added arduino ide GEN7 support Files

2012-02-06 14:11:25 +01:00
parent 14702089ee
commit 25cd8af536
32 changed files with 4404 additions and 0 deletions
--- a/Marlin/Gen7/cores/arduino/wiring_serial.c
+++ b/Marlin/Gen7/cores/arduino/wiring_serial.c
@@ -0,0 +1,138 @@
+/*
+  wiring_serial.c - serial functions.
+  Part of Arduino - http://www.arduino.cc/
+
+  Copyright (c) 2005-2006 David A. Mellis
+  Modified 29 January 2009, Marius Kintel for Sanguino - http://www.sanguino.cc/
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General
+  Public License along with this library; if not, write to the
+  Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+  Boston, MA  02111-1307  USA
+
+  $Id: wiring.c 248 2007-02-03 15:36:30Z mellis $
+*/
+
+
+#include "wiring_private.h"
+
+// Define constants and variables for buffering incoming serial data.  We're
+// using a ring buffer (I think), in which rx_buffer_head is the index of the
+// location to which to write the next incoming character and rx_buffer_tail
+// is the index of the location from which to read.
+#define RX_BUFFER_SIZE 128
+
+#if defined(__AVR_ATmega644P__)
+unsigned char rx_buffer[2][RX_BUFFER_SIZE];
+int rx_buffer_head[2] = {0, 0};
+int rx_buffer_tail[2] = {0, 0};
+#else
+unsigned char rx_buffer[1][RX_BUFFER_SIZE];
+int rx_buffer_head[1] = {0};
+int rx_buffer_tail[1] = {0};
+#endif
+
+
+#define BEGIN_SERIAL(uart_, baud_) \
+{ \
+    UBRR##uart_##H = ((F_CPU / 16 + baud / 2) / baud - 1) >> 8; \
+    UBRR##uart_##L = ((F_CPU / 16 + baud / 2) / baud - 1); \
+    \
+    /* reset config for UART */ \
+    UCSR##uart_##A = 0; \
+    UCSR##uart_##B = 0; \
+    UCSR##uart_##C = 0; \
+    \
+    /* enable rx and tx */ \
+    sbi(UCSR##uart_##B, RXEN##uart_);\
+    sbi(UCSR##uart_##B, TXEN##uart_);\
+    \
+    /* enable interrupt on complete reception of a byte */ \
+    sbi(UCSR##uart_##B, RXCIE##uart_); \
+    UCSR##uart_##C = _BV(UCSZ##uart_##1)|_BV(UCSZ##uart_##0); \
+    /* defaults to 8-bit, no parity, 1 stop bit */ \
+}
+
+void beginSerial(uint8_t uart, long baud)
+{
+  if (uart == 0) BEGIN_SERIAL(0, baud)
+#if defined(__AVR_ATmega644P__)
+  else BEGIN_SERIAL(1, baud)
+#endif
+}
+
+#define SERIAL_WRITE(uart_, c_) \
+    while (!(UCSR##uart_##A & (1 << UDRE##uart_))) \
+      ; \
+    UDR##uart_ = c
+
+void serialWrite(uint8_t uart, unsigned char c)
+{
+  if (uart == 0) {
+    SERIAL_WRITE(0, c);
+  }
+#if defined(__AVR_ATmega644P__)
+  else {
+    SERIAL_WRITE(1, c);
+  }
+#endif
+}
+
+int serialAvailable(uint8_t uart)
+{
+  return (RX_BUFFER_SIZE + rx_buffer_head[uart] - rx_buffer_tail[uart]) % RX_BUFFER_SIZE;
+}
+
+int serialRead(uint8_t uart)
+{
+  // if the head isn't ahead of the tail, we don't have any characters
+  if (rx_buffer_head[uart] == rx_buffer_tail[uart]) {
+    return -1;
+  } else {
+    unsigned char c = rx_buffer[uart][rx_buffer_tail[uart]];
+    rx_buffer_tail[uart] = (rx_buffer_tail[uart] + 1) % RX_BUFFER_SIZE;
+    return c;
+  }
+}
+
+void serialFlush(uint8_t uart)
+{
+  // don't reverse this or there may be problems if the RX interrupt
+  // occurs after reading the value of rx_buffer_head but before writing
+  // the value to rx_buffer_tail; the previous value of rx_buffer_head
+  // may be written to rx_buffer_tail, making it appear as if the buffer
+  // were full, not empty.
+  rx_buffer_head[uart] = rx_buffer_tail[uart];
+}
+
+#define UART_ISR(uart_) \
+ISR(USART##uart_##_RX_vect) \
+{ \
+  unsigned char c = UDR##uart_; \
+  \
+  int i = (rx_buffer_head[uart_] + 1) % RX_BUFFER_SIZE; \
+  \  
+  /* if we should be storing the received character into the location \
+     just before the tail (meaning that the head would advance to the \
+     current location of the tail), we're about to overflow the buffer \
+     and so we don't write the character or advance the head. */ \
+  if (i != rx_buffer_tail[uart_]) { \
+    rx_buffer[uart_][rx_buffer_head[uart_]] = c; \
+    rx_buffer_head[uart_] = i; \
+  } \
+}
+
+UART_ISR(0)
+#if defined(__AVR_ATmega644P__) 
+UART_ISR(1)
+#endif