Implement disabling keyboard matrix scanning for the left keyboard half, too.

left/src/bridge_protocol_handler.c

@@ -5,6 +5,7 @@
 #include "i2c.h"
 #include "led_pwm.h"
 #include "bridge_protocol.h"
+#include "main.h"
 
 void SetError(uint8_t error);
 void SetGenericError();
@@ -43,5 +44,9 @@ void BridgeProtocolHandler()
             uint8_t brightnessPercent = BridgeRxBuffer[1];
             LedPwm_SetBrightness(brightnessPercent);
             break;
+        case BridgeCommand_SetDisableKeyMatrixScanState:
+            BridgeTxSize = 0;
+            DisableKeyMatrixScanState = BridgeRxBuffer[1];
+            break;
     }
 }

left/src/main.c

@@ -42,6 +42,8 @@ key_matrix_t keyMatrix = {
 #endif
 };
 
+volatile bool DisableKeyMatrixScanState;
+
 typedef struct BootloaderConfiguration
 {
     uint32_t tag;                          // Magic number to verify bootloader configuration is valid. Must be set to 'kcfg'.
@@ -86,7 +88,9 @@ int main(void)
     KeyMatrix_Init(&keyMatrix);
 
     while (1) {
-        KeyMatrix_Scan(&keyMatrix);
+        if (!DisableKeyMatrixScanState) {
+            KeyMatrix_Scan(&keyMatrix);
+        }
         asm("wfi");
     }
 }

left/src/main.h

@@ -13,5 +13,6 @@
 // Variables:
 
     extern key_matrix_t keyMatrix;
+    extern volatile bool DisableKeyMatrixScanState;
 
 #endif

right/src/bridge_slaves/bridge_slave_uhk_module.c

@@ -4,6 +4,7 @@
 #include "bridge_protocol.h"
 #include "main.h"
 #include "peripherals/test_led.h"
+#include "test_states.h"
 
 uhk_module_state_t UhkModuleStates[UHK_MODULE_MAX_COUNT];
 uhk_module_field_t currentUhkModuleField = UhkModuleField_SendKeystatesRequestCommand;
@@ -44,6 +45,12 @@ bool BridgeSlaveUhkModuleHandler(uint8_t uhkModuleId)
             txBuffer[0] = BridgeCommand_SetTestLed;
             txBuffer[1] = uhkModuleInternalState->isTestLedOn;
             I2cAsyncWrite(I2C_ADDRESS_LEFT_KEYBOARD_HALF, txBuffer, 2);
+            currentUhkModuleField = UhkModuleField_SendDisableKeyMatrixScanState;
+            break;
+        case UhkModuleField_SendDisableKeyMatrixScanState:
+            txBuffer[0] = BridgeCommand_SetDisableKeyMatrixScanState;
+            txBuffer[1] = TestStates.disableKeyMatrixScan;
+            I2cAsyncWrite(I2C_ADDRESS_LEFT_KEYBOARD_HALF, txBuffer, 2);
             currentUhkModuleField = UhkModuleField_SendKeystatesRequestCommand;
             break;
     }

right/src/bridge_slaves/bridge_slave_uhk_module.h

@@ -16,6 +16,7 @@
         UhkModuleField_ReceiveKeystates,
         UhkModuleField_SendPwmBrightnessCommand,
         UhkModuleField_SendTestLedCommand,
+        UhkModuleField_SendDisableKeyMatrixScanState,
     } uhk_module_field_t;
 
     typedef struct {

right/src/main.c

@@ -12,6 +12,7 @@
 #include "bus_pal_hardware.h"
 #include "bootloader_config.h"
 #include "command.h"
+#include "test_states.h"
 
 key_matrix_t KeyMatrix = {
     .colNum = KEYBOARD_MATRIX_COLS_NUM,
@@ -75,7 +76,10 @@ void UpdateUsbReports()
     ResetActiveUsbMediaKeyboardReport();
     ResetActiveUsbSystemKeyboardReport();
 
-    KeyMatrix_Scan(&KeyMatrix);
+    if (!TestStates.disableKeyMatrixScan) {
+        KeyMatrix_Scan(&KeyMatrix);
+    }
+
     memcpy(CurrentKeyStates[SLOT_ID_RIGHT_KEYBOARD_HALF], KeyMatrix.keyStates, MAX_KEY_COUNT_PER_MODULE);
     UpdateActiveUsbReports();
 

shared/bridge_protocol.h

@@ -7,6 +7,7 @@
         BridgeCommand_GetKeyStates,
         BridgeCommand_SetTestLed,
         BridgeCommand_SetLedPwmBrightness,
+        BridgeCommand_SetDisableKeyMatrixScanState,
     } bridge_command_t;
 
 #endif

shared/key_matrix.c

@@ -1,6 +1,5 @@
 #include "fsl_gpio.h"
 #include "key_matrix.h"
-#include "test_states.h"
 
 void KeyMatrix_Init(key_matrix_t *keyMatrix)
 {
@@ -21,10 +20,6 @@ void KeyMatrix_Init(key_matrix_t *keyMatrix)
 
 void KeyMatrix_Scan(key_matrix_t *keyMatrix)
 {
-    if (TestStates.disableKeyMatrixScan) {
-        return;
-    }
-
     uint8_t *keyState = keyMatrix->keyStates;
 
     key_matrix_pin_t *rowEnd = keyMatrix->rows + keyMatrix->rowNum;