nes-proj/os/services/ipso-objects/ipso-leds-control.c

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/*
* Copyright (c) 2015, Yanzi Networks AB.
* 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 copyright holder 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 COPYRIGHT HOLDER 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
* COPYRIGHT HOLDER 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.
*/
/**
* \addtogroup ipso-objects
* @{
*
*/
/**
* \file
* Implementation of OMA LWM2M / IPSO Light Control for LEDs
* \author
* Joakim Eriksson <joakime@sics.se>
* Niclas Finne <nfi@sics.se>
*/
#include "lwm2m-object.h"
#include "lwm2m-engine.h"
#include "ipso-control-template.h"
#include "dev/leds.h"
#include <stdint.h>
#define DEBUG 0
#if DEBUG
#include <stdio.h>
#define PRINTF(...) printf(__VA_ARGS__)
#else
#define PRINTF(...)
#endif
#if LEDS_ALL & LEDS_BLUE || LEDS_ALL & LEDS_RED || LEDS_ALL & LEDS_BLUE
#define LEDS_CONTROL_NUMBER (((LEDS_ALL & LEDS_BLUE) ? 1 : 0) + ((LEDS_ALL & LEDS_RED) ? 1 : 0) + ((LEDS_ALL & LEDS_GREEN) ? 1 : 0))
#else
#define LEDS_CONTROL_NUMBER 1
#endif
typedef struct led_state {
ipso_control_t control;
uint8_t led_value;
} led_state_t;
static led_state_t leds_controls[LEDS_CONTROL_NUMBER];
/*---------------------------------------------------------------------------*/
static lwm2m_status_t
set_value(ipso_control_t *control, uint8_t value)
{
led_state_t *state;
state = (led_state_t *)control;
#if PLATFORM_HAS_LEDS
if(value) {
leds_on(state->led_value);
} else {
leds_off(state->led_value);
}
#endif /* PLATFORM_HAS_LEDS */
return LWM2M_STATUS_OK;
}
/*---------------------------------------------------------------------------*/
static int
bit_no(int bit)
{
int i;
for(i = 0; i < 8; i++) {
if(LEDS_ALL & (1 << i)) {
if(bit == 0) {
/* matching bit */
return 1 << i;
} else {
/* matching but used */
bit--;
}
}
}
return 0;
}
/*---------------------------------------------------------------------------*/
void
ipso_leds_control_init(void)
{
ipso_control_t *c;
int i;
/* Initialize the instances */
for(i = 0; i < LEDS_CONTROL_NUMBER; i++) {
c = &leds_controls[i].control;
c->reg_object.object_id = 3311;
c->reg_object.instance_id = i;
c->set_value = set_value;
leds_controls[i].led_value = bit_no(i);
ipso_control_add(c);
}
PRINTF("IPSO leds control initialized with %u instances\n",
LEDS_CONTROL_NUMBER);
}
/*---------------------------------------------------------------------------*/
/** @} */