From 48e87f6e5d1ea4094eff1f641214f216d681291e Mon Sep 17 00:00:00 2001
From: lovyan03 <42724151+lovyan03@users.noreply.github.com>
Date: Thu, 25 Jul 2024 15:52:31 +0900
Subject: [PATCH] add support SSD1963 PWM backlight control. ( #586 )

---
 src/lgfx/v1/panel/Panel_SSD1963.cpp | 9 +++++++++
 src/lgfx/v1/panel/Panel_SSD1963.hpp | 2 ++
 2 files changed, 11 insertions(+)

diff --git a/src/lgfx/v1/panel/Panel_SSD1963.cpp b/src/lgfx/v1/panel/Panel_SSD1963.cpp
index 835ff3f5..c24ca5fe 100644
--- a/src/lgfx/v1/panel/Panel_SSD1963.cpp
+++ b/src/lgfx/v1/panel/Panel_SSD1963.cpp
@@ -142,6 +142,15 @@ namespace lgfx
     return true;
   }
 
+  void Panel_SSD1963::setBrightness(uint8_t brightness)
+  {
+    if (_light) { Panel_LCD::setBrightness(brightness); }
+    else {
+      uint8_t cmd[] = { 0xBE, 6, 0x05, brightness, 0x01, 0xFF, 0x00, 0x00, 0xFF, 0xFF };
+      command_list(cmd);
+    }
+  }
+
   color_depth_t Panel_SSD1963::setColorDepth(color_depth_t depth)
   {
     uint8_t mode = 0x00;
diff --git a/src/lgfx/v1/panel/Panel_SSD1963.hpp b/src/lgfx/v1/panel/Panel_SSD1963.hpp
index 2d426f15..80b4a047 100644
--- a/src/lgfx/v1/panel/Panel_SSD1963.hpp
+++ b/src/lgfx/v1/panel/Panel_SSD1963.hpp
@@ -66,6 +66,8 @@ namespace lgfx
       _read_depth  = rgb565_2Byte;
     }
 
+    void setBrightness(uint8_t brightness) override;
+
     void setHSync(uint_fast16_t front, uint_fast16_t sync, uint_fast16_t back, uint_fast16_t move = 0, uint_fast16_t lpspp = 0);
     void setVSync(uint_fast16_t front, uint_fast16_t sync, uint_fast16_t back, uint_fast16_t move = 0);