Clean termination of all the threads on device shutdown

openrtx/include/core/state.h

@@ -59,8 +59,8 @@ typedef struct
     bool       bank_enabled;
     uint16_t   bank;
     uint8_t    rtxStatus;
-    bool       rtxShutdown;
 
+    bool       shutdown;
     bool       emergency;
     settings_t settings;
     gps_t      gps_data;

openrtx/src/core/state.c

@@ -84,7 +84,7 @@ void state_init()
     state.channel_index = 1;    // Set default channel index (it is 1-based)
     state.bank_enabled  = false;
     state.rtxStatus     = RTX_OFF;
-    state.rtxShutdown   = false;
+    state.shutdown      = false;
     state.emergency     = false;
 
     // Force brightness field to be in range 0 - 100

openrtx/src/core/threads.c

@@ -144,7 +144,7 @@ void *kbd_task(void *arg)
     // Initialize keyboard driver
     kbd_init();
 
-    while(1)
+    while(state.shutdown == false)
     {
         kbd_msg_t msg;
 
@@ -165,6 +165,8 @@ void *kbd_task(void *arg)
         // Read keyboard state at 40Hz
         sleepFor(0u, 25u);
     }
+
+    return NULL;
 }
 
 /**
@@ -174,7 +176,7 @@ void *dev_task(void *arg)
 {
     (void) arg;
 
-    while(1)
+    while(state.shutdown == false)
     {
         // Lock mutex and update internal state
         pthread_mutex_lock(&state_mutex);
@@ -190,6 +192,8 @@ void *dev_task(void *arg)
         // Execute state update thread every 1s
         sleepFor(1u, 0u);
     }
+
+    return NULL;
 }
 
 /**
@@ -201,20 +205,13 @@ void *rtx_task(void *arg)
 
     rtx_init(&rtx_mutex);
 
-    while(1)
+    while(state.shutdown == false)
     {
         rtx_taskFunc();
-
-        // TODO: implement a cleaner shutdown procedure
-        if(state.rtxShutdown == true)
-        {
-            radio_disableRtx();
-            platform_ledOff(RED);
-            platform_ledOff(GREEN);
-            break;
-        }
     }
 
+    rtx_terminate();
+
     return NULL;
 }
 
@@ -230,7 +227,7 @@ void *gps_task(void *arg)
 
     gps_init(9600);
 
-    while(1)
+    while(state.shutdown == false)
     {
         pthread_mutex_lock(&state_mutex);
         gps_taskFunc();
@@ -238,6 +235,10 @@ void *gps_task(void *arg)
 
         sleepFor(0u, 100u);
     }
+
+    gps_terminate();
+
+    return NULL;
 }
 #endif
 

openrtx/src/rtx/OpMode_FM.cpp

@@ -78,6 +78,8 @@ void OpMode_FM::enable()
 void OpMode_FM::disable()
 {
     // Clean shutdown.
+    platform_ledOff(GREEN);
+    platform_ledOff(RED);
     audio_disableAmp();
     audio_disableMic();
     radio_disableRtx();

openrtx/src/rtx/OpMode_M17.cpp

@@ -54,6 +54,8 @@ void OpMode_M17::disable()
 {
     startRx = false;
     startTx = false;
+    platform_ledOff(GREEN);
+    platform_ledOff(RED);
     codec_terminate();
     audio_disableAmp();
     audio_disableMic();

openrtx/src/ui/ui.c

@@ -935,6 +935,7 @@ void ui_updateFSM(event_t event, bool *sync_rtx)
     // User wants to power off the radio, so shutdown.
     if(!platform_pwrButtonStatus())
     {
+        state.shutdown = true;
         state_terminate();
         platform_terminate();
         return;

openrtx/src/ui/ui_menu.c

@@ -467,8 +467,8 @@ void _ui_drawMenuBackup(ui_state_t* ui_state)
     gfx_print(line, FONT_SIZE_8PT, TEXT_ALIGN_CENTER,
               color_white, "press PTT to start.");
 
-    // Shutdown RF stage
-    state.rtxShutdown = true;
+    // Shutdown all the other parts
+    state.shutdown = true;
 
     if(platform_getPttStatus() == 1)
     {
@@ -500,8 +500,8 @@ void _ui_drawMenuRestore(ui_state_t* ui_state)
     gfx_print(line, FONT_SIZE_8PT, TEXT_ALIGN_CENTER,
               color_white, "press PTT to start.");
 
-    // Shutdown RF stage
-    state.rtxShutdown = true;
+    // Shutdown all the other parts
+    state.shutdown = true;
 
     if(platform_getPttStatus() == 1)
     {