osd-contiki/examples/osd/led-strip/led-strip.c

161 lines
4.3 KiB
C
Raw Normal View History

/*
* Copyright (c) 2014-15, Ralf Schlatterbeck Open Source Consulting
* 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.
*/
/**
* \file
* LED-strip driver for Seeed Studio LED-Strip
* \author
* Ralf Schlatterbeck <rsc@runtux.com>
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include "contiki.h"
#include "contiki-net.h"
#include "rest-engine.h"
#include "generic_resource.h"
/*
* Resources to be activated need to be imported through the extern keyword.
* The build system automatically compiles the resources in the
* corresponding sub-directory.
*/
#if PLATFORM_HAS_BATTERY
#include "dev/battery-sensor.h"
extern resource_t res_battery;
#endif
#if PLATFORM_HAS_RADIO
#include "dev/radio-sensor.h"
extern resource_t res_radio;
#endif
#include "LED_Strip_Suli.h"
int color_rgb [3] = {0, 255, 0};
static uint8_t name_to_offset (const char * name)
{
uint8_t offset = 0;
if (0 == strcmp (name, "green")) {
offset = 1;
} else if (0 == strcmp (name, "blue")) {
offset = 2;
}
return offset;
}
static size_t
color_to_string (const char *name, uint8_t is_json, char *buf, size_t bsize)
{
char *fmt = "%d";
if (is_json) {
fmt = "\"%d\"";
}
return snprintf (buf, bsize, fmt, color_rgb [name_to_offset (name)]);
}
void color_from_string (const char *name, const char *s)
{
color_rgb [name_to_offset (name)] = atoi (s);
led_strip_begin ();
led_strip_set_color (color_rgb [0], color_rgb [1], color_rgb [2]);
led_strip_end ();
printf ("Set to R:%d G:%d B:%d\n"
, color_rgb [0], color_rgb [1], color_rgb [2])
;
}
GENERIC_RESOURCE
( red
, RED_LED
, s
, color_from_string
, color_to_string
);
GENERIC_RESOURCE
( green
, GREEN_LED
, s
, color_from_string
, color_to_string
);
GENERIC_RESOURCE
( blue
, BLUE_LED
, s
, color_from_string
, color_to_string
);
PROCESS(led_strip, "LED Strip Example");
AUTOSTART_PROCESSES(&led_strip);
PROCESS_THREAD(led_strip, ev, data)
{
PROCESS_BEGIN();
/* Initialize the REST engine. */
rest_init_engine ();
printf ("Initialized\n");
led_strip_init (3, 14);
led_strip_begin ();
led_strip_set_color (color_rgb [0], color_rgb [1], color_rgb [2]);
led_strip_end ();
printf ("Set to R:%d G:%d B:%d\n"
, color_rgb [0], color_rgb [1], color_rgb [2])
;
/* Activate the application-specific resources. */
#if PLATFORM_HAS_BATTERY
SENSORS_ACTIVATE(battery_sensor);
rest_activate_resource (&res_battery,"s/battery");
#endif
rest_activate_resource (&res_red, "led/R");
rest_activate_resource (&res_green, "led/G");
rest_activate_resource (&res_blue, "led/B");
/* Define application-specific events here. */
/* Don't do anything for now, everything done in resources */
while(1) {
PROCESS_WAIT_EVENT();
} /* while (1) */
PROCESS_END();
}