) {
+                            break;
+                        }
+                        ActiveUsbBasicKeyboardReport->scancodes[basicScancodeIndex++] = action->keystroke.scancode;
+                        break;
+                    case KeystrokeType_Media:
+                        if (mediaScancodeIndex >= USB_MEDIA_KEYBOARD_MAX_KEYS) {
+                            break;
+                        }
+                        ActiveUsbMediaKeyboardReport->scancodes[mediaScancodeIndex++] = action->keystroke.scancode;
+                        break;
+                    case KeystrokeType_System:
+                        if (systemScancodeIndex >= USB_SYSTEM_KEYBOARD_MAX_KEYS) {
+                            break;
+                        }
+                        ActiveUsbSystemKeyboardReport->scancodes[systemScancodeIndex++] = action->keystroke.scancode;
+                        break;
+                }
+                break;
+            case KeyActionType_Mouse:
+                if (!keyState->previous) {
+                    stickyModifiers = 0;
+                }
+                activeMouseStates[action->mouseAction] = true;
+                break;
+            case KeyActionType_SwitchLayer:
+                // Handled by handleSwitchLayerAction()
+                break;
+            case KeyActionType_SwitchKeymap:
+                if (!keyState->previous) {
+                    stickyModifiers = 0;
+                    secondaryRoleState = SecondaryRoleState_Released;
+                    SwitchKeymapById(action->switchKeymap.keymapId);
+                }
+                break;
+            case KeyActionType_PlayMacro:
+                if (!keyState->previous) {
+                    stickyModifiers = 0;
+                    Macros_StartMacro(action->playMacro.macroId);
+                }
+                break;
+        }
+    } else {
+        switch (action->type) {
+            case KeyActionType_Keystroke:
+                if (keyState->previous) {
+                    if (slotId == stickySlotId && keyId == stickyKeyId) {
+                        if (!IsLayerHeld() && !(secondaryRoleState == SecondaryRoleState_Triggered && IS_SECONDARY_ROLE_LAYER_SWITCHER(secondaryRole))) {
+                            stickyModifiers = 0;
+                        }
+                    }
+                }
+                break;
+        }
+    }
+}
+
 static void updateActiveUsbReports(void)
 {
     if (MacroPlaying) {
@@ -333,7 +346,6 @@ static void updateActiveUsbReports(void)
     if (layerChanged) {
         stickyModifiers = 0;
     }
-    bool layerGotReleased = layerChanged && activeLayer == LayerId_Base;
     LedDisplay_SetLayer(activeLayer);
 
     if (TestUsbStack) {
@@ -351,63 +363,65 @@ static void updateActiveUsbReports(void)
                 isEvenMedia = !isEvenMedia;
                 ActiveUsbMediaKeyboardReport->scancodes[mediaScancodeIndex++] = isEvenMedia ? MEDIA_VOLUME_DOWN : MEDIA_VOLUME_UP;
             }
-            MouseMoveState.xOut = isEven ? -1 : 1;
+            MouseMoveState.xOut = isEven ? -5 : 5;
         }
     }
 
     for (uint8_t slotId=0; slotId<SLOT_COUNT; slotId++) {
         for (uint8_t keyId=0; keyId<MAX_KEY_COUNT_PER_MODULE; keyId++) {
             key_state_t *keyState = &KeyStates[slotId][keyId];
-            key_action_t *action = &CurrentKeymap[activeLayer][slotId][keyId];
+            key_action_t *action;
 
             if (keyState->debouncing) {
-                if ((uint8_t)(Timer_GetCurrentTime() - keyState->timestamp) > (keyState->previous ? DebounceTimePress : DebounceTimeRelease)) {
+                if ((uint8_t)(CurrentTime - keyState->timestamp) > (keyState->previous ? DebounceTimePress : DebounceTimeRelease)) {
                     keyState->debouncing = false;
                 } else {
                     keyState->current = keyState->previous;
                 }
             } else if (keyState->previous != keyState->current) {
-                keyState->timestamp = Timer_GetCurrentTime();
+                keyState->timestamp = CurrentTime;
                 keyState->debouncing = true;
             }
 
-            if (keyState->current) {
+            if (keyState->current && !keyState->previous) {
-                if (SleepModeActive && !keyState->previous) {
+                if (SleepModeActive) {
                     WakeUpHost();
                 }
-                key_action_t *baseAction = &CurrentKeymap[LayerId_Base][slotId][keyId];
+                if (secondaryRoleState == SecondaryRoleState_Pressed) {
-                if (layerGotReleased && !(baseAction->type == KeyActionType_Keystroke && baseAction->keystroke.scancode == 0 && baseAction->keystroke.modifiers)) {
+                    // Trigger secondary role.
-                    keyState->suppressed = true;
-                }
-
-                // Trigger secondary role.
-                if (!keyState->previous && secondaryRoleState == SecondaryRoleState_Pressed) {
                     secondaryRoleState = SecondaryRoleState_Triggered;
                     keyState->current = false;
-                } else if (action->type == KeyActionType_Keystroke && action->keystroke.secondaryRole) {
+                } else {
+                    actionCache[slotId][keyId] = CurrentKeymap[activeLayer][slotId][keyId];
+                }
+            }
+
+            action = &actionCache[slotId][keyId];
+
+            if (keyState->current) {
+                if (action->type == KeyActionType_Keystroke && action->keystroke.secondaryRole) {
                     // Press released secondary role key.
                     if (!keyState->previous && secondaryRoleState == SecondaryRoleState_Released) {
                         secondaryRoleState = SecondaryRoleState_Pressed;
                         secondaryRoleSlotId = slotId;
                         secondaryRoleKeyId = keyId;
                         secondaryRole = action->keystroke.secondaryRole;
-                        keyState->suppressed = true;
                     }
                 } else {
-                    applyKeyAction(keyState, action);
+                    applyKeyAction(keyState, action, slotId, keyId);
                 }
             } else {
-                if (keyState->suppressed) {
-                    keyState->suppressed = false;
-                }
-
                 // Release secondary role key.
-                if (keyState->previous && secondaryRoleSlotId == slotId && secondaryRoleKeyId == keyId) {
+                if (keyState->previous && secondaryRoleSlotId == slotId && secondaryRoleKeyId == keyId && secondaryRoleState != SecondaryRoleState_Released) {
                     // Trigger primary role.
                     if (secondaryRoleState == SecondaryRoleState_Pressed) {
-                        applyKeyAction(keyState, action);
+                        keyState->previous = false;
+                        keyState->current = true;
+                        applyKeyAction(keyState, action, slotId, keyId);
                     }
                     secondaryRoleState = SecondaryRoleState_Released;
+                } else {
+                    applyKeyAction(keyState, action, slotId, keyId);
                 }
             }
 
@@ -433,14 +447,21 @@ uint32_t UsbReportUpdateCounter;
 
 void UpdateUsbReports(void)
 {
+    static uint32_t lastUpdateTime;
+
     for (uint8_t keyId = 0; keyId < RIGHT_KEY_MATRIX_KEY_COUNT; keyId++) {
         KeyStates[SlotId_RightKeyboardHalf][keyId].current = RightKeyMatrix.keyStates[keyId];
     }
 
     if (UsbReportUpdateSemaphore && !SleepModeActive) {
-        return;
+        if (Timer_GetElapsedTime(&lastUpdateTime) < USB_SEMAPHORE_TIMEOUT) {
+            return;
+        } else {
+            UsbReportUpdateSemaphore = 0;
+        }
     }
 
+    lastUpdateTime = CurrentTime;
     UsbReportUpdateCounter++;
 
     ResetActiveUsbBasicKeyboardReport();

right/src/usb_report_updater.h

@@ -14,6 +14,8 @@
     #define SECONDARY_ROLE_MODIFIER_TO_HID_MODIFIER(secondaryRoleModifier) (1 << ((secondaryRoleModifier) - 1))
     #define SECONDARY_ROLE_LAYER_TO_LAYER_ID(secondaryRoleLayer) ((secondaryRoleLayer) - SecondaryRole_RightSuper)
 
+    #define USB_SEMAPHORE_TIMEOUT 100 // ms
+
 // Typedefs:
 
     typedef enum {

scripts/package.json

@@ -15,8 +15,8 @@
     "commander": "^2.11.0",
     "shelljs": "^0.7.8"
   },
-  "firmwareVersion": "8.4.4",
+  "firmwareVersion": "8.5.4",
-  "deviceProtocolVersion": "4.4.0",
+  "deviceProtocolVersion": "4.5.0",
   "moduleProtocolVersion": "4.0.0",
   "userConfigVersion": "4.1.0",
   "hardwareConfigVersion": "1.0.0",

shared/versions.h

@@ -19,11 +19,11 @@
 // Variables:
 
     #define FIRMWARE_MAJOR_VERSION 8
-    #define FIRMWARE_MINOR_VERSION 4
+    #define FIRMWARE_MINOR_VERSION 5
     #define FIRMWARE_PATCH_VERSION 4
 
     #define DEVICE_PROTOCOL_MAJOR_VERSION 4
-    #define DEVICE_PROTOCOL_MINOR_VERSION 4
+    #define DEVICE_PROTOCOL_MINOR_VERSION 5
     #define DEVICE_PROTOCOL_PATCH_VERSION 0
 
     #define MODULE_PROTOCOL_MAJOR_VERSION 4