Replace tabs with spaces

firmware/src/uart.c

@@ -6,88 +6,88 @@
 
 // Initialize UART
 void uartInit() {
-	// Set Baud register
-	UBRRH = UBRRH_VALUE;
-	UBRRL = UBRRL_VALUE;
+    // Set Baud register
+    UBRRH = UBRRH_VALUE;
+    UBRRL = UBRRL_VALUE;
 
-	// Reset status register
-	UCSRA = 0x00;
+    // Reset status register
+    UCSRA = 0x00;
 
 #if USE_2X
-	// U2X mode necessary
-	UCSRA |= (1 << U2X);
+    // U2X mode necessary
+    UCSRA |= (1 << U2X);
 #else
-	// U2X mode not necessary
-	UCSRA &= ~(1 << U2X);
+    // U2X mode not necessary
+    UCSRA &= ~(1 << U2X);
 #endif
 
-	// Enable transmitter and receiver
-	UCSRB |= (1 << TXEN) | (1 << RXEN);
+    // Enable transmitter and receiver
+    UCSRB |= (1 << TXEN) | (1 << RXEN);
 
-	// Set frame format (8 bit)
-	UCSRC = (1 << URSEL) | (1 << UCSZ1) | (1 << UCSZ0);
+    // Set frame format (8 bit)
+    UCSRC = (1 << URSEL) | (1 << UCSZ1) | (1 << UCSZ0);
 }
 
 // Transmit a single character
 void uartPutChar(unsigned char data) {
-	// Block until controller is ready to send
-	while (!(UCSRA & (1 << UDRE))) {
-	}
+    // Block until controller is ready to send
+    while (!(UCSRA & (1 << UDRE))) {
+    }
 
-	// Write character to UART data register
-	UDR = data;
+    // Write character to UART data register
+    UDR = data;
 }
 
 // Transmit a string
 void uartPutString(char* data) {
-	// Write characters until \0 is reached
-	while (*data) {
-		uartPutChar(*data++);
-	}
+    // Write characters until \0 is reached
+    while (*data) {
+        uartPutChar(*data++);
+    }
 }
 
 // Receive a single character (blocking)
 unsigned char uartGetChar() {
-	// Block until a character has been received
-	while (!(UCSRA & (1 << RXC))) {
-	}
+    // Block until a character has been received
+    while (!(UCSRA & (1 << RXC))) {
+    }
 
-	// Get character and return
-	return UDR;
+    // Get character and return
+    return UDR;
 }
 
 // Receive a string until \n (blocking)
 uint8_t uartGetLine(char* buffer, uint8_t maxLength) {
-	uint8_t readChars = 0;
-	unsigned char nextChar;
+    uint8_t readChars = 0;
+    unsigned char nextChar;
 
-	// Read a maximum of maxLength-1 characters (-1 because we need one char for '\0')
-	while (readChars < maxLength - 1) {
-		// Get next character
-		nextChar = uartGetChar();
+    // Read a maximum of maxLength-1 characters (-1 because we need one char for '\0')
+    while (readChars < maxLength - 1) {
+        // Get next character
+        nextChar = uartGetChar();
 
-		// Skip trailing \n and \r
-		if (nextChar == '\n' || nextChar == '\r') {
-			if (readChars == 0) {
-				// Skip trailing \n and \r
-				continue;
-			}
-			else {
-				// End line (do not append the \r or \n to the buffer)
-				break;
-			}
-		}
+        // Skip trailing \n and \r
+        if (nextChar == '\n' || nextChar == '\r') {
+            if (readChars == 0) {
+                // Skip trailing \n and \r
+                continue;
+            }
+            else {
+                // End line (do not append the \r or \n to the buffer)
+                break;
+            }
+        }
 
-		// Write character to buffer
-		*buffer++ = nextChar;
+        // Write character to buffer
+        *buffer++ = nextChar;
 
-		// Increment counter
-		readChars++;
-	}
+        // Increment counter
+        readChars++;
+    }
 
-	// Write a terminating '\0' byte
-	*buffer++ = '\0';
+    // Write a terminating '\0' byte
+    *buffer++ = '\0';
 
-	// Return number of read bytes (excluding the \0)
-	return readChars;
+    // Return number of read bytes (excluding the \0)
+    return readChars;
 }