display line6 code sanitized

include/globals.h

@@ -42,7 +42,8 @@
 #define SCREEN_MODE (0x80)
 
 // I2C bus access control
-#define I2C_MUTEX_LOCK() (xSemaphoreTake(I2Caccess, pdMS_TO_TICKS(10)) == pdTRUE)
+#define I2C_MUTEX_LOCK()                                                       \
+  (xSemaphoreTake(I2Caccess, pdMS_TO_TICKS(10)) == pdTRUE)
 #define I2C_MUTEX_UNLOCK() (xSemaphoreGive(I2Caccess))
 
 enum sendprio_t { prio_low, prio_normal, prio_high };
@@ -104,7 +105,7 @@ extern std::array<uint64_t, 0xff>::iterator it;
 extern std::array<uint64_t, 0xff> beacons;
 
 extern configData_t cfg;         // current device configuration
-extern char display_line6[], display_line7[]; // screen buffers
+extern char lmic_event_msg[];    // display buffer
 extern uint8_t volatile channel; // wifi channel rotation counter
 extern uint16_t volatile macs_total, macs_wifi, macs_ble,
     batt_voltage;                   // display values

src/display.cpp

@@ -13,12 +13,13 @@ Display-Mask (128 x 64 pixel):
 3|BLTH:abcde SF:ab
 4|WIFI:abcde ch:ab
 5|RLIM:abcd abcdKB
-6|xxxxxxxxxxxxxxxx
 6|20:27:00* 27.Feb
 7|yyyyyyyyyyyyyyab
 
-line 6: x = Text for LORA status OR time/date
-line 7: y = Text for LMIC status; ab = payload queue
+line 6: * = time source indicator: L|G|R|?,
+            inverse = clock controller is active,
+            pulsed = pps input signal is active
+line 7: y = LMIC event message; ab = payload queue length
 
 */
 
@@ -239,17 +240,13 @@ void draw_page(time_t t, uint8_t page) {
 #endif // HAS_DCF77 || HAS_IF482
     if (timeSource != _unsynced)
       u8x8.printf(" %2d.%3s", day(t), printmonth[month(t)]);
-#else // update LoRa status display
-#if (HAS_LORA)
-    u8x8.printf("%-16s", display_line6);
-#endif
 
 #endif // TIME_SYNC_INTERVAL
 
 #if (HAS_LORA)
     // line 7: update LMiC event display
     u8x8.setCursor(0, 7);
-    u8x8.printf("%-14s", display_line7);
+    u8x8.printf("%-14s", lmic_event_msg);
 
     // update LoRa send queue display
     msgWaiting = uxQueueMessagesWaiting(LoraSendQueue);
@@ -259,7 +256,6 @@ void draw_page(time_t t, uint8_t page) {
       u8x8.printf("%-2s", msgWaiting == SEND_QUEUE_SIZE ? "<>" : buff);
     } else
       u8x8.printf("  ");
-
 #endif // HAS_LORA
 
     break; // page0

src/lorawan.cpp

@@ -231,7 +231,6 @@ void onEvent(ev_t ev) {
 
   case EV_JOINED:
     strcpy_P(buff, PSTR("JOINED"));
-    sprintf(display_line6, " "); // clear previous lmic status
     // set data rate adaptation according to saved setting
     LMIC_setAdrMode(cfg.adrmode);
     // set data rate and transmit power to defaults only if we have no ADR
@@ -258,16 +257,7 @@ void onEvent(ev_t ev) {
     break;
 
   case EV_TXCOMPLETE:
-
-#if (TIME_SYNC_LORASERVER)
-    // if last packet sent was a timesync request, store TX timestamp
-    if (LMIC.pendTxPort == TIMEPORT)
-      store_time_sync_req(osticks2ms(LMIC.txend)); // milliseconds
-#endif
-
-    strcpy_P(buff, (LMIC.txrxFlags & TXRX_ACK) ? PSTR("RECEIVED ACK")
-                                               : PSTR("TX COMPLETE"));
-    sprintf(display_line6, " "); // clear previous lmic status
+    strcpy_P(buff, PSTR("TX COMPLETE"));
     break;
 
   case EV_LOST_TSYNC:
@@ -321,7 +311,7 @@ void onEvent(ev_t ev) {
   // Log & Display if asked
   if (*buff) {
     ESP_LOGI(TAG, "%s", buff);
-    sprintf(display_line7, buff);
+    sprintf(lmic_event_msg, buff);
   }
 }
 
@@ -585,7 +575,12 @@ void myRxCallback(void *pUserData, uint8_t port, const uint8_t *pMsg,
 
 // transmit complete message handler
 void myTxCallback(void *pUserData, int fSuccess) {
-  /* currently no code here */
+
+#if (TIME_SYNC_LORASERVER)
+  // if last packet sent was a timesync request, store TX timestamp
+  if (LMIC.pendTxPort == TIMEPORT)
+    store_time_sync_req(osticks2ms(LMIC.txend)); // milliseconds
+#endif
 }
 
 // decode LORAWAN MAC message

src/main.cpp

@@ -77,7 +77,7 @@ triggers pps 1 sec impulse
 #include "main.h"
 
 configData_t cfg;             // struct holds current device configuration
-char display_line6[16], display_line7[16]; // display buffers
+char lmic_event_msg[16];      // display buffer for LMIC event message
 uint8_t volatile channel = 0; // channel rotation counter
 uint16_t volatile macs_total = 0, macs_wifi = 0, macs_ble = 0,
                   batt_voltage = 0; // globals for display

src/rcommand.cpp

@@ -19,32 +19,25 @@ void do_reset() {
 void set_reset(uint8_t val[]) {
   switch (val[0]) {
   case 0: // restart device
-    sprintf(display_line6, "Reset pending");
     do_reset();
     break;
   case 1: // reset MAC counter
     ESP_LOGI(TAG, "Remote command: reset MAC counter");
     reset_counters(); // clear macs
     get_salt();       // get new salt
-    sprintf(display_line6, "Reset counter");
     break;
   case 2: // reset device to factory settings
     ESP_LOGI(TAG, "Remote command: reset device to factory settings");
-    sprintf(display_line6, "Factory reset");
     eraseConfig();
     break;
   case 3: // reset send queues
     ESP_LOGI(TAG, "Remote command: flush send queue");
-    sprintf(display_line6, "Queue reset");
     flushQueues();
     break;
   case 9: // reset and ask for software update via Wifi OTA
     ESP_LOGI(TAG, "Remote command: software update via Wifi");
 #if (USE_OTA)
-    sprintf(display_line6, "Software update");
     cfg.runmode = 1;
-#else
-    sprintf(display_line6, "Software update not implemented");
 #endif // USE_OTA
     break;