Initial commit

src/ledHandler.c

@@ -0,0 +1,59 @@
+// Author: Dirk Jahnke
+// January 24, 2018
+//
+// Manage on board LED of SONOFF device
+//
+#include <stdio.h>
+#include <time.h>
+
+#include "mgos.h"
+#include "mgos_gpio.h"
+#include "mgos_sys_config.h"
+#include "mgos_timers.h"
+
+#include "ledHandler.h"
+
+static int ON_BOARD_LED = 13; /* sonoff basic LED pin */
+
+static LEDStatus currentStatus = LED_OFF;
+static int numTicksLedHasThisState = 0;
+
+void set_led_status(LEDStatus newStatus) {
+    numTicksLedHasThisState = 0;
+    currentStatus = newStatus;
+    LOG(LL_DEBUG, ("set_led_status to %d", newStatus));
+}
+
+static uint8_t led_timer_ticks = 0;  /* for led blinker use */
+
+static void blink_on_board_led_cb(void *arg) {
+    switch (currentStatus) {
+        case LED_OFF:
+            mgos_gpio_write(ON_BOARD_LED, 1);  // off
+            break;
+        case LED_ON:
+            mgos_gpio_write(ON_BOARD_LED, 0);  // on
+            break;
+        case LED_BLINK_SLOW:
+            ++numTicksLedHasThisState = 0;
+            if (numTicksLedHasThisState >= 4) {
+                numTicksLedHasThisState = 0;
+                mgos_gpio_toggle(ON_BOARD_LED);
+            }
+            break;
+        case LED_BLINK_FAST:
+            // toggle LED each tick
+            mgos_gpio_toggle(ON_BOARD_LED);
+            break;
+        default:
+            LOG(LL_ERROR, ("Invalid current LED status: %d -- ignored", currentStatus));
+            break;
+    }
+    (void) arg;
+}
+
+void init_led_handler() {
+    mgos_gpio_set_mode(ON_BOARD_LED, MGOS_GPIO_MODE_OUTPUT);
+    mgos_set_timer(250, MGOS_TIMER_REPEAT, blink_on_board_led_cb, NULL);
+    LOG(LL_DEBUG, ("LED handler initialized"));
+}