Platform-specific devices.

2007-06-28 12:52:41 +00:00 · 2007-06-28 12:52:41 +00:00 · ae2e9f3677
commit ae2e9f3677
parent 792056e325
16 changed files with 2399 additions and 0 deletions
--- a/platform/msb430/dev/rs232.c
+++ b/platform/msb430/dev/rs232.c
@ -0,0 +1,117 @@
+/*
+ * Copyright (c) 2005, Swedish Institute of Computer Science
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * This file is part of the Contiki operating system.
+ *
+ * @(#)$Id: rs232.c,v 1.1 2007/06/28 12:52:42 nvt-se Exp $
+ */
+
+/** \addtogroup esbrs232
+ * @{ */
+
+/**
+ * \file
+ * RS232 communication device driver for the MSP430.
+ * \author Adam Dunkels <adam@sics.se>
+ *
+ * This file contains an RS232 device driver for the MSP430 microcontroller.
+ *
+ */
+
+#include <io.h>
+#include <signal.h>
+#include <string.h>
+#include "dev/msb430-uart1.h"
+#include "rs232.h"
+
+#ifndef U1IFG
+#define U1IFG	IFG2
+#endif
+
+/*---------------------------------------------------------------------------*/
+/**
+ * Initalize the RS232 port.
+ *
+ */
+void
+rs232_init(void)
+{
+//  rs232_set_speed(RS232_57600);
+  rs232_set_speed(RS232_115200);
+}
+/*---------------------------------------------------------------------------*/
+void
+rs232_send(char c)
+{
+  /* Check if the UART is in RS232 mode before sending.
+     This check can be ommitted if every access to rs232 locks the uart
+     before using it.
+  */
+
+  if (uart_mode == UART_MODE_RS232) {
+    /* Loop until the transmission buffer is available. */
+    UART_WAIT_TX();
+    /* Transmit the data. */
+    UART_TX = c;
+  }
+}
+/*---------------------------------------------------------------------------*/
+void
+rs232_set_speed(enum rs232_speed speed)
+{
+  // baud
+  const unsigned char br_table[4][3] = {
+	{0x80, 0x00, 0x00},		// 19200
+	{0x40, 0x00, 0x00},		// 38400
+	{0x2a, 0x00, 0x5b},		// 57600
+	{0x15, 0x00, 0x4a}		// 115200
+  };
+
+  uart_set_speed(UART_MODE_RS232, br_table[speed][0], 
+	br_table[speed][1], br_table[speed][2]);
+}
+/*---------------------------------------------------------------------------*/
+void
+rs232_print(char *cptr)
+{
+  // lock UART for print operation
+  if (uart_lock(UART_MODE_RS232)) {
+    while(*cptr != 0) {
+      rs232_send(*cptr);
+      ++cptr;
+    }
+    uart_unlock(UART_MODE_RS232);
+  }
+}
+/*---------------------------------------------------------------------------*/
+void
+rs232_set_input(fp_uart_handler f)
+{
+  uart_set_handler(UART_MODE_RS232, f);
+}
+/** @} */