在树莓派4上更新了最新的wiringpi库，这样按钮正常了

src/button.c

@@ -22,48 +22,84 @@
 
 static pthread_t s_button_threadID;
 
- void  isr_function(void)
- {
-    DUER_LOGI("isr_function %d\n", digitalRead(BUTTON_GPIO));
+void  isr_function(void)
+{
+    //DUER_LOGI("isr_function %d\n",digitalRead(BUTTON_GPIO));
     return ;
 }
 
+int  duer_app_is_test_mode(void);
+
 extern int  duer_recorder_test_start(int channel);
 
 static void button_polling_thread()
 {
-	 while(1)
-	 {
-            DUER_LOGI("aaaa button_polling_thread %d\n", digitalRead(BUTTON_GPIO));
-			 waitForInterrupt(BUTTON_GPIO, -1);
-			 delay(100);
-			 if(digitalRead(BUTTON_GPIO)==0)
-			 {
-                 duer_dcs_dialog_cancel();
-                 duer_media_tone_play("./resources/16.wav");
-                 event_record_start();
-                 DUER_LOGI("button_polling_thread %d\n", digitalRead(BUTTON_GPIO));
-			 }
-	 }
+    int old_state=0;
+    int now_state=0;
+    uint32_t  btn_press_time = duer_timestamp();
+    uint32_t  btn_release_time = duer_timestamp();
+    int  channel_id=1;
+
+    while(1)
+    {
+        waitForInterrupt(BUTTON_GPIO,100);
+        if((now_state=digitalRead(BUTTON_GPIO))!=old_state)
+        {
+            DUER_LOGI("%d %d\n",now_state,old_state);
+            if(now_state==1) //release
+            {
+                btn_release_time  =  duer_timestamp(NULL);
+                if(btn_release_time>btn_press_time+100)
+                {
+                    if(duer_app_is_test_mode())
+                    {
+                        duer_recorder_test_start(channel_id);
+                        duer_dcs_dialog_cancel();
+                        duer_media_tone_play("./resources/16.wav");
+                        event_record_start();
+                        if(channel_id==1)
+                        {
+                            channel_id =2;
+                        }
+                        else
+                        {
+                            channel_id =1;
+                        }
+                    }
+                    else
+                    {
+                        duer_dcs_dialog_cancel();
+                        duer_media_tone_play("./resources/16.wav");
+                        event_record_start();
+                    }
+                }
+            }
+            else  //press
+            {
+                btn_press_time = duer_timestamp();
+            }
+
+            old_state = now_state;
+
+        }
+    }
 }
 
 int button_init(void)
 {
-		if(wiringPiSetup()!=0)
-		{
-		    DUER_LOGE("wiringPiSetup fail\n");
-		    return -1;
-		}
-		pinMode(BUTTON_GPIO, INPUT);
-		pullUpDnControl(BUTTON_GPIO, PUD_UP);
-
-		if(pthread_create(&s_button_threadID, NULL, (void *)button_polling_thread, NULL)!=0)
-		{
-		    DUER_LOGE("create button thread fail!\n");
-		    return -1;
-		}
-
-		wiringPiISR(BUTTON_GPIO,INT_EDGE_FALLING,isr_function);
-		return 0;
+    if(wiringPiSetup()!=0)
+    {
+        DUER_LOGE("wiringPiSetup fail\n");
+        return -1;
+    }
+
+    if(pthread_create(&s_button_threadID, NULL, (void *)button_polling_thread, NULL)!=0)
+    {
+        DUER_LOGE("create button thread fail!\n");
+        return -1;
+    }
+
+    wiringPiISR(BUTTON_GPIO,INT_EDGE_BOTH,isr_function);
+    return 0;
 }