Initial commit: Loongson FPGA SoC project for 2026 CIC-IEC

sdk/software/bsp/drivers/dvi.c

@@ -0,0 +1,27 @@
+#include "dvi.h"
+
+// 设置坐标和颜色的绘图函数
+void DVI_Draw_Rect(uint32_t x, uint32_t y, uint32_t l, uint32_t w)
+{   
+    // 创建坐标值，x 和 y 分别占用 12 位; width 和 height 用于定义范围
+    uint32_t coordinates = ((x & 0xFFFF)<<16) | (y & 0xFFFF);
+
+    uint32_t size = ((l & 0xFFFF)<<16) | (w & 0xFFFF);
+
+    // 写入坐标和颜色寄存器
+    RegWrite(DVI_RECT_DIR, coordinates);
+    RegWrite(DVI_RECT_L_W, size);
+}
+
+// 在指定位置绘制一个点的函数
+void DVI_Draw_SQU(uint32_t x, uint32_t y, uint32_t r)
+{
+    // 创建坐标值，x 和 y 分别占用 12 位; width 和 height 用于定义范围
+    uint32_t coordinates = ((x & 0xFFFF)<<16) | (y & 0xFFFF);
+
+    uint32_t size = ((r & 0xFFFF)<<16) | (r & 0xFFFF);
+
+    // 写入坐标和颜色寄存器
+    RegWrite(DVI_SQU_DIR, coordinates);
+    RegWrite(DVI_SQU_R, size);
+}