From b3eacec4fc600dbb4b674dd13e9941ca53e63c6f Mon Sep 17 00:00:00 2001
From: ainyan03 <205502311+ainyan03@users.noreply.github.com>
Date: Thu, 10 Sep 2026 09:31:42 +0000
Subject: [PATCH] Add Panel_GC9B72 (360x360 round SPI TFT)

Shares the GC9xxx base with GC9A01; NOP closing is disabled for the same
reason as GC9A01.
---
 src/lgfx/v1/panel/Panel_GC9A01.hpp | 96 ++++++++++++++++++++++++++++++
 1 file changed, 96 insertions(+)

diff --git a/src/lgfx/v1/panel/Panel_GC9A01.hpp b/src/lgfx/v1/panel/Panel_GC9A01.hpp
index da662a20..eb8de4f6 100644
--- a/src/lgfx/v1/panel/Panel_GC9A01.hpp
+++ b/src/lgfx/v1/panel/Panel_GC9A01.hpp
@@ -150,6 +150,102 @@ namespace lgfx
     }
   };
 
+//----------------------------------------------------------------------------
+
+  struct Panel_GC9B72  : public Panel_GC9xxx
+  {
+    Panel_GC9B72(void)
+    {
+      _cfg.panel_width  = _cfg.memory_width  = 360;
+      _cfg.panel_height = _cfg.memory_height = 360;
+
+      _cfg.dummy_read_pixel = 16;
+
+      // GC9A01 malfunctions when sending NOP.
+      // Therefore, the function to send a NOP at the end of communication should be disabled.
+      _nop_closing = false;
+    }
+
+  protected:
+
+    // Source : https://github.com/xboot/xstar/blob/bd51ce0ce0e6350fdb76ccdaed3627d3b8ad84e8/xstar/driver/framebuffer/fb-gc9b72.c
+    const uint8_t* getInitCommands(uint8_t listno) const override
+    {
+      static constexpr uint8_t list0[] = {
+        0xFE, 0,
+        0xEF, 0,
+        0x80, 1, 0x19,
+        0x82, 1, 0x09,
+        0x83, 1, 0x03,
+        0x88, 1, 0x00,
+        0x89, 1, 0x38,
+        0x8A, 1, 0x40,
+        0x8B, 1, 0x0A,
+        0x8C, 1, 0x00,
+        0x81, 1, 0xFF,
+        0x84, 1, 0xFF,
+        0x85, 1, 0xFF,
+        0x86, 1, 0xFF,
+        0x87, 1, 0xFF,
+        0x8E, 1, 0xFF,
+        0x8F, 1, 0xFF,
+        0x98, 1, 0x3E,
+        0x99, 1, 0x3E,
+        0x7D, 1, 0x72,
+        0x70, 10, 0x02, 0x03, 0x03, 0x06, 0x03, 0x03, 0x09, 0x07, 0x09, 0x03,
+        0x90, 4, 0x06, 0x06, 0x01, 0x01,
+        0x93, 3, 0x02, 0xFF, 0x00,
+        0xCB, 1, 0x02,
+        0xFB, 2, 0x00, 0x00,
+        0xF6, 1, 0xC0,
+        0x6C, 7, 0x00, 0x00, 0x22, 0x00, 0xCC, 0x04, 0x58,
+        0xAA, 2, 0x0B, 0x00,
+        0xEC, 1, 0x07,
+        0xF9, 1, 0x40,
+        0xEB, 2, 0x01, 0x67,
+        0x74, 6, 0x01, 0x60, 0x00, 0x00, 0x00, 0x00,
+        0xB5, 3, 0x14, 0x14, 0x14,
+        0x6E, 32,
+          0x0B, 0x0B, 0x09, 0x09, 0x13, 0x13, 0x11, 0x11,
+          0x16, 0x15, 0x01, 0x04, 0x00, 0x0D, 0x1D, 0x00,
+          0x00, 0x1D, 0x0D, 0x00, 0x04, 0x08, 0x15, 0x16,
+          0x12, 0x12, 0x14, 0x14, 0x0A, 0x0A, 0x0C, 0x0C,
+        0x60, 4, 0x38, 0x1C, 0x13, 0x56,
+        0x61, 4, 0xF8, 0x0A, 0x13, 0x56,
+        0x62, 4, 0xF8, 0x0B, 0x13, 0x56,
+        0x63, 4, 0x38, 0x1C, 0x13, 0x56,
+        0x64, 6, 0x38, 0x20, 0x72, 0xF8, 0x13, 0x56,
+        0x65, 6, 0x78, 0x1A, 0x70, 0x0B, 0x56, 0x13,
+        0x66, 6, 0x38, 0x24, 0x72, 0xFC, 0x13, 0x56,
+        0x68, 7, 0xB3, 0x08, 0x0E, 0x08, 0x0E, 0x0A, 0x0A,
+        0x69, 7, 0xB3, 0x08, 0x0E, 0x08, 0x0E, 0x0A, 0x0A,
+        0x6A, 2, 0x00, 0x00,
+        0x3A, 1, 0x05, // COLMOD: 16 bits / pixel (RGB565)
+        0x36, 1, 0x00, // MADCTL
+        0x7C, 2, 0xB6, 0x29,
+        0xAC, 1, 0x40,
+        0xC3, 1, 0x1A,
+        0xC4, 1, 0x24,
+        0xC9, 1, 0x2F,
+        0xF0, 6, 0x11, 0x17, 0x08, 0x06, 0x05, 0x38,
+        0xF1, 6, 0x4D, 0x72, 0x72, 0x2D, 0x34, 0x8F,
+        0xF2, 6, 0x11, 0x17, 0x08, 0x06, 0x05, 0x38,
+        0xF3, 6, 0x4D, 0x72, 0x72, 0x2D, 0x34, 0x8F,
+        0xB4, 1, 0x0A,
+        0x35, 1, 0x00,
+        0xFE, 0,
+        0xEE, 0,
+        0x11, 0+CMD_INIT_DELAY, 120, // sleep out
+        0x29, 0, // display on
+        0xFF,0xFF, // end
+      };
+      switch (listno) {
+      case 0: return list0;
+      default: return nullptr;
+      }
+    }
+  };
+
 //----------------------------------------------------------------------------
 
   struct Panel_GC9107  : public Panel_GC9xxx