From b5662a6e820845dad42147e0be18718a10f47581 Mon Sep 17 00:00:00 2001
From: uvok
Date: Sat, 19 Jul 2025 10:23:53 +0200
Subject: gpio: Change queue type, use digitalPinToInterrupt macro, logging

---
 src/gpio.cpp | 31 +++++++++++++++++++------------
 1 file changed, 19 insertions(+), 12 deletions(-)

(limited to 'src/gpio.cpp')

diff --git a/src/gpio.cpp b/src/gpio.cpp
index e76368a..a7927a8 100644
--- a/src/gpio.cpp
+++ b/src/gpio.cpp
@@ -1,6 +1,7 @@
 #include "badge/gpio.h"
 
 #include "badge/config.h"
+#include "badge/log.h"
 
 #include <Arduino.h>
 
@@ -17,10 +18,17 @@
 
 static void gpio_loop(void *);
 
-typedef uint32_t pin_notification_t;
+typedef struct
+{
+    uint32_t timestamp;
+    uint32_t pin : 8;
+    uint32_t state : 1;
+} pin_notification_t;
+
+_Static_assert(sizeof(uint32_t) >= sizeof(unsigned long), "return type of millis");
 
 #define GPIO_STACK 2048
-#define GPIO_QUEUE_LEN 4
+#define GPIO_QUEUE_LEN 32
 static unsigned long pressedTime = 0;
 static unsigned long releasedTime = 0;
 
@@ -58,7 +66,7 @@ void de::uvok::badge::gpio_init(void)
     {
         pinMode(p, GPIO_MODE_INPUT);
         // simply use pin number as arg
-        attachInterruptArg(p, gpio_pin_irq, (void *)(ptrdiff_t)p, CHANGE);
+        attachInterruptArg(digitalPinToInterrupt(p), gpio_pin_irq, (void *)(ptrdiff_t)p, CHANGE);
         inputs[p].last_level = digitalRead(p);
     }
 #endif
@@ -96,10 +104,9 @@ static void gpio_loop(void *ctx)
         pin_notification_t received;
         if (xQueueReceive(gpio_task_stuff.queue_handle, &received, portMAX_DELAY) == pdTRUE)
         {
-            const int level = (received & 0x100) ? HIGH : LOW;
-            const bool pressed = !level;
-            const int pin = received & 0xff;
-            Serial.printf("Pin %d was %s\n", pin, pressed ? "pressed" : "released");
+            const bool pressed = !received.state;
+            const uint8_t pin = received.pin;
+            LOG_F("(%u) Pin %u was %s\n", received.timestamp, pin, pressed ? "pressed" : "released");
         }
     }
 }
@@ -109,14 +116,14 @@ static ARDUINO_ISR_ATTR void gpio_pin_irq(void *arg)
     uint8_t pin_no = (uint8_t)(ptrdiff_t)arg;
     uint32_t now = millis();
     // Elecrow inputs - the selector - are very dirty...
-    const bool is_dirty = now - inputs[pin_no].last_change < 100;
-    inputs[pin_no].last_change = now;
-    if (is_dirty)
-        return;
+    // const bool is_dirty = now - inputs[pin_no].last_change < 50;
+    // inputs[pin_no].last_change = now;
+    // if (is_dirty)
+    //     return;
 
     int pinLevel = digitalRead(pin_no);
 
-    pin_notification_t send = (pinLevel << 8) | (pin_no);
+    pin_notification_t send = {.timestamp = now, .pin = pin_no, .state = (pinLevel == HIGH)};
     BaseType_t wakeup = false;
     xQueueSendFromISR(gpio_task_stuff.queue_handle, &send, &wakeup);
     if (wakeup)
-- 
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