Add MKS UI (TFT_LITTLE_VGL_UI) (#18071)

Marlin/src/lcd/extui/lib/mks_ui/SPI_TFT.h

@@ -0,0 +1,55 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#include <stdint.h>
+
+#define SPI_TFT_CS_H  OUT_WRITE(SPI_TFT_CS_PIN, HIGH)
+#define SPI_TFT_CS_L  OUT_WRITE(SPI_TFT_CS_PIN, LOW)
+
+#define SPI_TFT_DC_H  OUT_WRITE(SPI_TFT_DC_PIN, HIGH)
+#define SPI_TFT_DC_L  OUT_WRITE(SPI_TFT_DC_PIN, LOW)
+
+#define SPI_TFT_RST_H OUT_WRITE(SPI_TFT_RST_PIN, HIGH)
+#define SPI_TFT_RST_L OUT_WRITE(SPI_TFT_RST_PIN, LOW)
+
+#define SPI_TFT_BLK_H OUT_WRITE(LCD_BACKLIGHT_PIN, HIGH)
+#define SPI_TFT_BLK_L OUT_WRITE(LCD_BACKLIGHT_PIN, LOW)
+
+class TFT {
+public:
+  void spi_init(uint8_t spiRate);
+  uint8_t spi_Rec();
+  uint8_t spi_read_write_byte(uint8_t data);
+  void spi_Read(uint8_t* buf, uint16_t nbyte);
+  void spi_Send(uint8_t b);
+  void spi_SendBlock(uint8_t token, const uint8_t* buf);
+  void LCD_WR_REG(uint8_t cmd);
+  void LCD_WR_DATA(uint8_t data);
+  void SetCursor(uint16_t x, uint16_t y);
+  void SetWindows(uint16_t x, uint16_t y, uint16_t with, uint16_t height);
+  void LCD_init();
+  void LCD_clear(uint16_t color);
+  void LCD_WriteRAM_Prepare();
+};
+
+extern TFT SPI_TFT;