85 lines
2.8 KiB
C
85 lines
2.8 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2006, 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.
|
||
|
|
*
|
||
|
|
* @(#)$Id: minileds.c,v 1.1 2006/09/27 09:32:08 bg- Exp $
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Minileds is intended to substitute the full leds package when only
|
||
|
|
* a small portion of the full functionality is required. It is
|
||
|
|
* intended to be syntactically compatible but with a simplified
|
||
|
|
* semantics. The semantic difference lies in not counting the number
|
||
|
|
* of leds_on and leds_off:s. It saves a substantial amount of RAM
|
||
|
|
* (820 bytes on a msp430).
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "contiki.h"
|
||
|
|
#include "dev/leds.h"
|
||
|
|
|
||
|
|
void
|
||
|
|
leds_init(void)
|
||
|
|
{
|
||
|
|
LEDS_PxDIR |= (LEDS_CONF_RED | LEDS_CONF_GREEN | LEDS_CONF_YELLOW);
|
||
|
|
LEDS_PxOUT |= (LEDS_CONF_RED | LEDS_CONF_GREEN | LEDS_CONF_YELLOW);
|
||
|
|
}
|
||
|
|
|
||
|
|
static const unsigned char l2p[LEDS_ALL + 1] = {
|
||
|
|
0,
|
||
|
|
LEDS_CONF_GREEN,
|
||
|
|
LEDS_CONF_YELLOW,
|
||
|
|
LEDS_CONF_YELLOW | LEDS_CONF_GREEN,
|
||
|
|
LEDS_CONF_RED,
|
||
|
|
LEDS_CONF_RED | LEDS_CONF_GREEN,
|
||
|
|
LEDS_CONF_RED | LEDS_CONF_YELLOW,
|
||
|
|
LEDS_CONF_RED | LEDS_CONF_YELLOW | LEDS_CONF_GREEN
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
void
|
||
|
|
leds_on(unsigned char leds)
|
||
|
|
{
|
||
|
|
LEDS_PxOUT &= ~l2p[leds & LEDS_ALL];
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
leds_off(unsigned char leds)
|
||
|
|
{
|
||
|
|
LEDS_PxOUT |= l2p[leds & LEDS_ALL];
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
leds_toggle(unsigned char leds)
|
||
|
|
{
|
||
|
|
/*
|
||
|
|
* Synonym: void leds_invert(unsigned char leds);
|
||
|
|
*/
|
||
|
|
asm(".global leds_invert\nleds_invert:\n");
|
||
|
|
|
||
|
|
LEDS_PxOUT ^= l2p[leds & LEDS_ALL];
|
||
|
|
}
|