+ Fixup: Add gap configuration for ST7796, update its README.md

Boards/LilygoTLoraPager/Source/hal/TpagerDisplay.cpp

@@ -19,7 +19,9 @@ std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay() {
         true, //swapXY
         true, //mirrorX
         true, //mirrorY
-        true //invertColor
+        true, //invertColor
+        0, //gapX
+        49 //gapY
     );
 
     configuration->backlightDutyFunction = driver::pwmbacklight::setBacklightDuty;

Drivers/ST7796/README.md

@@ -1,3 +1,3 @@
-# ST7789
+# ST7796
 
-A basic ESP32 LVGL driver for ST7789 displays.
+A basic ESP32 LVGL driver for ST7796 displays.

Drivers/ST7796/Source/St7796Display.cpp

@@ -123,7 +123,7 @@ bool St7796Display::start() {
         return false;
     }
 
-    if (esp_lcd_panel_set_gap(panelHandle, 0, 49) != ESP_OK) {
+    if (esp_lcd_panel_set_gap(panelHandle, configuration->gapX, configuration->gapY) != ESP_OK) {
         TT_LOG_E(TAG, "Failed to set panel gap");
         return false;
     }

Drivers/ST7796/Source/St7796Display.h

@@ -28,6 +28,8 @@ public:
             bool mirrorX = false,
             bool mirrorY = false,
             bool invertColor = false,
+            unsigned int gapX = 0,
+            unsigned int gapY = 0,
             uint32_t bufferSize = 0 // Size in pixel count. 0 means default, which is 1/10 of the screen size
         ) : spiBusHandle(spi_bus_handle),
             csPin(csPin),
@@ -38,6 +40,8 @@ public:
             mirrorX(mirrorX),
             mirrorY(mirrorY),
             invertColor(invertColor),
+            gapX(gapX),
+            gapY(gapY),
             bufferSize(bufferSize),
             touch(std::move(touch)) {}
 
@@ -53,6 +57,8 @@ public:
         bool mirrorX = false;
         bool mirrorY = false;
         bool invertColor = false;
+        unsigned int gapX = 0;
+        unsigned int gapY = 0;
         uint32_t bufferSize = 0; // Size in pixel count. 0 means default, which is 1/10 of the screen size
         std::shared_ptr<tt::hal::touch::TouchDevice> touch;
         std::function<void(uint8_t)> _Nullable backlightDutyFunction = nullptr;