add camera driver and examples for edu-riscv64

APP_Framework/Applications/app_test/test_touch.c

@@ -0,0 +1,30 @@
+#include <stdio.h>
+#include <string.h>
+#include <transform.h>
+
+#define NULL_PARAMETER 0
+
+void TestTouch(void)
+{
+    int touch_fd = PrivOpen(TOUCH_DEV_DRIVER, O_RDWR);
+    if (touch_fd < 0)
+    {
+        printf("open touch fd error:%d\n", touch_fd);
+        return;
+    }
+
+    // draw text
+    struct TouchDataStandard touch_pixel;
+    memset(&touch_pixel,0,sizeof(touch_pixel));
+
+    while(1){
+        if(0 > PrivRead(touch_fd, &touch_pixel, NULL_PARAMETER)){
+            printf("read touch error\n");
+            return;            
+        }
+        printf("touch pixel position x:%d,y:%d\n",touch_pixel.x,touch_pixel.y);
+    }
+    PrivClose(touch_fd);
+}
+
+PRIV_SHELL_CMD_FUNCTION(TestTouch, a touch test sample, PRIV_SHELL_CMD_MAIN_ATTR);