#include <stdint.h>
#include <stdlib.h>
#include "stm32fxxx.h"
#include "FreeRTOS.h"
#include "timers.h"
#include "deck.h"
#include "param.h"
/* Diodes are connected between MCU pin and VCC
* so polarity for switching on is reversed.
*/
#define LED_ON LOW
#define LED_OFF HIGH
/* Define which IOs on the expansion deck is used */
#define RED_LED DECK_GPIO_IO1
#define YELLOW_LED DECK_GPIO_IO2
#define GREEN_LED DECK_GPIO_IO3
/* Enumeration for setting different states */
typedef enum {
tf_off = 0,
tf_red = 1,
tf_yellow = 2,
tf_green = 3,
tf_all = 4
} TF;
static TF tf;
/* Timer loop and handle */
static xTimerHandle timer;
static void tfTimer(xTimerHandle timer)
{
digitalWrite(RED_LED, LED_OFF);
digitalWrite(YELLOW_LED, LED_OFF);
digitalWrite(GREEN_LED, LED_OFF);
switch (tf) {
case tf_green:
digitalWrite(GREEN_LED, LED_ON);
break;
case tf_yellow:
digitalWrite(YELLOW_LED, LED_ON);
break;
case tf_red:
digitalWrite(RED_LED, LED_ON);
break;
case tf_all:
digitalWrite(RED_LED, LED_ON);
digitalWrite(YELLOW_LED, LED_ON);
digitalWrite(GREEN_LED, LED_ON);
break;
default:
/* Keep all LEDs off */
break;
}
}
/* Main initialization */
static void tfInit(DeckInfo *info)
{
pinMode(RED_LED, OUTPUT);
pinMode(YELLOW_LED, OUTPUT);
pinMode(GREEN_LED, OUTPUT);
digitalWrite(RED_LED, LED_OFF);
digitalWrite(YELLOW_LED, LED_OFF);
digitalWrite(GREEN_LED, LED_OFF);
timer = xTimerCreate( "tfTimer", M2T(10),
pdTRUE, NULL, tfTimer );
xTimerStart(timer, 100);
}
PARAM_GROUP_START(tf)
PARAM_ADD(PARAM_UINT32, state, &tf)
PARAM_GROUP_STOP(tf)
static const DeckDriver tf_deck = {
.vid = 0,
.pid = 0,
.name = "bcTF",
.usedGpio = DECK_USING_PB4 | DECK_USING_PB5 | DECK_USING_PB8,
.init = tfInit,
};
DECK_DRIVER(tf_deck);
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