Contiki 2.5
leds-arch.c
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1 /*
2  * Copyright (c) 2009, University of Colombo School of Computing
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  * notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  * notice, this list of conditions and the following disclaimer in the
12  * documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the Institute nor the names of its contributors
14  * may be used to endorse or promote products derived from this software
15  * without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * This file is part of the Contiki operating system.
30  *
31  * @(#)$$
32  */
33 
34 /**
35  * \file
36  * LED architecture of the MICAz port.
37  * \author
38  * Kasun Hewage <kasun.ch@gmail.com>
39  */
40 
41 #include "contiki-conf.h"
42 #include "dev/leds.h"
43 #include <avr/io.h>
44 
45 
46 /*---------------------------------------------------------------------------*/
47 void leds_arch_init(void)
48 {
49  LEDS_PxDIR |= (LEDS_CONF_RED | LEDS_CONF_GREEN | LEDS_CONF_YELLOW);
50  LEDS_PxOUT |= (LEDS_CONF_RED | LEDS_CONF_GREEN | LEDS_CONF_YELLOW);
51 }
52 /*---------------------------------------------------------------------------*/
53 unsigned char leds_arch_get(void)
54 {
55  return ((LEDS_PxOUT & LEDS_CONF_RED) ? 0 : LEDS_RED)
56  | ((LEDS_PxOUT & LEDS_CONF_GREEN) ? 0 : LEDS_GREEN)
57  | ((LEDS_PxOUT & LEDS_CONF_YELLOW) ? 0 : LEDS_YELLOW);
58 }
59 /*---------------------------------------------------------------------------*/
60 void leds_arch_set(unsigned char leds)
61 {
62  LEDS_PxOUT = (LEDS_PxOUT & ~(LEDS_CONF_RED|LEDS_CONF_GREEN|LEDS_CONF_YELLOW))
63  | ((leds & LEDS_RED) ? 0 : LEDS_CONF_RED)
64  | ((leds & LEDS_GREEN) ? 0 : LEDS_CONF_GREEN)
65  | ((leds & LEDS_YELLOW) ? 0 : LEDS_CONF_YELLOW);
66 }
67 /*---------------------------------------------------------------------------*/