add:u8g2集成硬件i2c初始化，不必单独初始化I2C

luat/packages/u8g2/luat_lib_u8g2.c

@@ -1,941 +1,950 @@
-/*
-@module  u8g2
-@summary u8g2图形处理库
-@author  Dozingfiretruck
-@version 1.0
-@date    2021.01.25
-*/
-#include "luat_base.h"
-#include "luat_malloc.h"
-
-#include "luat_u8g2.h"
-#include "luat_gpio.h"
-#include "luat_timer.h"
-#include "luat_i2c.h"
-#include "luat_spi.h"
-
-#include "u8g2.h"
-
-#define LUAT_LOG_TAG "luat.u8g2"
-#include "luat_log.h"
-
-
-#define font_ncenB08_tr                     0
-#define font_wqy12_t_gb2312                 1
-#define font_unifont_t_symbols              2
-#define font_open_iconic_weather_6x_t       3
-
-static u8g2_t* u8g2;
-static int u8g2_lua_ref;
-static uint8_t i2c_id;
-static uint8_t i2c_addr = 0x3C;
-static uint8_t spi_id;
-static uint8_t OLED_SPI_PIN_RES;
-static uint8_t OLED_SPI_PIN_DC;
-static uint8_t OLED_SPI_PIN_CS;
-
-/*
-u8g2显示屏初始化
-@api u8g2.begin("ssd1306")
-@string 配置信息
-@return int 正常初始化1,已经初始化过2,内存不够3,初始化失败返回4
-@usage
--- 初始化i2c1的ssd1306
-u8g2.begin("ssd1306")
-*/
-static int l_u8g2_begin(lua_State *L) {
-    if (u8g2 != NULL) {
-        LLOGW("disp is aready inited");
-        lua_pushinteger(L, 2);
-        return 1;
-    }
-    u8g2 = (u8g2_t*)lua_newuserdata(L, sizeof(u8g2_t));
-    if (u8g2 == NULL) {
-        LLOGE("lua_newuserdata return NULL, out of memory ?!");
-        lua_pushinteger(L, 3);
-        return 1;
-    }
-    // TODO: 暂时只支持SSD1306 12864, I2C接口-> i2c1soft, 软件模拟
-    luat_u8g2_conf_t conf = {0};
-    conf.pinType = 2; // I2C 硬件(或者是个假硬件)
-    conf.ptr = u8g2;
-    if (lua_istable(L, 1)) {
-        // 参数解析
-        lua_pushliteral(L, "mode");
-        lua_gettable(L, 1);
-        if (lua_isstring(L, -1)) {
-            const char* mode = luaL_checkstring(L, -1);
-            LLOGD("mode = [%s]", mode);
-            if (strcmp("i2c_sw", mode) == 0) {
-                LLOGD("using i2c_sw");
-                conf.pinType = 1;
-            }
-            else if (strcmp("i2c_hw", mode) == 0) {
-                LLOGD("using i2c_hw");
-                conf.pinType = 2;
-            }
-            else if (strcmp("spi_sw_3pin", mode) == 0) {
-                LLOGD("using spi_sw_3pin");
-                conf.pinType = 3;
-            }
-            else if (strcmp("spi_sw_4pin", mode) == 0) {
-                LLOGD("using spi_sw_4pin");
-                conf.pinType = 4;
-            }
-            else if (strcmp("spi_hw_4pin", mode) == 0) {
-                LLOGD("using spi_hw_4pin");
-                conf.pinType = 5;
-            }
-        }
-        lua_pop(L, 1);
-
-        // 解析pin0 ~ pin7
-        lua_pushliteral(L, "pin0");
-        lua_gettable(L, 1);
-        if (lua_isinteger(L, -1)) {
-            conf.pin0 = luaL_checkinteger(L, -1);
-        }
-        lua_pop(L, 1);
-
-        lua_pushliteral(L, "pin1");
-        lua_gettable(L, 1);
-        if (lua_isinteger(L, -1)) {
-            conf.pin1 = luaL_checkinteger(L, -1);
-        }
-        lua_pop(L, 1);
-
-        lua_pushliteral(L, "pin2");
-        lua_gettable(L, 1);
-        if (lua_isinteger(L, -1)) {
-            conf.pin2 = luaL_checkinteger(L, -1);
-        }
-        lua_pop(L, 1);
-
-        lua_pushliteral(L, "pin3");
-        lua_gettable(L, 1);
-        if (lua_isinteger(L, -1)) {
-            conf.pin3 = luaL_checkinteger(L, -1);
-        }
-        lua_pop(L, 1);
-
-        lua_pushliteral(L, "i2c_id");
-        lua_gettable(L, 1);
-        if (lua_isinteger(L, -1)) {
-            i2c_id = luaL_checkinteger(L, -1);
-        }
-        lua_pop(L, 1);
-
-        lua_pushliteral(L, "i2c_addr");
-        lua_gettable(L, 1);
-        if (lua_isinteger(L, -1)) {
-            i2c_addr = luaL_checkinteger(L, -1);
-        }
-        lua_pop(L, 1);
-
-        lua_pushliteral(L, "spi_id");
-        lua_gettable(L, 1);
-        if (lua_isinteger(L, -1)) {
-            spi_id = luaL_checkinteger(L, -1);
-            LLOGD("spi_id=%d", spi_id);
-        }
-        lua_pop(L, 1);
-
-        lua_pushliteral(L, "OLED_SPI_PIN_RES");
-        lua_gettable(L, 1);
-        if (lua_isinteger(L, -1)) {
-            OLED_SPI_PIN_RES = luaL_checkinteger(L, -1);
-            LLOGD("OLED_SPI_PIN_RES=%d", OLED_SPI_PIN_RES);
-        }
-        lua_pop(L, 1);
-
-        lua_pushliteral(L, "OLED_SPI_PIN_DC");
-        lua_gettable(L, 1);
-        if (lua_isinteger(L, -1)) {
-            OLED_SPI_PIN_DC = luaL_checkinteger(L, -1);
-            LLOGD("OLED_SPI_PIN_DC=%d", OLED_SPI_PIN_DC);
-        }
-        lua_pop(L, 1);
-
-        lua_pushliteral(L, "OLED_SPI_PIN_CS");
-        lua_gettable(L, 1);
-        if (lua_isinteger(L, -1)) {
-            OLED_SPI_PIN_CS = luaL_checkinteger(L, -1);
-            LLOGD("OLED_SPI_PIN_CS=%d", OLED_SPI_PIN_CS);
-        }
-        lua_pop(L, 1);
-
-        // lua_pushliteral(L, "spi_id");
-        // lua_gettable(L, 1);
-        // if (lua_isinteger(L, -1)) {
-        //     spi_id = luaL_checkinteger(L, -1);
-        // }
-        // lua_pop(L, 1);
-
-        // pin4 ~ pin7暂时用不到,先不设置了
-    }
-    LLOGD("pinType=%d", conf.pinType);
-    if (luat_u8g2_setup(&conf)) {
-        u8g2 = NULL;
-        LLOGW("disp init fail");
-        lua_pushinteger(L, 4);
-        return 1; // 初始化失败
-    }
-
-    u8g2_lua_ref = luaL_ref(L, LUA_REGISTRYINDEX);
-
-    u8g2_SetFont(u8g2, u8g2_font_ncenB08_tr); // 设置默认字体
-
-    lua_pushinteger(L, 1);
-    return 1;
-}
-
-/*
-关闭显示屏
-@api u8g2.close()
-@usage
--- 关闭disp,再次使用disp相关API的话,需要重新初始化
-u8g2.close()
-*/
-static int l_u8g2_close(lua_State *L) {
-    if (u8g2_lua_ref != 0) {
-        lua_geti(L, LUA_REGISTRYINDEX, u8g2_lua_ref);
-        if (lua_isuserdata(L, -1)) {
-            luaL_unref(L, LUA_REGISTRYINDEX, u8g2_lua_ref);
-        }
-        u8g2_lua_ref = 0;
-    }
-    lua_gc(L, LUA_GCCOLLECT, 0);
-    u8g2 = NULL;
-    return 0;
-}
-
-/*
-清屏，清除内存帧缓冲区中的所有像素
-@api u8g2.ClearBuffer()
-@usage
--- 清屏
-u8g2.ClearBuffer()
-*/
-static int l_u8g2_ClearBuffer(lua_State *L) {
-    if (u8g2 == NULL) return 0;
-    u8g2_ClearBuffer(u8g2);
-    return 0;
-}
-
-/*
-将数据更新到屏幕，将存储器帧缓冲区的内容发送到显示器
-@api u8g2.SendBuffer()
-@usage
--- 把显示数据更新到屏幕
-u8g2.SendBuffer()
-*/
-static int l_u8g2_SendBuffer(lua_State *L) {
-    if (u8g2 == NULL) return 0;
-    u8g2_SendBuffer(u8g2);
-    return 0;
-}
-
-/*
-在显示屏上画一段文字，在显示屏上画一段文字,要调用u8g2.SendBuffer()才会更新到屏幕
-@api u8g2.DrawUTF8(str, x, y)
-@string 文件内容
-@int 横坐标
-@int 竖坐标
-@usage
-u8g2.DrawUTF8("wifi is ready", 10, 20)
-*/
-static int l_u8g2_DrawUTF8(lua_State *L) {
-    if (u8g2 == NULL) {
-        LLOGW("disp not init yet!!!");
-        return 0;
-    }
-    size_t len;
-    size_t x, y;
-    const char* str = luaL_checklstring(L, 1, &len);
-
-    x = luaL_checkinteger(L, 2);
-    y = luaL_checkinteger(L, 3);
-
-    u8g2_DrawUTF8(u8g2, x, y, str);
-    return 0;
-}
-
-/*
-设置字体模式
-@api u8g2.SetFontMode(mode)
-@int mode字体模式，启用（1）或禁用（0）透明模式
-@usage
-u8g2.SetFontMode(1)
-*/
-static int l_u8g2_SetFontMode(lua_State *L){
-    if (u8g2 == NULL) return 0;
-    int font_mode = luaL_checkinteger(L, 1);
-    if (font_mode < 0) {
-        lua_pushboolean(L, 0);
-    }
-    u8g2_SetFontMode(u8g2, font_mode);
-    lua_pushboolean(L, 1);
-    return 1;
-}
-
-/*
-设置字体
-@api u8g2.SetFont(font)
-@string font, "u8g2_font_ncenB08_tr"为纯英文8x8字节,"u8g2_font_wqy12_t_gb2312"为12x12全中文,"u8g2_font_unifont_t_symbols"为符号.
-@usage
--- 设置为中文字体,对之后的drawStr有效,使用中文字体需在luat_base.h开启#define USE_U8G2_WQY12_T_GB2312
-u8g2.setFont("u8g2_font_wqy12_t_gb2312")
-*/
-static int l_u8g2_SetFont(lua_State *L) {
-    if (u8g2 == NULL) {
-        LLOGI("disp not init yet!!!");
-        lua_pushboolean(L, 0);
-        return 1;
-    }
-    int font = luaL_checkinteger(L, 1);
-    switch (font)
-        {
-        case font_ncenB08_tr:
-            LLOGI("font_ncenB08_tr");
-            u8g2_SetFont(u8g2, u8g2_font_ncenB08_tr);
-            lua_pushboolean(L, 1);
-            break;
-#if defined USE_U8G2_WQY12_T_GB2312
-        case font_wqy12_t_gb2312:
-            LLOGI("font_wqy12_t_gb2312");
-            u8g2_SetFont(u8g2, u8g2_font_wqy12_t_gb2312);
-            lua_pushboolean(L, 1);
-            break;
-#endif
-#if defined USE_U8G2_UNIFONT_SYMBOLS
-        case font_unifont_t_symbols:
-            LLOGI("font_wqy12_t_gb2312");
-            u8g2_SetFont(u8g2, u8g2_font_unifont_t_symbols);
-            lua_pushboolean(L, 1);
-            break;
-#endif
-#if defined USE_U8G2_ICONIC_WEATHER_6X
-        case font_open_iconic_weather_6x_t:
-            LLOGI("font_wqy12_t_gb2312");
-            u8g2_SetFont(u8g2, u8g2_font_open_iconic_weather_6x_t);
-            lua_pushboolean(L, 1);
-            break;
-#endif
-        default:
-            lua_pushboolean(L, 0);
-            LLOGI("default");
-            break;
-        }
-    return 0;
-}
-
-/*
-获取显示屏高度
-@api u8g2.GetDisplayHeight()
-@return int 显示屏高度
-@usage
-u8g2.GetDisplayHeight()
-*/
-static int l_u8g2_GetDisplayHeight(lua_State *L){
-    if (u8g2 == NULL) return 0;
-    lua_pushinteger(L, u8g2_GetDisplayHeight(u8g2));
-    return 1;
-}
-
-/*
-获取显示屏宽度
-@api u8g2.GetDisplayWidth()
-@return int 显示屏宽度
-@usage
-u8g2.GetDisplayWidth()
-*/
-static int l_u8g2_GetDisplayWidth(lua_State *L){
-    if (u8g2 == NULL) return 0;
-    lua_pushinteger(L, u8g2_GetDisplayWidth(u8g2));
-    return 1;
-}
-
-/*
-在两点之间画一条线.
-@api u8g2.DrawLine(x0,y0,x1,y1)
-@int 第一个点的X位置.
-@int 第一个点的Y位置.
-@int 第二个点的X位置.
-@int 第二个点的Y位置.
-@usage
-u8g2.DrawLine(20, 5, 5, 32)
-*/
-static int l_u8g2_DrawLine(lua_State *L){
-    if (u8g2 == NULL) return 0;
-    u8g2_DrawLine(u8g2,luaL_checkinteger(L, 1),luaL_checkinteger(L, 2),luaL_checkinteger(L, 3),luaL_checkinteger(L, 4));
-    return 1;
-}
-
-/*
-在x,y位置画一个半径为rad的空心圆.
-@api u8g2.DrawCircle(x0,y0,rad,opt)
-@int 圆心位置
-@int 圆心位置
-@int 圆半径.
-@int 选择圆的部分或全部.
-右上： 0x01
-左上：  0x02
-左下： 0x04
-右下：  0x08
-完整圆： (0x01|0x02|0x04|0x08)
-@usage
-u8g2.DrawCircle(60,30,8,15)
-*/
-static int l_u8g2_DrawCircle(lua_State *L){
-    if (u8g2 == NULL) return 0;
-    u8g2_DrawCircle(u8g2,luaL_checkinteger(L, 1),luaL_checkinteger(L, 2),luaL_checkinteger(L, 3),luaL_checkinteger(L, 4));
-    return 1;
-}
-
-/*
-在x,y位置画一个半径为rad的实心圆.
-@api u8g2.DrawDisc(x0,y0,rad,opt)
-@int 圆心位置
-@int 圆心位置
-@int 圆半径.
-@int 选择圆的部分或全部.
-右上： 0x01
-左上：  0x02
-左下： 0x04
-右下：  0x08
-完整圆： (0x01|0x02|0x04|0x08)
-@usage
-u8g2.DrawDisc(60,30,8,15)
-*/
-static int l_u8g2_DrawDisc(lua_State *L){
-    if (u8g2 == NULL) return 0;
-    u8g2_DrawDisc(u8g2,luaL_checkinteger(L, 1),luaL_checkinteger(L, 2),luaL_checkinteger(L, 3),luaL_checkinteger(L, 4));
-    return 1;
-}
-
-/*
-在x,y位置画一个半径为rad的空心椭圆.
-@api u8g2.DrawEllipse(x0,y0,rx,ry,opt)
-@int 圆心位置
-@int 圆心位置
-@int 椭圆大小
-@int 椭圆大小
-@int 选择圆的部分或全部.
-右上： 0x01
-左上：  0x02
-左下： 0x04
-右下：  0x08
-完整圆： (0x01|0x02|0x04|0x08)
-@usage
-u8g2.DrawEllipse(60,30,8,15)
-*/
-static int l_u8g2_DrawEllipse(lua_State *L){
-    if (u8g2 == NULL) return 0;
-    u8g2_DrawEllipse(u8g2,luaL_checkinteger(L, 1),luaL_checkinteger(L, 2),luaL_checkinteger(L, 3),luaL_checkinteger(L, 4),luaL_checkinteger(L, 5));
-    return 1;
-}
-
-/*
-在x,y位置画一个半径为rad的实心椭圆.
-@api u8g2.DrawFilledEllipse(x0,y0,rx,ry,opt)
-@int 圆心位置
-@int 圆心位置
-@int 椭圆大小
-@int 椭圆大小
-@int 选择圆的部分或全部.
-右上： 0x01
-左上：  0x02
-左下： 0x04
-右下：  0x08
-完整圆： (0x01|0x02|0x04|0x08)
-@usage
-u8g2.DrawFilledEllipse(60,30,8,15)
-*/
-static int l_u8g2_DrawFilledEllipse(lua_State *L){
-    if (u8g2 == NULL) return 0;
-    u8g2_DrawFilledEllipse(u8g2,luaL_checkinteger(L, 1),luaL_checkinteger(L, 2),luaL_checkinteger(L, 3),luaL_checkinteger(L, 4),luaL_checkinteger(L, 5));
-    return 1;
-}
-
-/*
-从x / y位置（左上边缘）开始绘制一个框（填充的框）.
-@api u8g2.DrawBox(x,y,w,h)
-@int 左上边缘的X位置
-@int 左上边缘的Y位置
-@int 盒子的宽度
-@int 盒子的高度
-@usage
-u8g2.DrawBox(3,7,25,15)
-*/
-static int l_u8g2_DrawBox(lua_State *L){
-    if (u8g2 == NULL) return 0;
-    u8g2_DrawBox(u8g2,luaL_checkinteger(L, 1),luaL_checkinteger(L, 2),luaL_checkinteger(L, 3),luaL_checkinteger(L, 4));
-    return 1;
-}
-
-/*
-从x / y位置（左上边缘）开始绘制一个框（空框）.
-@api u8g2.DrawFrame(x,y,w,h)
-@int 左上边缘的X位置
-@int 左上边缘的Y位置
-@int 盒子的宽度
-@int 盒子的高度
-@usage
-u8g2.DrawFrame(3,7,25,15)
-*/
-static int l_u8g2_DrawFrame(lua_State *L){
-    if (u8g2 == NULL) return 0;
-    u8g2_DrawFrame(u8g2,luaL_checkinteger(L, 1),luaL_checkinteger(L, 2),luaL_checkinteger(L, 3),luaL_checkinteger(L, 4));
-    return 1;
-}
-
-/*
-绘制一个从x / y位置（左上边缘）开始具有圆形边缘的填充框/框架.
-@api u8g2.DrawRBox(x,y,w,h,r)
-@int 左上边缘的X位置
-@int 左上边缘的Y位置
-@int 盒子的宽度
-@int 盒子的高度
-@int 四个边缘的半径
-@usage
-u8g2.DrawRBox(3,7,25,15)
-*/
-static int l_u8g2_DrawRBox(lua_State *L){
-    if (u8g2 == NULL) return 0;
-    u8g2_DrawRBox(u8g2,luaL_checkinteger(L, 1),luaL_checkinteger(L, 2),luaL_checkinteger(L, 3),luaL_checkinteger(L, 4),luaL_checkinteger(L, 5));
-    return 1;
-}
-
-/*
-绘制一个从x / y位置（左上边缘）开始具有圆形边缘的空框/框架.
-@api u8g2.DrawRFrame(x,y,w,h,r)
-@int 左上边缘的X位置
-@int 左上边缘的Y位置
-@int 盒子的宽度
-@int 盒子的高度
-@int 四个边缘的半径
-@usage
-u8g2.DrawRFrame(3,7,25,15)
-*/
-static int l_u8g2_DrawRFrame(lua_State *L){
-    if (u8g2 == NULL) return 0;
-    u8g2_DrawRFrame(u8g2,luaL_checkinteger(L, 1),luaL_checkinteger(L, 2),luaL_checkinteger(L, 3),luaL_checkinteger(L, 4),luaL_checkinteger(L, 5));
-    return 1;
-}
-
-/*
-绘制一个图形字符。字符放置在指定的像素位置x和y.
-@api u8g2.DrawGlyph(x,y,encoding)
-@int 字符在显示屏上的位置
-@int 字符在显示屏上的位置
-@int 字符的Unicode值
-@usage
-u8g2.SetFont(u8g2_font_unifont_t_symbols)
-u8g2.DrawGlyph(5, 20, 0x2603)	-- dec 9731/hex 2603 Snowman
-*/
-static int l_u8g2_DrawGlyph(lua_State *L){
-    if (u8g2 == NULL) return 0;
-    u8g2_DrawGlyph(u8g2,luaL_checkinteger(L, 1),luaL_checkinteger(L, 2),luaL_checkinteger(L, 3));
-    return 1;
-}
-
-/*
-绘制一个三角形（实心多边形）.
-@api u8g2.DrawTriangle(x0,y0,x1,y1,x2,y2)
-@int 点0X位置
-@int 点0Y位置
-@int 点1X位置
-@int 点1Y位置
-@int 点2X位置
-@int 点2Y位置
-@usage
-u8g2.DrawTriangle(20,5, 27,50, 5,32)
-*/
-static int l_u8g2_DrawTriangle(lua_State *L){
-    if (u8g2 == NULL) return 0;
-    u8g2_DrawTriangle(u8g2,luaL_checkinteger(L, 1),luaL_checkinteger(L, 2),luaL_checkinteger(L, 3),luaL_checkinteger(L, 4),luaL_checkinteger(L, 5),luaL_checkinteger(L, 6));
-    return 1;
-}
-
-/*
-定义位图函数是否将写入背景色
-@api u8g2.SetBitmapMode(mode)
-@int mode字体模式，启用（1）或禁用（0）透明模式
-@usage
-u8g2.SetBitmapMode(1)
-*/
-static int l_u8g2_SetBitmapMode(lua_State *L){
-    if (u8g2 == NULL) return 0;
-    u8g2_SetBitmapMode(u8g2,luaL_checkinteger(L, 1));
-    return 1;
-}
-
-#include "rotable.h"
-static const rotable_Reg reg_u8g2[] =
-{
-    { "begin",       l_u8g2_begin,        0},
-    { "close",      l_u8g2_close,       0},
-    { "ClearBuffer",      l_u8g2_ClearBuffer,       0},
-    { "SendBuffer",     l_u8g2_SendBuffer,      0},
-    { "DrawUTF8",    l_u8g2_DrawUTF8,   0},
-    { "SetFontMode",    l_u8g2_SetFontMode,    0},
-    { "SetFont",    l_u8g2_SetFont,    0},
-    { "GetDisplayHeight",    l_u8g2_GetDisplayHeight,    0},
-    { "GetDisplayWidth",    l_u8g2_GetDisplayWidth,    0},
-    { "DrawLine",    l_u8g2_DrawLine,    0},
-    { "DrawCircle",    l_u8g2_DrawCircle,    0},
-    { "DrawDisc",    l_u8g2_DrawDisc,    0},
-    { "DrawEllipse",    l_u8g2_DrawEllipse,    0},
-    { "DrawFilledEllipse",    l_u8g2_DrawFilledEllipse,    0},
-    { "DrawBox",    l_u8g2_DrawBox,    0},
-    { "DrawFrame",    l_u8g2_DrawFrame,    0},
-    { "DrawRBox",    l_u8g2_DrawRBox,    0},
-    { "DrawRFrame",    l_u8g2_DrawRFrame,    0},
-    { "DrawGlyph",    l_u8g2_DrawGlyph,    0},
-    { "DrawTriangle",    l_u8g2_DrawTriangle,    0},
-    { "SetBitmapMode",    l_u8g2_SetBitmapMode,    0},
-    { "font_ncenB08_tr", NULL,       font_ncenB08_tr},
-    { "font_wqy12_t_gb2312", NULL,       font_wqy12_t_gb2312},
-    { "font_unifont_t_symbols", NULL,       font_unifont_t_symbols},
-    { "font_open_iconic_weather_6x_t", NULL,       font_open_iconic_weather_6x_t},
-	{ NULL, NULL, 0}
-};
-
-LUAMOD_API int luaopen_u8g2( lua_State *L ) {
-    u8g2_lua_ref = 0;
-    u8g2 = NULL;
-    luat_newlib(L, reg_u8g2);
-    return 1;
-}
-
-//-----------------------------
-// 往下是一些U8G2方法的默认实现
-
-uint8_t u8x8_luat_gpio_and_delay(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr);
-uint8_t u8x8_luat_byte_hw_i2c(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr);
-uint8_t u8x8_luat_byte_4wire_hw_spi(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr);
-
-LUAT_WEAK int luat_u8g2_setup(luat_u8g2_conf_t *conf) {
-    if (conf->pinType == 1) {
-        u8g2_t* u8g2 = (u8g2_t*)conf->ptr;
-        u8g2_Setup_ssd1306_i2c_128x64_noname_f( u8g2, U8G2_R0, u8x8_byte_sw_i2c, u8x8_luat_gpio_and_delay);
-        u8g2->u8x8.pins[U8X8_PIN_I2C_CLOCK] = conf->pin0;
-        u8g2->u8x8.pins[U8X8_PIN_I2C_DATA] = conf->pin1;
-        LLOGD("setup disp i2c.sw SCL=%ld SDA=%ld", conf->pin0, conf->pin1);
-        u8g2_InitDisplay(u8g2);
-        u8g2_SetPowerSave(u8g2, 0);
-        return 0;
-    }
-    else if (conf->pinType == 2) {
-        u8g2_t* u8g2 = (u8g2_t*)conf->ptr;
-        u8g2_Setup_ssd1306_i2c_128x64_noname_f( u8g2, U8G2_R0, u8x8_luat_byte_hw_i2c, u8x8_luat_gpio_and_delay);
-        LLOGD("setup disp i2c.hw");
-        u8g2_InitDisplay(u8g2);
-        u8g2_SetPowerSave(u8g2, 0);
-        return 0;
-    }
-    else if (conf->pinType == 5) {
-        u8g2_t* u8g2 = (u8g2_t*)conf->ptr;
-        u8g2_Setup_ssd1306_128x64_noname_f( u8g2, U8G2_R0, u8x8_luat_byte_4wire_hw_spi, u8x8_luat_gpio_and_delay);
-        LLOGD("setup disp spi.hw");
-        u8x8_SetPin(u8g2_GetU8x8(u8g2), U8X8_PIN_CS, OLED_SPI_PIN_CS);
-        u8x8_SetPin(u8g2_GetU8x8(u8g2), U8X8_PIN_DC, OLED_SPI_PIN_DC);
-        u8x8_SetPin(u8g2_GetU8x8(u8g2), U8X8_PIN_RESET, OLED_SPI_PIN_RES);
-        u8g2_InitDisplay(u8g2);
-        u8g2_SetPowerSave(u8g2, 0);
-        return 0;
-    }
-    LLOGI("only i2c sw mode is support, by default impl");
-    return -1;
-}
-
-LUAT_WEAK int luat_u8g2_close(luat_u8g2_conf_t *conf) {
-    return 0;
-}
-
-LUAT_WEAK uint8_t u8x8_luat_byte_hw_i2c(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) {
-  static uint8_t buffer[32];		/* u8g2/u8x8 will never send more than 32 bytes */
-  static uint8_t buf_idx;
-  uint8_t *data;
-
-  switch(msg)
-  {
-    case U8X8_MSG_BYTE_SEND:
-      data = (uint8_t *)arg_ptr;
-      while( arg_int > 0 )
-      {
-        buffer[buf_idx++] = *data;
-        data++;
-        arg_int--;
-      }
-      break;
-    case U8X8_MSG_BYTE_INIT:
-      //i2c_init(u8x8);			/* init i2c communication */
-      break;
-    case U8X8_MSG_BYTE_SET_DC:
-      /* ignored for i2c */
-      break;
-    case U8X8_MSG_BYTE_START_TRANSFER:
-      buf_idx = 0;
-      break;
-    case U8X8_MSG_BYTE_END_TRANSFER:
-      luat_i2c_send(i2c_id, u8x8_GetI2CAddress(u8x8) >> 1, buffer, buf_idx);
-      break;
-    default:
-      return 0;
-  }
-  return 1;
-}
-
-int hw_spi_begin(uint8_t spi_mode, uint32_t max_hz, uint8_t cs_pin )
-{
-
-    luat_spi_t u8g2_spi = {0};
-    u8g2_spi.id = spi_id;
-    switch(spi_mode)
-    {
-        case 0: u8g2_spi.CPHA = 0;u8g2_spi.CPOL = 0; break;
-        case 1: u8g2_spi.CPHA = 1;u8g2_spi.CPOL = 0; break;
-        case 2: u8g2_spi.CPHA = 0;u8g2_spi.CPOL = 1; break;
-        case 3: u8g2_spi.CPHA = 1;u8g2_spi.CPOL = 1; break;
-    }
-    u8g2_spi.dataw = 8;
-    u8g2_spi.bit_dict = 1;
-    u8g2_spi.master = 1;
-    u8g2_spi.mode = 1;
-    u8g2_spi.bandrate = max_hz;
-    u8g2_spi.cs = cs_pin;
-    LLOGI("cs_pin=%d",cs_pin);
-    luat_spi_setup(&u8g2_spi);
-    return 1;
-}
-#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
-uint8_t u8x8_luat_byte_4wire_hw_spi(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) {
-
-    uint8_t i;
-    uint8_t *data;
-
-    uint8_t tx[256];
-    uint8_t rx[256];
-
-    static uint8_t buf_idx;
-    static uint8_t buffer_tx[256];
-
-    switch(msg)
-    {
-        case U8X8_MSG_BYTE_SEND:
-            data = (uint8_t *)arg_ptr;
-
-            while( arg_int > 0)
-            {
-                buffer_tx[buf_idx++] = (uint8_t)*data;
-                luat_spi_send(spi_id, (uint8_t*)data, 1);
-                data++;
-                arg_int--;
-            }
-            //luat_spi_send(spi_id, (uint8_t*)data, arg_int);
-            break;
-
-        case U8X8_MSG_BYTE_INIT:
-            /* SPI mode has to be mapped to the mode of the current controller, at least Uno, Due, 101 have different SPI_MODEx values */
-            /*   0: clock active high, data out on falling edge, clock default value is zero, takover on rising edge */
-            /*   1: clock active high, data out on rising edge, clock default value is zero, takover on falling edge */
-            /*   2: clock active low, data out on rising edge */
-            /*   3: clock active low, data out on falling edge */
-            u8x8_gpio_SetCS(u8x8, u8x8->display_info->chip_disable_level);
-            hw_spi_begin(u8x8->display_info->spi_mode, u8x8->display_info->sck_clock_hz, u8x8->pins[U8X8_PIN_CS]);
-            break;
-
-        case U8X8_MSG_BYTE_SET_DC:
-            u8x8_gpio_SetDC(u8x8, arg_int);
-            break;
-
-        case U8X8_MSG_BYTE_START_TRANSFER:
-            u8x8_gpio_SetCS(u8x8, u8x8->display_info->chip_enable_level);
-            u8x8->gpio_and_delay_cb(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->post_chip_enable_wait_ns, NULL);
-            break;
-
-        case U8X8_MSG_BYTE_END_TRANSFER:
-            memset( tx, 0, ARRAY_SIZE(tx)*sizeof(uint8_t) );
-            memset( rx, 0, ARRAY_SIZE(rx)*sizeof(uint8_t) );
-
-            for (i = 0; i < buf_idx; ++i)
-            {
-                tx[i] = buffer_tx[i];
-            }
-            u8x8->gpio_and_delay_cb(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->pre_chip_disable_wait_ns, NULL);
-            u8x8_gpio_SetCS(u8x8, u8x8->display_info->chip_disable_level);
-            buf_idx = 0;
-            break;
-
-        default:
-            return 0;
-    }
-    return 1;
-}
-
-LUAT_WEAK uint8_t u8x8_luat_gpio_and_delay(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
-{
-    switch(msg)
-    {
-        case U8X8_MSG_DELAY_NANO:            // delay arg_int * 1 nano second
-            __asm__ volatile("nop");
-            break;
-
-        case U8X8_MSG_DELAY_100NANO:        // delay arg_int * 100 nano seconds
-            __asm__ volatile("nop");
-            break;
-
-        case U8X8_MSG_DELAY_10MICRO:        // delay arg_int * 10 micro seconds
-            for (uint16_t n = 0; n < 320; n++)
-            {
-                __asm__ volatile("nop");
-            }
-        break;
-
-        case U8X8_MSG_DELAY_MILLI:            // delay arg_int * 1 milli second
-            luat_timer_mdelay(arg_int);
-            break;
-
-        case U8X8_MSG_GPIO_AND_DELAY_INIT:
-            // Function which implements a delay, arg_int contains the amount of ms
-
-            // set spi pin mode
-            if (u8x8->pins[U8X8_PIN_SPI_CLOCK] != 255) {
-                luat_gpio_mode(u8x8->pins[U8X8_PIN_SPI_CLOCK],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);//d0 a5 15 d1 a7 17 res b0 18 dc b1 19 cs a4 14
-                luat_gpio_mode(u8x8->pins[U8X8_PIN_SPI_DATA],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
-                luat_gpio_mode(u8x8->pins[U8X8_PIN_RESET],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
-                luat_gpio_mode(u8x8->pins[U8X8_PIN_DC],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
-                luat_gpio_mode(u8x8->pins[U8X8_PIN_CS],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
-            }
-
-            // set i2c pin mode
-            if (u8x8->pins[U8X8_PIN_I2C_DATA] != 255) {
-                luat_gpio_mode(u8x8->pins[U8X8_PIN_I2C_DATA],Luat_GPIO_OUTPUT, Luat_GPIO_DEFAULT, Luat_GPIO_HIGH);
-                luat_gpio_mode(u8x8->pins[U8X8_PIN_I2C_CLOCK],Luat_GPIO_OUTPUT, Luat_GPIO_DEFAULT, Luat_GPIO_HIGH);
-            }
-
-            // set 8080 pin mode
-            if (u8x8->pins[U8X8_PIN_D0] != 255) {
-                luat_gpio_mode(u8x8->pins[U8X8_PIN_D0],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
-                luat_gpio_mode(u8x8->pins[U8X8_PIN_D1],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
-                luat_gpio_mode(u8x8->pins[U8X8_PIN_D2],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
-                luat_gpio_mode(u8x8->pins[U8X8_PIN_D3],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
-                luat_gpio_mode(u8x8->pins[U8X8_PIN_D4],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
-                luat_gpio_mode(u8x8->pins[U8X8_PIN_D5],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
-                luat_gpio_mode(u8x8->pins[U8X8_PIN_D6],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
-                luat_gpio_mode(u8x8->pins[U8X8_PIN_D7],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
-                luat_gpio_mode(u8x8->pins[U8X8_PIN_E],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
-                luat_gpio_mode(u8x8->pins[U8X8_PIN_DC],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
-                luat_gpio_mode(u8x8->pins[U8X8_PIN_RESET],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
-            }
-
-            // set value
-            luat_gpio_set(u8x8->pins[U8X8_PIN_SPI_CLOCK],1);
-            luat_gpio_set(u8x8->pins[U8X8_PIN_SPI_DATA],1);
-            luat_gpio_set(u8x8->pins[U8X8_PIN_RESET],1);
-            luat_gpio_set(u8x8->pins[U8X8_PIN_DC],1);
-            luat_gpio_set(u8x8->pins[U8X8_PIN_CS],1);
-            break;
-
-        case U8X8_MSG_DELAY_I2C:
-            // arg_int is the I2C speed in 100KHz, e.g. 4 = 400 KHz
-            // arg_int=1: delay by 5us, arg_int = 4: delay by 1.25us
-            for (uint16_t n = 0; n < (arg_int<=2?160:40); n++)
-            {
-                __asm__ volatile("nop");
-            }
-            break;
-
-        //case U8X8_MSG_GPIO_D0:                // D0 or SPI clock pin: Output level in arg_int
-        //case U8X8_MSG_GPIO_SPI_CLOCK:
-
-        //case U8X8_MSG_GPIO_D1:                // D1 or SPI data pin: Output level in arg_int
-        //case U8X8_MSG_GPIO_SPI_DATA:
-
-        case U8X8_MSG_GPIO_D2:                // D2 pin: Output level in arg_int
-            if (arg_int) luat_gpio_set(u8x8->pins[U8X8_PIN_D2],1);
-            else luat_gpio_set(u8x8->pins[U8X8_PIN_D2],0);
-            break;
-
-        case U8X8_MSG_GPIO_D3:                // D3 pin: Output level in arg_int
-            if (arg_int) luat_gpio_set(u8x8->pins[U8X8_PIN_D3],1);
-            else luat_gpio_set(u8x8->pins[U8X8_PIN_D3],0);
-            break;
-
-        case U8X8_MSG_GPIO_D4:                // D4 pin: Output level in arg_int
-            if (arg_int) luat_gpio_set(u8x8->pins[U8X8_PIN_D4],1);
-            else luat_gpio_set(u8x8->pins[U8X8_PIN_D4],0);
-            break;
-
-        case U8X8_MSG_GPIO_D5:                // D5 pin: Output level in arg_int
-            if (arg_int) luat_gpio_set(u8x8->pins[U8X8_PIN_D5],1);
-            else luat_gpio_set(u8x8->pins[U8X8_PIN_D5],0);
-            break;
-
-        case U8X8_MSG_GPIO_D6:                // D6 pin: Output level in arg_int
-            if (arg_int) luat_gpio_set(u8x8->pins[U8X8_PIN_D6],1);
-            else luat_gpio_set(u8x8->pins[U8X8_PIN_D6],0);
-            break;
-
-        case U8X8_MSG_GPIO_D7:                // D7 pin: Output level in arg_int
-            if (arg_int) luat_gpio_set(u8x8->pins[U8X8_PIN_D7],1);
-            else luat_gpio_set(u8x8->pins[U8X8_PIN_D7],0);
-            break;
-
-        case U8X8_MSG_GPIO_E:                // E/WR pin: Output level in arg_int
-            if (arg_int) luat_gpio_set(u8x8->pins[U8X8_PIN_E],1);
-            else luat_gpio_set(u8x8->pins[U8X8_PIN_E],0);
-            break;
-
-        case U8X8_MSG_GPIO_I2C_CLOCK:
-            // arg_int=0: Output low at I2C clock pin
-            // arg_int=1: Input dir with pullup high for I2C clock pin
-            if (arg_int) luat_gpio_set(u8x8->pins[U8X8_PIN_I2C_CLOCK],1);
-            else luat_gpio_set(u8x8->pins[U8X8_PIN_I2C_CLOCK],0);
-            break;
-
-        case U8X8_MSG_GPIO_I2C_DATA:
-            // arg_int=0: Output low at I2C data pin
-            // arg_int=1: Input dir with pullup high for I2C data pin
-            if (arg_int) luat_gpio_set(u8x8->pins[U8X8_PIN_I2C_DATA],1);
-            else luat_gpio_set(u8x8->pins[U8X8_PIN_I2C_DATA],0);
-      break;
-
-        case U8X8_MSG_GPIO_SPI_CLOCK:
-            //Function to define the logic level of the clockline
-            if (arg_int) luat_gpio_set(u8x8->pins[U8X8_PIN_SPI_CLOCK],1);
-            else luat_gpio_set(u8x8->pins[U8X8_PIN_SPI_CLOCK],0);
-            break;
-
-        case U8X8_MSG_GPIO_SPI_DATA:
-            //Function to define the logic level of the data line to the display
-            if (arg_int) luat_gpio_set(u8x8->pins[U8X8_PIN_SPI_DATA],1);
-            else luat_gpio_set(u8x8->pins[U8X8_PIN_SPI_DATA],0);
-            break;
-
-        case U8X8_MSG_GPIO_CS:
-            // Function to define the logic level of the CS line
-            if(arg_int) luat_gpio_set(u8x8->pins[U8X8_PIN_CS],1);
-            else luat_gpio_set(u8x8->pins[U8X8_PIN_CS],0);
-            break;
-
-        case U8X8_MSG_GPIO_DC:
-            //Function to define the logic level of the Data/ Command line
-            if(arg_int) luat_gpio_set(u8x8->pins[U8X8_PIN_DC],1);
-            else luat_gpio_set(u8x8->pins[U8X8_PIN_DC],0);
-            break;
-
-        case U8X8_MSG_GPIO_RESET:
-            //Function to define the logic level of the RESET line
-            if (arg_int) luat_gpio_set(u8x8->pins[U8X8_PIN_RESET],1);
-            else luat_gpio_set(u8x8->pins[U8X8_PIN_RESET],0);
-            break;
-
-        default:
-            //A message was received which is not implemented, return 0 to indicate an error
-            return 0;
-    }
-    return 1;
-}
-
+/*
+@module  u8g2
+@summary u8g2图形处理库
+@author  Dozingfiretruck
+@version 1.0
+@date    2021.01.25
+*/
+#include "luat_base.h"
+#include "luat_malloc.h"
+
+#include "luat_u8g2.h"
+#include "luat_gpio.h"
+#include "luat_timer.h"
+#include "luat_i2c.h"
+#include "luat_spi.h"
+
+#include "u8g2.h"
+
+#define LUAT_LOG_TAG "luat.u8g2"
+#include "luat_log.h"
+
+
+#define font_ncenB08_tr                     0
+#define font_wqy12_t_gb2312                 1
+#define font_unifont_t_symbols              2
+#define font_open_iconic_weather_6x_t       3
+
+static u8g2_t* u8g2;
+static int u8g2_lua_ref;
+static uint8_t i2c_id;
+static uint8_t i2c_speed;
+static uint8_t i2c_addr = 0x3C;
+static uint8_t spi_id;
+static uint8_t OLED_SPI_PIN_RES;
+static uint8_t OLED_SPI_PIN_DC;
+static uint8_t OLED_SPI_PIN_CS;
+
+/*
+u8g2显示屏初始化
+@api u8g2.begin("ssd1306")
+@string 配置信息
+@return int 正常初始化1,已经初始化过2,内存不够3,初始化失败返回4
+@usage
+-- 初始化i2c1的ssd1306
+u8g2.begin("ssd1306")
+*/
+static int l_u8g2_begin(lua_State *L) {
+    if (u8g2 != NULL) {
+        LLOGW("disp is aready inited");
+        lua_pushinteger(L, 2);
+        return 1;
+    }
+    u8g2 = (u8g2_t*)lua_newuserdata(L, sizeof(u8g2_t));
+    if (u8g2 == NULL) {
+        LLOGE("lua_newuserdata return NULL, out of memory ?!");
+        lua_pushinteger(L, 3);
+        return 1;
+    }
+    // TODO: 暂时只支持SSD1306 12864, I2C接口-> i2c1soft, 软件模拟
+    luat_u8g2_conf_t conf = {0};
+    conf.pinType = 2; // I2C 硬件(或者是个假硬件)
+    conf.ptr = u8g2;
+    if (lua_istable(L, 1)) {
+        // 参数解析
+        lua_pushliteral(L, "mode");
+        lua_gettable(L, 1);
+        if (lua_isstring(L, -1)) {
+            const char* mode = luaL_checkstring(L, -1);
+            LLOGD("mode = [%s]", mode);
+            if (strcmp("i2c_sw", mode) == 0) {
+                LLOGD("using i2c_sw");
+                conf.pinType = 1;
+            }
+            else if (strcmp("i2c_hw", mode) == 0) {
+                LLOGD("using i2c_hw");
+                conf.pinType = 2;
+            }
+            else if (strcmp("spi_sw_3pin", mode) == 0) {
+                LLOGD("using spi_sw_3pin");
+                conf.pinType = 3;
+            }
+            else if (strcmp("spi_sw_4pin", mode) == 0) {
+                LLOGD("using spi_sw_4pin");
+                conf.pinType = 4;
+            }
+            else if (strcmp("spi_hw_4pin", mode) == 0) {
+                LLOGD("using spi_hw_4pin");
+                conf.pinType = 5;
+            }
+        }
+        lua_pop(L, 1);
+
+        // 解析pin0 ~ pin7
+        lua_pushliteral(L, "pin0");
+        lua_gettable(L, 1);
+        if (lua_isinteger(L, -1)) {
+            conf.pin0 = luaL_checkinteger(L, -1);
+        }
+        lua_pop(L, 1);
+
+        lua_pushliteral(L, "pin1");
+        lua_gettable(L, 1);
+        if (lua_isinteger(L, -1)) {
+            conf.pin1 = luaL_checkinteger(L, -1);
+        }
+        lua_pop(L, 1);
+
+        lua_pushliteral(L, "pin2");
+        lua_gettable(L, 1);
+        if (lua_isinteger(L, -1)) {
+            conf.pin2 = luaL_checkinteger(L, -1);
+        }
+        lua_pop(L, 1);
+
+        lua_pushliteral(L, "pin3");
+        lua_gettable(L, 1);
+        if (lua_isinteger(L, -1)) {
+            conf.pin3 = luaL_checkinteger(L, -1);
+        }
+        lua_pop(L, 1);
+
+        lua_pushliteral(L, "i2c_id");
+        lua_gettable(L, 1);
+        if (lua_isinteger(L, -1)) {
+            i2c_id = luaL_checkinteger(L, -1);
+        }
+        lua_pop(L, 1);
+
+        lua_pushliteral(L, "i2c_speed");
+        lua_gettable(L, 1);
+        if (lua_isinteger(L, -1)) {
+            i2c_speed = luaL_checkinteger(L, -1);
+        }
+        lua_pop(L, 1);
+
+        lua_pushliteral(L, "i2c_addr");
+        lua_gettable(L, 1);
+        if (lua_isinteger(L, -1)) {
+            i2c_addr = luaL_checkinteger(L, -1);
+        }
+        lua_pop(L, 1);
+
+        lua_pushliteral(L, "spi_id");
+        lua_gettable(L, 1);
+        if (lua_isinteger(L, -1)) {
+            spi_id = luaL_checkinteger(L, -1);
+            LLOGD("spi_id=%d", spi_id);
+        }
+        lua_pop(L, 1);
+
+        lua_pushliteral(L, "OLED_SPI_PIN_RES");
+        lua_gettable(L, 1);
+        if (lua_isinteger(L, -1)) {
+            OLED_SPI_PIN_RES = luaL_checkinteger(L, -1);
+            LLOGD("OLED_SPI_PIN_RES=%d", OLED_SPI_PIN_RES);
+        }
+        lua_pop(L, 1);
+
+        lua_pushliteral(L, "OLED_SPI_PIN_DC");
+        lua_gettable(L, 1);
+        if (lua_isinteger(L, -1)) {
+            OLED_SPI_PIN_DC = luaL_checkinteger(L, -1);
+            LLOGD("OLED_SPI_PIN_DC=%d", OLED_SPI_PIN_DC);
+        }
+        lua_pop(L, 1);
+
+        lua_pushliteral(L, "OLED_SPI_PIN_CS");
+        lua_gettable(L, 1);
+        if (lua_isinteger(L, -1)) {
+            OLED_SPI_PIN_CS = luaL_checkinteger(L, -1);
+            LLOGD("OLED_SPI_PIN_CS=%d", OLED_SPI_PIN_CS);
+        }
+        lua_pop(L, 1);
+
+        // lua_pushliteral(L, "spi_id");
+        // lua_gettable(L, 1);
+        // if (lua_isinteger(L, -1)) {
+        //     spi_id = luaL_checkinteger(L, -1);
+        // }
+        // lua_pop(L, 1);
+
+        // pin4 ~ pin7暂时用不到,先不设置了
+    }
+    LLOGD("pinType=%d", conf.pinType);
+    if (luat_u8g2_setup(&conf)) {
+        u8g2 = NULL;
+        LLOGW("disp init fail");
+        lua_pushinteger(L, 4);
+        return 1; // 初始化失败
+    }
+
+    u8g2_lua_ref = luaL_ref(L, LUA_REGISTRYINDEX);
+
+    u8g2_SetFont(u8g2, u8g2_font_ncenB08_tr); // 设置默认字体
+
+    lua_pushinteger(L, 1);
+    return 1;
+}
+
+/*
+关闭显示屏
+@api u8g2.close()
+@usage
+-- 关闭disp,再次使用disp相关API的话,需要重新初始化
+u8g2.close()
+*/
+static int l_u8g2_close(lua_State *L) {
+    if (u8g2_lua_ref != 0) {
+        lua_geti(L, LUA_REGISTRYINDEX, u8g2_lua_ref);
+        if (lua_isuserdata(L, -1)) {
+            luaL_unref(L, LUA_REGISTRYINDEX, u8g2_lua_ref);
+        }
+        u8g2_lua_ref = 0;
+    }
+    lua_gc(L, LUA_GCCOLLECT, 0);
+    u8g2 = NULL;
+    return 0;
+}
+
+/*
+清屏，清除内存帧缓冲区中的所有像素
+@api u8g2.ClearBuffer()
+@usage
+-- 清屏
+u8g2.ClearBuffer()
+*/
+static int l_u8g2_ClearBuffer(lua_State *L) {
+    if (u8g2 == NULL) return 0;
+    u8g2_ClearBuffer(u8g2);
+    return 0;
+}
+
+/*
+将数据更新到屏幕，将存储器帧缓冲区的内容发送到显示器
+@api u8g2.SendBuffer()
+@usage
+-- 把显示数据更新到屏幕
+u8g2.SendBuffer()
+*/
+static int l_u8g2_SendBuffer(lua_State *L) {
+    if (u8g2 == NULL) return 0;
+    u8g2_SendBuffer(u8g2);
+    return 0;
+}
+
+/*
+在显示屏上画一段文字，在显示屏上画一段文字,要调用u8g2.SendBuffer()才会更新到屏幕
+@api u8g2.DrawUTF8(str, x, y)
+@string 文件内容
+@int 横坐标
+@int 竖坐标
+@usage
+u8g2.DrawUTF8("wifi is ready", 10, 20)
+*/
+static int l_u8g2_DrawUTF8(lua_State *L) {
+    if (u8g2 == NULL) {
+        LLOGW("disp not init yet!!!");
+        return 0;
+    }
+    size_t len;
+    size_t x, y;
+    const char* str = luaL_checklstring(L, 1, &len);
+
+    x = luaL_checkinteger(L, 2);
+    y = luaL_checkinteger(L, 3);
+
+    u8g2_DrawUTF8(u8g2, x, y, str);
+    return 0;
+}
+
+/*
+设置字体模式
+@api u8g2.SetFontMode(mode)
+@int mode字体模式，启用（1）或禁用（0）透明模式
+@usage
+u8g2.SetFontMode(1)
+*/
+static int l_u8g2_SetFontMode(lua_State *L){
+    if (u8g2 == NULL) return 0;
+    int font_mode = luaL_checkinteger(L, 1);
+    if (font_mode < 0) {
+        lua_pushboolean(L, 0);
+    }
+    u8g2_SetFontMode(u8g2, font_mode);
+    lua_pushboolean(L, 1);
+    return 1;
+}
+
+/*
+设置字体
+@api u8g2.SetFont(font)
+@string font, "u8g2_font_ncenB08_tr"为纯英文8x8字节,"u8g2_font_wqy12_t_gb2312"为12x12全中文,"u8g2_font_unifont_t_symbols"为符号.
+@usage
+-- 设置为中文字体,对之后的drawStr有效,使用中文字体需在luat_base.h开启#define USE_U8G2_WQY12_T_GB2312
+u8g2.setFont("u8g2_font_wqy12_t_gb2312")
+*/
+static int l_u8g2_SetFont(lua_State *L) {
+    if (u8g2 == NULL) {
+        LLOGI("disp not init yet!!!");
+        lua_pushboolean(L, 0);
+        return 1;
+    }
+    int font = luaL_checkinteger(L, 1);
+    switch (font)
+        {
+        case font_ncenB08_tr:
+            LLOGI("font_ncenB08_tr");
+            u8g2_SetFont(u8g2, u8g2_font_ncenB08_tr);
+            lua_pushboolean(L, 1);
+            break;
+#if defined USE_U8G2_WQY12_T_GB2312
+        case font_wqy12_t_gb2312:
+            LLOGI("font_wqy12_t_gb2312");
+            u8g2_SetFont(u8g2, u8g2_font_wqy12_t_gb2312);
+            lua_pushboolean(L, 1);
+            break;
+#endif
+#if defined USE_U8G2_UNIFONT_SYMBOLS
+        case font_unifont_t_symbols:
+            LLOGI("font_wqy12_t_gb2312");
+            u8g2_SetFont(u8g2, u8g2_font_unifont_t_symbols);
+            lua_pushboolean(L, 1);
+            break;
+#endif
+#if defined USE_U8G2_ICONIC_WEATHER_6X
+        case font_open_iconic_weather_6x_t:
+            LLOGI("font_wqy12_t_gb2312");
+            u8g2_SetFont(u8g2, u8g2_font_open_iconic_weather_6x_t);
+            lua_pushboolean(L, 1);
+            break;
+#endif
+        default:
+            lua_pushboolean(L, 0);
+            LLOGI("default");
+            break;
+        }
+    return 0;
+}
+
+/*
+获取显示屏高度
+@api u8g2.GetDisplayHeight()
+@return int 显示屏高度
+@usage
+u8g2.GetDisplayHeight()
+*/
+static int l_u8g2_GetDisplayHeight(lua_State *L){
+    if (u8g2 == NULL) return 0;
+    lua_pushinteger(L, u8g2_GetDisplayHeight(u8g2));
+    return 1;
+}
+
+/*
+获取显示屏宽度
+@api u8g2.GetDisplayWidth()
+@return int 显示屏宽度
+@usage
+u8g2.GetDisplayWidth()
+*/
+static int l_u8g2_GetDisplayWidth(lua_State *L){
+    if (u8g2 == NULL) return 0;
+    lua_pushinteger(L, u8g2_GetDisplayWidth(u8g2));
+    return 1;
+}
+
+/*
+在两点之间画一条线.
+@api u8g2.DrawLine(x0,y0,x1,y1)
+@int 第一个点的X位置.
+@int 第一个点的Y位置.
+@int 第二个点的X位置.
+@int 第二个点的Y位置.
+@usage
+u8g2.DrawLine(20, 5, 5, 32)
+*/
+static int l_u8g2_DrawLine(lua_State *L){
+    if (u8g2 == NULL) return 0;
+    u8g2_DrawLine(u8g2,luaL_checkinteger(L, 1),luaL_checkinteger(L, 2),luaL_checkinteger(L, 3),luaL_checkinteger(L, 4));
+    return 1;
+}
+
+/*
+在x,y位置画一个半径为rad的空心圆.
+@api u8g2.DrawCircle(x0,y0,rad,opt)
+@int 圆心位置
+@int 圆心位置
+@int 圆半径.
+@int 选择圆的部分或全部.
+右上： 0x01
+左上：  0x02
+左下： 0x04
+右下：  0x08
+完整圆： (0x01|0x02|0x04|0x08)
+@usage
+u8g2.DrawCircle(60,30,8,15)
+*/
+static int l_u8g2_DrawCircle(lua_State *L){
+    if (u8g2 == NULL) return 0;
+    u8g2_DrawCircle(u8g2,luaL_checkinteger(L, 1),luaL_checkinteger(L, 2),luaL_checkinteger(L, 3),luaL_checkinteger(L, 4));
+    return 1;
+}
+
+/*
+在x,y位置画一个半径为rad的实心圆.
+@api u8g2.DrawDisc(x0,y0,rad,opt)
+@int 圆心位置
+@int 圆心位置
+@int 圆半径.
+@int 选择圆的部分或全部.
+右上： 0x01
+左上：  0x02
+左下： 0x04
+右下：  0x08
+完整圆： (0x01|0x02|0x04|0x08)
+@usage
+u8g2.DrawDisc(60,30,8,15)
+*/
+static int l_u8g2_DrawDisc(lua_State *L){
+    if (u8g2 == NULL) return 0;
+    u8g2_DrawDisc(u8g2,luaL_checkinteger(L, 1),luaL_checkinteger(L, 2),luaL_checkinteger(L, 3),luaL_checkinteger(L, 4));
+    return 1;
+}
+
+/*
+在x,y位置画一个半径为rad的空心椭圆.
+@api u8g2.DrawEllipse(x0,y0,rx,ry,opt)
+@int 圆心位置
+@int 圆心位置
+@int 椭圆大小
+@int 椭圆大小
+@int 选择圆的部分或全部.
+右上： 0x01
+左上：  0x02
+左下： 0x04
+右下：  0x08
+完整圆： (0x01|0x02|0x04|0x08)
+@usage
+u8g2.DrawEllipse(60,30,8,15)
+*/
+static int l_u8g2_DrawEllipse(lua_State *L){
+    if (u8g2 == NULL) return 0;
+    u8g2_DrawEllipse(u8g2,luaL_checkinteger(L, 1),luaL_checkinteger(L, 2),luaL_checkinteger(L, 3),luaL_checkinteger(L, 4),luaL_checkinteger(L, 5));
+    return 1;
+}
+
+/*
+在x,y位置画一个半径为rad的实心椭圆.
+@api u8g2.DrawFilledEllipse(x0,y0,rx,ry,opt)
+@int 圆心位置
+@int 圆心位置
+@int 椭圆大小
+@int 椭圆大小
+@int 选择圆的部分或全部.
+右上： 0x01
+左上：  0x02
+左下： 0x04
+右下：  0x08
+完整圆： (0x01|0x02|0x04|0x08)
+@usage
+u8g2.DrawFilledEllipse(60,30,8,15)
+*/
+static int l_u8g2_DrawFilledEllipse(lua_State *L){
+    if (u8g2 == NULL) return 0;
+    u8g2_DrawFilledEllipse(u8g2,luaL_checkinteger(L, 1),luaL_checkinteger(L, 2),luaL_checkinteger(L, 3),luaL_checkinteger(L, 4),luaL_checkinteger(L, 5));
+    return 1;
+}
+
+/*
+从x / y位置（左上边缘）开始绘制一个框（填充的框）.
+@api u8g2.DrawBox(x,y,w,h)
+@int 左上边缘的X位置
+@int 左上边缘的Y位置
+@int 盒子的宽度
+@int 盒子的高度
+@usage
+u8g2.DrawBox(3,7,25,15)
+*/
+static int l_u8g2_DrawBox(lua_State *L){
+    if (u8g2 == NULL) return 0;
+    u8g2_DrawBox(u8g2,luaL_checkinteger(L, 1),luaL_checkinteger(L, 2),luaL_checkinteger(L, 3),luaL_checkinteger(L, 4));
+    return 1;
+}
+
+/*
+从x / y位置（左上边缘）开始绘制一个框（空框）.
+@api u8g2.DrawFrame(x,y,w,h)
+@int 左上边缘的X位置
+@int 左上边缘的Y位置
+@int 盒子的宽度
+@int 盒子的高度
+@usage
+u8g2.DrawFrame(3,7,25,15)
+*/
+static int l_u8g2_DrawFrame(lua_State *L){
+    if (u8g2 == NULL) return 0;
+    u8g2_DrawFrame(u8g2,luaL_checkinteger(L, 1),luaL_checkinteger(L, 2),luaL_checkinteger(L, 3),luaL_checkinteger(L, 4));
+    return 1;
+}
+
+/*
+绘制一个从x / y位置（左上边缘）开始具有圆形边缘的填充框/框架.
+@api u8g2.DrawRBox(x,y,w,h,r)
+@int 左上边缘的X位置
+@int 左上边缘的Y位置
+@int 盒子的宽度
+@int 盒子的高度
+@int 四个边缘的半径
+@usage
+u8g2.DrawRBox(3,7,25,15)
+*/
+static int l_u8g2_DrawRBox(lua_State *L){
+    if (u8g2 == NULL) return 0;
+    u8g2_DrawRBox(u8g2,luaL_checkinteger(L, 1),luaL_checkinteger(L, 2),luaL_checkinteger(L, 3),luaL_checkinteger(L, 4),luaL_checkinteger(L, 5));
+    return 1;
+}
+
+/*
+绘制一个从x / y位置（左上边缘）开始具有圆形边缘的空框/框架.
+@api u8g2.DrawRFrame(x,y,w,h,r)
+@int 左上边缘的X位置
+@int 左上边缘的Y位置
+@int 盒子的宽度
+@int 盒子的高度
+@int 四个边缘的半径
+@usage
+u8g2.DrawRFrame(3,7,25,15)
+*/
+static int l_u8g2_DrawRFrame(lua_State *L){
+    if (u8g2 == NULL) return 0;
+    u8g2_DrawRFrame(u8g2,luaL_checkinteger(L, 1),luaL_checkinteger(L, 2),luaL_checkinteger(L, 3),luaL_checkinteger(L, 4),luaL_checkinteger(L, 5));
+    return 1;
+}
+
+/*
+绘制一个图形字符。字符放置在指定的像素位置x和y.
+@api u8g2.DrawGlyph(x,y,encoding)
+@int 字符在显示屏上的位置
+@int 字符在显示屏上的位置
+@int 字符的Unicode值
+@usage
+u8g2.SetFont(u8g2_font_unifont_t_symbols)
+u8g2.DrawGlyph(5, 20, 0x2603)	-- dec 9731/hex 2603 Snowman
+*/
+static int l_u8g2_DrawGlyph(lua_State *L){
+    if (u8g2 == NULL) return 0;
+    u8g2_DrawGlyph(u8g2,luaL_checkinteger(L, 1),luaL_checkinteger(L, 2),luaL_checkinteger(L, 3));
+    return 1;
+}
+
+/*
+绘制一个三角形（实心多边形）.
+@api u8g2.DrawTriangle(x0,y0,x1,y1,x2,y2)
+@int 点0X位置
+@int 点0Y位置
+@int 点1X位置
+@int 点1Y位置
+@int 点2X位置
+@int 点2Y位置
+@usage
+u8g2.DrawTriangle(20,5, 27,50, 5,32)
+*/
+static int l_u8g2_DrawTriangle(lua_State *L){
+    if (u8g2 == NULL) return 0;
+    u8g2_DrawTriangle(u8g2,luaL_checkinteger(L, 1),luaL_checkinteger(L, 2),luaL_checkinteger(L, 3),luaL_checkinteger(L, 4),luaL_checkinteger(L, 5),luaL_checkinteger(L, 6));
+    return 1;
+}
+
+/*
+定义位图函数是否将写入背景色
+@api u8g2.SetBitmapMode(mode)
+@int mode字体模式，启用（1）或禁用（0）透明模式
+@usage
+u8g2.SetBitmapMode(1)
+*/
+static int l_u8g2_SetBitmapMode(lua_State *L){
+    if (u8g2 == NULL) return 0;
+    u8g2_SetBitmapMode(u8g2,luaL_checkinteger(L, 1));
+    return 1;
+}
+
+#include "rotable.h"
+static const rotable_Reg reg_u8g2[] =
+{
+    { "begin",       l_u8g2_begin,        0},
+    { "close",      l_u8g2_close,       0},
+    { "ClearBuffer",      l_u8g2_ClearBuffer,       0},
+    { "SendBuffer",     l_u8g2_SendBuffer,      0},
+    { "DrawUTF8",    l_u8g2_DrawUTF8,   0},
+    { "SetFontMode",    l_u8g2_SetFontMode,    0},
+    { "SetFont",    l_u8g2_SetFont,    0},
+    { "GetDisplayHeight",    l_u8g2_GetDisplayHeight,    0},
+    { "GetDisplayWidth",    l_u8g2_GetDisplayWidth,    0},
+    { "DrawLine",    l_u8g2_DrawLine,    0},
+    { "DrawCircle",    l_u8g2_DrawCircle,    0},
+    { "DrawDisc",    l_u8g2_DrawDisc,    0},
+    { "DrawEllipse",    l_u8g2_DrawEllipse,    0},
+    { "DrawFilledEllipse",    l_u8g2_DrawFilledEllipse,    0},
+    { "DrawBox",    l_u8g2_DrawBox,    0},
+    { "DrawFrame",    l_u8g2_DrawFrame,    0},
+    { "DrawRBox",    l_u8g2_DrawRBox,    0},
+    { "DrawRFrame",    l_u8g2_DrawRFrame,    0},
+    { "DrawGlyph",    l_u8g2_DrawGlyph,    0},
+    { "DrawTriangle",    l_u8g2_DrawTriangle,    0},
+    { "SetBitmapMode",    l_u8g2_SetBitmapMode,    0},
+    { "font_ncenB08_tr", NULL,       font_ncenB08_tr},
+    { "font_wqy12_t_gb2312", NULL,       font_wqy12_t_gb2312},
+    { "font_unifont_t_symbols", NULL,       font_unifont_t_symbols},
+    { "font_open_iconic_weather_6x_t", NULL,       font_open_iconic_weather_6x_t},
+	{ NULL, NULL, 0}
+};
+
+LUAMOD_API int luaopen_u8g2( lua_State *L ) {
+    u8g2_lua_ref = 0;
+    u8g2 = NULL;
+    luat_newlib(L, reg_u8g2);
+    return 1;
+}
+
+//-----------------------------
+// 往下是一些U8G2方法的默认实现
+
+uint8_t u8x8_luat_gpio_and_delay(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr);
+uint8_t u8x8_luat_byte_hw_i2c(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr);
+uint8_t u8x8_luat_byte_4wire_hw_spi(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr);
+
+LUAT_WEAK int luat_u8g2_setup(luat_u8g2_conf_t *conf) {
+    if (conf->pinType == 1) {
+        u8g2_t* u8g2 = (u8g2_t*)conf->ptr;
+        u8g2_Setup_ssd1306_i2c_128x64_noname_f( u8g2, U8G2_R0, u8x8_byte_sw_i2c, u8x8_luat_gpio_and_delay);
+        u8g2->u8x8.pins[U8X8_PIN_I2C_CLOCK] = conf->pin0;
+        u8g2->u8x8.pins[U8X8_PIN_I2C_DATA] = conf->pin1;
+        LLOGD("setup disp i2c.sw SCL=%ld SDA=%ld", conf->pin0, conf->pin1);
+        u8g2_InitDisplay(u8g2);
+        u8g2_SetPowerSave(u8g2, 0);
+        return 0;
+    }
+    else if (conf->pinType == 2) {
+        u8g2_t* u8g2 = (u8g2_t*)conf->ptr;
+        u8g2_Setup_ssd1306_i2c_128x64_noname_f( u8g2, U8G2_R0, u8x8_luat_byte_hw_i2c, u8x8_luat_gpio_and_delay);
+        LLOGD("setup disp i2c.hw");
+        u8g2_InitDisplay(u8g2);
+        u8g2_SetPowerSave(u8g2, 0);
+        return 0;
+    }
+    else if (conf->pinType == 5) {
+        u8g2_t* u8g2 = (u8g2_t*)conf->ptr;
+        u8g2_Setup_ssd1306_128x64_noname_f( u8g2, U8G2_R0, u8x8_luat_byte_4wire_hw_spi, u8x8_luat_gpio_and_delay);
+        LLOGD("setup disp spi.hw");
+        u8x8_SetPin(u8g2_GetU8x8(u8g2), U8X8_PIN_CS, OLED_SPI_PIN_CS);
+        u8x8_SetPin(u8g2_GetU8x8(u8g2), U8X8_PIN_DC, OLED_SPI_PIN_DC);
+        u8x8_SetPin(u8g2_GetU8x8(u8g2), U8X8_PIN_RESET, OLED_SPI_PIN_RES);
+        u8g2_InitDisplay(u8g2);
+        u8g2_SetPowerSave(u8g2, 0);
+        return 0;
+    }
+    LLOGI("only i2c sw mode is support, by default impl");
+    return -1;
+}
+
+LUAT_WEAK int luat_u8g2_close(luat_u8g2_conf_t *conf) {
+    return 0;
+}
+
+LUAT_WEAK uint8_t u8x8_luat_byte_hw_i2c(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) {
+  static uint8_t buffer[32];		/* u8g2/u8x8 will never send more than 32 bytes */
+  static uint8_t buf_idx;
+  uint8_t *data;
+
+  switch(msg)
+  {
+    case U8X8_MSG_BYTE_SEND:
+      data = (uint8_t *)arg_ptr;
+      while( arg_int > 0 )
+      {
+        buffer[buf_idx++] = *data;
+        data++;
+        arg_int--;
+      }
+      break;
+    case U8X8_MSG_BYTE_INIT:
+      //i2c_init(u8x8);			/* init i2c communication */
+      luat_i2c_setup(i2c_id,i2c_speed,NULL);
+      break;
+    case U8X8_MSG_BYTE_SET_DC:
+      /* ignored for i2c */
+      break;
+    case U8X8_MSG_BYTE_START_TRANSFER:
+      buf_idx = 0;
+      break;
+    case U8X8_MSG_BYTE_END_TRANSFER:
+      luat_i2c_send(i2c_id, u8x8_GetI2CAddress(u8x8) >> 1, buffer, buf_idx);
+      break;
+    default:
+      return 0;
+  }
+  return 1;
+}
+
+int hw_spi_begin(uint8_t spi_mode, uint32_t max_hz, uint8_t cs_pin )
+{
+
+    luat_spi_t u8g2_spi = {0};
+    u8g2_spi.id = spi_id;
+    switch(spi_mode)
+    {
+        case 0: u8g2_spi.CPHA = 0;u8g2_spi.CPOL = 0; break;
+        case 1: u8g2_spi.CPHA = 1;u8g2_spi.CPOL = 0; break;
+        case 2: u8g2_spi.CPHA = 0;u8g2_spi.CPOL = 1; break;
+        case 3: u8g2_spi.CPHA = 1;u8g2_spi.CPOL = 1; break;
+    }
+    u8g2_spi.dataw = 8;
+    u8g2_spi.bit_dict = 1;
+    u8g2_spi.master = 1;
+    u8g2_spi.mode = 1;
+    u8g2_spi.bandrate = max_hz;
+    u8g2_spi.cs = cs_pin;
+    LLOGI("cs_pin=%d",cs_pin);
+    luat_spi_setup(&u8g2_spi);
+    return 1;
+}
+#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
+uint8_t u8x8_luat_byte_4wire_hw_spi(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) {
+
+    uint8_t i;
+    uint8_t *data;
+
+    uint8_t tx[256];
+    uint8_t rx[256];
+
+    static uint8_t buf_idx;
+    static uint8_t buffer_tx[256];
+
+    switch(msg)
+    {
+        case U8X8_MSG_BYTE_SEND:
+            data = (uint8_t *)arg_ptr;
+
+            while( arg_int > 0)
+            {
+                buffer_tx[buf_idx++] = (uint8_t)*data;
+                luat_spi_send(spi_id, (uint8_t*)data, 1);
+                data++;
+                arg_int--;
+            }
+            //luat_spi_send(spi_id, (uint8_t*)data, arg_int);
+            break;
+
+        case U8X8_MSG_BYTE_INIT:
+            /* SPI mode has to be mapped to the mode of the current controller, at least Uno, Due, 101 have different SPI_MODEx values */
+            /*   0: clock active high, data out on falling edge, clock default value is zero, takover on rising edge */
+            /*   1: clock active high, data out on rising edge, clock default value is zero, takover on falling edge */
+            /*   2: clock active low, data out on rising edge */
+            /*   3: clock active low, data out on falling edge */
+            u8x8_gpio_SetCS(u8x8, u8x8->display_info->chip_disable_level);
+            hw_spi_begin(u8x8->display_info->spi_mode, u8x8->display_info->sck_clock_hz, u8x8->pins[U8X8_PIN_CS]);
+            break;
+
+        case U8X8_MSG_BYTE_SET_DC:
+            u8x8_gpio_SetDC(u8x8, arg_int);
+            break;
+
+        case U8X8_MSG_BYTE_START_TRANSFER:
+            u8x8_gpio_SetCS(u8x8, u8x8->display_info->chip_enable_level);
+            u8x8->gpio_and_delay_cb(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->post_chip_enable_wait_ns, NULL);
+            break;
+
+        case U8X8_MSG_BYTE_END_TRANSFER:
+            memset( tx, 0, ARRAY_SIZE(tx)*sizeof(uint8_t) );
+            memset( rx, 0, ARRAY_SIZE(rx)*sizeof(uint8_t) );
+
+            for (i = 0; i < buf_idx; ++i)
+            {
+                tx[i] = buffer_tx[i];
+            }
+            u8x8->gpio_and_delay_cb(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->pre_chip_disable_wait_ns, NULL);
+            u8x8_gpio_SetCS(u8x8, u8x8->display_info->chip_disable_level);
+            buf_idx = 0;
+            break;
+
+        default:
+            return 0;
+    }
+    return 1;
+}
+
+LUAT_WEAK uint8_t u8x8_luat_gpio_and_delay(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
+{
+    switch(msg)
+    {
+        case U8X8_MSG_DELAY_NANO:            // delay arg_int * 1 nano second
+            __asm__ volatile("nop");
+            break;
+
+        case U8X8_MSG_DELAY_100NANO:        // delay arg_int * 100 nano seconds
+            __asm__ volatile("nop");
+            break;
+
+        case U8X8_MSG_DELAY_10MICRO:        // delay arg_int * 10 micro seconds
+            for (uint16_t n = 0; n < 320; n++)
+            {
+                __asm__ volatile("nop");
+            }
+        break;
+
+        case U8X8_MSG_DELAY_MILLI:            // delay arg_int * 1 milli second
+            luat_timer_mdelay(arg_int);
+            break;
+
+        case U8X8_MSG_GPIO_AND_DELAY_INIT:
+            // Function which implements a delay, arg_int contains the amount of ms
+
+            // set spi pin mode
+            if (u8x8->pins[U8X8_PIN_SPI_CLOCK] != 255) {
+                luat_gpio_mode(u8x8->pins[U8X8_PIN_SPI_CLOCK],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);//d0 a5 15 d1 a7 17 res b0 18 dc b1 19 cs a4 14
+                luat_gpio_mode(u8x8->pins[U8X8_PIN_SPI_DATA],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
+                luat_gpio_mode(u8x8->pins[U8X8_PIN_RESET],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
+                luat_gpio_mode(u8x8->pins[U8X8_PIN_DC],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
+                luat_gpio_mode(u8x8->pins[U8X8_PIN_CS],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
+            }
+
+            // set i2c pin mode
+            if (u8x8->pins[U8X8_PIN_I2C_DATA] != 255) {
+                luat_gpio_mode(u8x8->pins[U8X8_PIN_I2C_DATA],Luat_GPIO_OUTPUT, Luat_GPIO_DEFAULT, Luat_GPIO_HIGH);
+                luat_gpio_mode(u8x8->pins[U8X8_PIN_I2C_CLOCK],Luat_GPIO_OUTPUT, Luat_GPIO_DEFAULT, Luat_GPIO_HIGH);
+            }
+
+            // set 8080 pin mode
+            if (u8x8->pins[U8X8_PIN_D0] != 255) {
+                luat_gpio_mode(u8x8->pins[U8X8_PIN_D0],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
+                luat_gpio_mode(u8x8->pins[U8X8_PIN_D1],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
+                luat_gpio_mode(u8x8->pins[U8X8_PIN_D2],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
+                luat_gpio_mode(u8x8->pins[U8X8_PIN_D3],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
+                luat_gpio_mode(u8x8->pins[U8X8_PIN_D4],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
+                luat_gpio_mode(u8x8->pins[U8X8_PIN_D5],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
+                luat_gpio_mode(u8x8->pins[U8X8_PIN_D6],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
+                luat_gpio_mode(u8x8->pins[U8X8_PIN_D7],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
+                luat_gpio_mode(u8x8->pins[U8X8_PIN_E],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
+                luat_gpio_mode(u8x8->pins[U8X8_PIN_DC],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
+                luat_gpio_mode(u8x8->pins[U8X8_PIN_RESET],Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_HIGH);
+            }
+
+            // set value
+            luat_gpio_set(u8x8->pins[U8X8_PIN_SPI_CLOCK],1);
+            luat_gpio_set(u8x8->pins[U8X8_PIN_SPI_DATA],1);
+            luat_gpio_set(u8x8->pins[U8X8_PIN_RESET],1);
+            luat_gpio_set(u8x8->pins[U8X8_PIN_DC],1);
+            luat_gpio_set(u8x8->pins[U8X8_PIN_CS],1);
+            break;
+
+        case U8X8_MSG_DELAY_I2C:
+            // arg_int is the I2C speed in 100KHz, e.g. 4 = 400 KHz
+            // arg_int=1: delay by 5us, arg_int = 4: delay by 1.25us
+            for (uint16_t n = 0; n < (arg_int<=2?160:40); n++)
+            {
+                __asm__ volatile("nop");
+            }
+            break;
+
+        //case U8X8_MSG_GPIO_D0:                // D0 or SPI clock pin: Output level in arg_int
+        //case U8X8_MSG_GPIO_SPI_CLOCK:
+
+        //case U8X8_MSG_GPIO_D1:                // D1 or SPI data pin: Output level in arg_int
+        //case U8X8_MSG_GPIO_SPI_DATA:
+
+        case U8X8_MSG_GPIO_D2:                // D2 pin: Output level in arg_int
+            if (arg_int) luat_gpio_set(u8x8->pins[U8X8_PIN_D2],1);
+            else luat_gpio_set(u8x8->pins[U8X8_PIN_D2],0);
+            break;
+
+        case U8X8_MSG_GPIO_D3:                // D3 pin: Output level in arg_int
+            if (arg_int) luat_gpio_set(u8x8->pins[U8X8_PIN_D3],1);
+            else luat_gpio_set(u8x8->pins[U8X8_PIN_D3],0);
+            break;
+
+        case U8X8_MSG_GPIO_D4:                // D4 pin: Output level in arg_int
+            if (arg_int) luat_gpio_set(u8x8->pins[U8X8_PIN_D4],1);
+            else luat_gpio_set(u8x8->pins[U8X8_PIN_D4],0);
+            break;
+
+        case U8X8_MSG_GPIO_D5:                // D5 pin: Output level in arg_int
+            if (arg_int) luat_gpio_set(u8x8->pins[U8X8_PIN_D5],1);
+            else luat_gpio_set(u8x8->pins[U8X8_PIN_D5],0);
+            break;
+
+        case U8X8_MSG_GPIO_D6:                // D6 pin: Output level in arg_int
+            if (arg_int) luat_gpio_set(u8x8->pins[U8X8_PIN_D6],1);
+            else luat_gpio_set(u8x8->pins[U8X8_PIN_D6],0);
+            break;
+
+        case U8X8_MSG_GPIO_D7:                // D7 pin: Output level in arg_int
+            if (arg_int) luat_gpio_set(u8x8->pins[U8X8_PIN_D7],1);
+            else luat_gpio_set(u8x8->pins[U8X8_PIN_D7],0);
+            break;
+
+        case U8X8_MSG_GPIO_E:                // E/WR pin: Output level in arg_int
+            if (arg_int) luat_gpio_set(u8x8->pins[U8X8_PIN_E],1);
+            else luat_gpio_set(u8x8->pins[U8X8_PIN_E],0);
+            break;
+
+        case U8X8_MSG_GPIO_I2C_CLOCK:
+            // arg_int=0: Output low at I2C clock pin
+            // arg_int=1: Input dir with pullup high for I2C clock pin
+            if (arg_int) luat_gpio_set(u8x8->pins[U8X8_PIN_I2C_CLOCK],1);
+            else luat_gpio_set(u8x8->pins[U8X8_PIN_I2C_CLOCK],0);
+            break;
+
+        case U8X8_MSG_GPIO_I2C_DATA:
+            // arg_int=0: Output low at I2C data pin
+            // arg_int=1: Input dir with pullup high for I2C data pin
+            if (arg_int) luat_gpio_set(u8x8->pins[U8X8_PIN_I2C_DATA],1);
+            else luat_gpio_set(u8x8->pins[U8X8_PIN_I2C_DATA],0);
+      break;
+
+        case U8X8_MSG_GPIO_SPI_CLOCK:
+            //Function to define the logic level of the clockline
+            if (arg_int) luat_gpio_set(u8x8->pins[U8X8_PIN_SPI_CLOCK],1);
+            else luat_gpio_set(u8x8->pins[U8X8_PIN_SPI_CLOCK],0);
+            break;
+
+        case U8X8_MSG_GPIO_SPI_DATA:
+            //Function to define the logic level of the data line to the display
+            if (arg_int) luat_gpio_set(u8x8->pins[U8X8_PIN_SPI_DATA],1);
+            else luat_gpio_set(u8x8->pins[U8X8_PIN_SPI_DATA],0);
+            break;
+
+        case U8X8_MSG_GPIO_CS:
+            // Function to define the logic level of the CS line
+            if(arg_int) luat_gpio_set(u8x8->pins[U8X8_PIN_CS],1);
+            else luat_gpio_set(u8x8->pins[U8X8_PIN_CS],0);
+            break;
+
+        case U8X8_MSG_GPIO_DC:
+            //Function to define the logic level of the Data/ Command line
+            if(arg_int) luat_gpio_set(u8x8->pins[U8X8_PIN_DC],1);
+            else luat_gpio_set(u8x8->pins[U8X8_PIN_DC],0);
+            break;
+
+        case U8X8_MSG_GPIO_RESET:
+            //Function to define the logic level of the RESET line
+            if (arg_int) luat_gpio_set(u8x8->pins[U8X8_PIN_RESET],1);
+            else luat_gpio_set(u8x8->pins[U8X8_PIN_RESET],0);
+            break;
+
+        default:
+            //A message was received which is not implemented, return 0 to indicate an error
+            return 0;
+    }
+    return 1;
+}
+