From 7352839d1ed1b44b888dcc107da5892dc0e26ce4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lucas=20Ple=C3=9F?= <lucas@xleave.de>
Date: Fri, 14 Jun 2013 15:03:36 +0200
Subject: [PATCH] removed unnecessary uart1 code

---
 display/software/displayboard/src/uart.c | 185 -----------------------
 1 file changed, 185 deletions(-)

diff --git a/display/software/displayboard/src/uart.c b/display/software/displayboard/src/uart.c
index 728c627..c29ef62 100644
--- a/display/software/displayboard/src/uart.c
+++ b/display/software/displayboard/src/uart.c
@@ -477,188 +477,3 @@ void uart_puts_p(const char *progmem_s )
 
 }/* uart_puts_p */
 
-
-/*
- * these functions are only for ATmegas with two USART
- */
-#if defined( ATMEGA_USART1 )
-
-ISR(UART1_RECEIVE_INTERRUPT)
-/*************************************************************************
-Function: UART1 Receive Complete interrupt
-Purpose:  called when the UART1 has received a character
-**************************************************************************/
-{
-    unsigned char tmphead;
-    unsigned char data;
-    unsigned char usr;
-    unsigned char lastRxError;
-
-
-    /* read UART status register and UART data register */
-    usr  = UART1_STATUS;
-    data = UART1_DATA;
-
-    /* */
-    lastRxError = (usr & (_BV(FE1)|_BV(DOR1)) );
-
-    /* calculate buffer index */
-    tmphead = ( UART1_RxHead + 1) & UART_RX_BUFFER_MASK;
-
-    if ( tmphead == UART1_RxTail ) {
-        /* error: receive buffer overflow */
-        lastRxError = UART_BUFFER_OVERFLOW >> 8;
-    }else{
-        /* store new index */
-        UART1_RxHead = tmphead;
-        /* store received data in buffer */
-        UART1_RxBuf[tmphead] = data;
-    }
-    UART1_LastRxError |= lastRxError;
-}
-
-
-ISR(UART1_TRANSMIT_INTERRUPT)
-/*************************************************************************
-Function: UART1 Data Register Empty interrupt
-Purpose:  called when the UART1 is ready to transmit the next byte
-**************************************************************************/
-{
-    unsigned char tmptail;
-
-
-    if ( UART1_TxHead != UART1_TxTail) {
-        /* calculate and store new buffer index */
-        tmptail = (UART1_TxTail + 1) & UART_TX_BUFFER_MASK;
-        UART1_TxTail = tmptail;
-        /* get one byte from buffer and write it to UART */
-        UART1_DATA = UART1_TxBuf[tmptail];  /* start transmission */
-    }else{
-        /* tx buffer empty, disable UDRE interrupt */
-        UART1_CONTROL &= ~_BV(UART1_UDRIE);
-    }
-}
-
-
-/*************************************************************************
-Function: uart1_init()
-Purpose:  initialize UART1 and set baudrate
-Input:    baudrate using macro UART_BAUD_SELECT()
-Returns:  none
-**************************************************************************/
-void uart1_init(unsigned int baudrate)
-{
-    UART1_TxHead = 0;
-    UART1_TxTail = 0;
-    UART1_RxHead = 0;
-    UART1_RxTail = 0;
-
-
-    /* Set baud rate */
-    if ( baudrate & 0x8000 )
-    {
-    	UART1_STATUS = (1<<U2X1);  //Enable 2x speed
-      baudrate &= ~0x8000;
-    }
-    UBRR1H = (unsigned char)(baudrate>>8);
-    UBRR1L = (unsigned char) baudrate;
-
-    /* Enable USART receiver and transmitter and receive complete interrupt */
-    UART1_CONTROL = _BV(RXCIE1)|(1<<RXEN1)|(1<<TXEN1);
-
-    /* Set frame format: asynchronous, 8data, no parity, 1stop bit */
-    #ifdef URSEL1
-    UCSR1C = (1<<URSEL1)|(3<<UCSZ10);
-    #else
-    UCSR1C = (3<<UCSZ10);
-    #endif
-}/* uart_init */
-
-
-/*************************************************************************
-Function: uart1_getc()
-Purpose:  return byte from ringbuffer
-Returns:  lower byte:  received byte from ringbuffer
-          higher byte: last receive error
-**************************************************************************/
-unsigned int uart1_getc(void)
-{
-    unsigned char tmptail;
-    unsigned char data;
-
-
-    if ( UART1_RxHead == UART1_RxTail ) {
-        return UART_NO_DATA;   /* no data available */
-    }
-
-    /* calculate /store buffer index */
-    tmptail = (UART1_RxTail + 1) & UART_RX_BUFFER_MASK;
-    UART1_RxTail = tmptail;
-
-    /* get data from receive buffer */
-    data = UART1_RxBuf[tmptail];
-
-    data = (UART1_LastRxError << 8) + data;
-    UART1_LastRxError = 0;
-    return data;
-
-}/* uart1_getc */
-
-
-/*************************************************************************
-Function: uart1_putc()
-Purpose:  write byte to ringbuffer for transmitting via UART
-Input:    byte to be transmitted
-Returns:  none
-**************************************************************************/
-void uart1_putc(unsigned char data)
-{
-    unsigned char tmphead;
-
-
-    tmphead  = (UART1_TxHead + 1) & UART_TX_BUFFER_MASK;
-
-    while ( tmphead == UART1_TxTail ){
-        ;/* wait for free space in buffer */
-    }
-
-    UART1_TxBuf[tmphead] = data;
-    UART1_TxHead = tmphead;
-
-    /* enable UDRE interrupt */
-    UART1_CONTROL    |= _BV(UART1_UDRIE);
-
-}/* uart1_putc */
-
-
-/*************************************************************************
-Function: uart1_puts()
-Purpose:  transmit string to UART1
-Input:    string to be transmitted
-Returns:  none
-**************************************************************************/
-void uart1_puts(const char *s )
-{
-    while (*s)
-      uart1_putc(*s++);
-
-}/* uart1_puts */
-
-
-/*************************************************************************
-Function: uart1_puts_p()
-Purpose:  transmit string from program memory to UART1
-Input:    program memory string to be transmitted
-Returns:  none
-**************************************************************************/
-void uart1_puts_p(const char *progmem_s )
-{
-    register char c;
-
-    while ( (c = pgm_read_byte(progmem_s++)) )
-      uart1_putc(c);
-
-}/* uart1_puts_p */
-
-
-#endif