diff --git a/mbtk/libgsw_lib/gsw_uart_interface.c b/mbtk/libgsw_lib/gsw_uart_interface.c
new file mode 100755
index 0000000..0544d16
--- /dev/null
+++ b/mbtk/libgsw_lib/gsw_uart_interface.c
@@ -0,0 +1,432 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <string.h>
+#include <errno.h>
+#include <termios.h>
+#include <unistd.h>
+#include <stdint.h>
+#include <sys/ioctl.h>
+#include <dlfcn.h>
+
+#include "gsw_uart_interface.h"
+
+#ifndef LOG_ERR_LEVEL
+#define LOG_ERR_LEVEL  3      /* error conditions */
+#endif
+#ifndef LOG_WARN_LEVEL
+#define LOG_WARN_LEVEL 4   /* warning conditions */
+#endif
+#ifndef LOG_INFO_LEVEL
+#define LOG_INFO_LEVEL 6      /* informational */
+#endif
+#ifndef LOG_DEBUG_LEVEL
+#define LOG_DEBUG_LEVEL 7     /* debug-level messages */
+#endif
+#ifndef LOG_VERBOSE_LEVEL
+#define LOG_VERBOSE_LEVEL 8
+#endif
+
+#define GSW_UART "[HAL][GSW_UART]"
+
+
+#define LOGV(fmt, args ...) \
+    do{ \
+        char *file_ptr_1001 = __FILE__; \
+        char *ptr_1001 = file_ptr_1001 + strlen(file_ptr_1001) - 1;   \
+        char line_1001[10] = {0}; \
+        sprintf(line_1001, "%d", __LINE__); \
+        while(ptr_1001 >= file_ptr_1001 && *ptr_1001){ \
+            if(*ptr_1001 == '/') \
+                 break; \
+            ptr_1001--; \
+        } \
+        fun_ptr_log(LOG_VERBOSE_LEVEL, "%s#%s: "GSW_UART"" fmt, ptr_1001 + 1, line_1001, ##args); \
+    } while(0)
+
+#define LOGI(fmt, args...) \
+    do{ \
+        char *file_ptr_1001 = __FILE__; \
+        char *ptr_1001 = file_ptr_1001 + strlen(file_ptr_1001) - 1;   \
+        char line_1001[10] = {0}; \
+        sprintf(line_1001, "%d", __LINE__); \
+        while(ptr_1001 >= file_ptr_1001 && *ptr_1001){ \
+            if(*ptr_1001 == '/') \
+                 break; \
+            ptr_1001--; \
+        } \
+        fun_ptr_log(LOG_INFO_LEVEL, "%s#%s: "GSW_UART"" fmt, ptr_1001 + 1, line_1001, ##args); \
+    } while(0)
+
+#define LOGD(fmt, args...) \
+    do{ \
+        char *file_ptr_1001 = __FILE__; \
+        char *ptr_1001 = file_ptr_1001 + strlen(file_ptr_1001) - 1;   \
+        char line_1001[10] = {0}; \
+        sprintf(line_1001, "%d", __LINE__); \
+        while(ptr_1001 >= file_ptr_1001 && *ptr_1001){ \
+            if(*ptr_1001 == '/') \
+                 break; \
+            ptr_1001--; \
+        } \
+        fun_ptr_log(LOG_DEBUG_LEVEL, "%s#%s: "GSW_UART"" fmt, ptr_1001 + 1, line_1001, ##args); \
+    } while(0)
+
+#define LOGW(fmt, args...) \
+    do{ \
+        char *file_ptr_1001 = __FILE__; \
+        char *ptr_1001 = file_ptr_1001 + strlen(file_ptr_1001) - 1;   \
+        char line_1001[10] = {0}; \
+        sprintf(line_1001, "%d", __LINE__); \
+        while(ptr_1001 >= file_ptr_1001 && *ptr_1001){ \
+            if(*ptr_1001 == '/') \
+                 break; \
+            ptr_1001--; \
+        } \
+        fun_ptr_log(LOG_WARN_LEVEL, "%s#%s: "GSW_UART"" fmt, ptr_1001 + 1, line_1001, ##args); \
+    } while(0)
+
+#define LOGE(fmt, args...) \
+    do{ \
+        char *file_ptr_1001 = __FILE__; \
+        char *ptr_1001 = file_ptr_1001 + strlen(file_ptr_1001) - 1;   \
+        char line_1001[10] = {0}; \
+        sprintf(line_1001, "%d", __LINE__); \
+        while(ptr_1001 >= file_ptr_1001 && *ptr_1001){ \
+            if(*ptr_1001 == '/') \
+                 break; \
+            ptr_1001--; \
+        } \
+        fun_ptr_log(LOG_ERR_LEVEL, "%s#%s: "GSW_UART"" fmt, ptr_1001 + 1, line_1001, ##args); \
+    } while(0)
+    
+typedef void (*mbtk_log)(int level, const char *format,...);
+static mbtk_log fun_ptr_log = NULL;
+void *dlHandle_uart = NULL;
+char *lynqLib_uart = "/lib/libmbtk_lib.so";
+
+typedef enum
+{
+  GSW_HAL_BAUDRATE_1200=1200,
+  GSW_HAL_BAUDRATE_1800=1800,
+  GSW_HAL_BAUDRATE_4800=4800,
+  GSW_HAL_BAUDRATE_9600=9600,
+  GSW_HAL_BAUDRATE_19200=19200,
+  GSW_HAL_BAUDRATE_38400=38400,
+  GSW_HAL_BAUDRATE_57600=57600,
+  GSW_HAL_BAUDRATE_115200=115200,
+  GSW_HAL_BAUDRATE_230400=230400,
+  GSW_HAL_BAUDRATE_460800=460800,
+  GSW_HAL_BAUDRATE_500000=500000,
+  GSW_HAL_BAUDRATE_576000=576000,
+  GSW_HAL_BAUDRATE_921600=921600
+}gsw_hal_uart_baudrate;
+
+static int handle()
+{
+    if(dlHandle_uart == NULL || fun_ptr_log == NULL)
+    {
+        dlHandle_uart = dlopen(lynqLib_uart, RTLD_NOW);
+        fun_ptr_log = (mbtk_log)dlsym(dlHandle_uart, "mbtk_log");
+        if(fun_ptr_log == NULL || dlHandle_uart == NULL)
+        {
+            return GSW_HAL_NORMAL_FAIL;
+        }
+    }
+    return GSW_HAL_SUCCESS;
+}
+
+
+
+
+int32_t gsw_uart_open_ex(int8_t *port, gsw_hal_uart_baudrate baudrate, uint32_t bits, int8_t parity, uint32_t stop)
+{
+    if (handle())
+        return GSW_HAL_NORMAL_FAIL;
+    int fd = -1;
+    if((fd = open((const char *)port, O_RDWR | O_NOCTTY | O_NONBLOCK)) < 0)
+    {
+        LOGE("open %s failed - %d", port, errno);
+        return -1;
+    }
+    LOGD("Open %s success.", port);
+
+    /* set newtio */
+    struct termios newtio;
+    memset(&newtio, 0, sizeof(newtio));
+    if (tcflush(fd, TCIOFLUSH) < 0) {
+        LOGE("Could not flush uart port");
+        return -1;
+    }
+
+    newtio.c_cc[VTIME]    = 0;   /* inter-character timer unused */
+    newtio.c_cc[VMIN]      = 0;   /* blocking read until 5 chars received */
+
+    /* c_iflag 输入模式 */
+    newtio.c_iflag &= ~(ICRNL |  INLCR);
+    newtio.c_iflag &= ~(IXON | IXOFF | IXANY);
+
+    // /* c_lflag 本地模式 */
+    newtio.c_cflag &= ~ INPCK;
+    newtio.c_cflag |= (CLOCAL |  CREAD);
+
+    // /* c_lflag 本地模式 */
+    newtio.c_lflag &= ~(ICANON | ECHO | ECHOE |  ISIG);
+    /* c_oflag 输出模式 */
+    newtio.c_oflag &= ~ OPOST;
+    newtio.c_oflag &= ~(ONLCR | OCRNL);
+
+    /* c_cflag 控制模式 */
+    newtio.c_cflag &= ~ CSIZE;
+    newtio.c_cflag |=  CS8;
+    newtio.c_cflag &= ~ CSTOPB;
+    newtio.c_cflag &= ~ PARENB;
+
+
+    switch(baudrate)
+    {
+        case GSW_HAL_BAUDRATE_1200:
+            cfsetospeed(&newtio, B1200);
+            cfsetispeed(&newtio, B1200);
+            break;
+        case GSW_HAL_BAUDRATE_1800:
+            cfsetospeed(&newtio, B1800);
+            cfsetispeed(&newtio, B1800);
+            break;
+        case GSW_HAL_BAUDRATE_4800:
+            cfsetospeed(&newtio, B4800);
+            cfsetispeed(&newtio, B4800);
+            break;
+        case GSW_HAL_BAUDRATE_9600:
+            cfsetospeed(&newtio, B9600);
+            cfsetispeed(&newtio, B9600);
+            break;
+        case GSW_HAL_BAUDRATE_19200:
+            cfsetospeed(&newtio, B19200);
+            cfsetispeed(&newtio, B19200);
+            break;
+        case GSW_HAL_BAUDRATE_38400:
+            cfsetospeed(&newtio, B38400);
+            cfsetispeed(&newtio, B38400);
+            break;
+        case GSW_HAL_BAUDRATE_57600:
+            cfsetospeed(&newtio, B57600);
+            cfsetispeed(&newtio, B57600);
+            break;
+        case GSW_HAL_BAUDRATE_115200:
+            cfsetospeed(&newtio, B115200);
+            cfsetispeed(&newtio, B115200);
+            break;
+        case GSW_HAL_BAUDRATE_230400:
+            cfsetospeed(&newtio, B230400);
+            cfsetispeed(&newtio, B230400);
+            break;
+        case GSW_HAL_BAUDRATE_460800:
+            cfsetospeed(&newtio, B460800);
+            cfsetispeed(&newtio, B460800);
+            break;
+        case GSW_HAL_BAUDRATE_500000:
+            cfsetospeed(&newtio, B500000);
+            cfsetispeed(&newtio, B500000);
+            break;
+        case GSW_HAL_BAUDRATE_576000:
+            cfsetospeed(&newtio, B576000);
+            cfsetispeed(&newtio, B576000);
+            break;
+        case GSW_HAL_BAUDRATE_921600:
+            cfsetospeed(&newtio, B921600);
+            cfsetispeed(&newtio, B921600);
+            break;
+        default:
+            cfsetospeed(&newtio, B115200);
+            cfsetispeed(&newtio, B115200);
+            break;
+    }
+
+    switch(bits)
+    {
+        case 5:
+            newtio.c_cflag &= ~CSIZE;
+            newtio.c_cflag |= CS5;
+            break;
+        case 6:
+            newtio.c_cflag &= ~CSIZE;
+            newtio.c_cflag |= CS6;
+            break;
+        case 7:
+            newtio.c_cflag &= ~CSIZE;
+            newtio.c_cflag |= CS7;
+            break;
+        case 8:
+            newtio.c_cflag &= ~CSIZE;
+            newtio.c_cflag |= CS8;
+            break;
+        default:
+            LOGD("No set databit.");
+            break;
+    }
+
+    if(stop == 2) {
+        newtio.c_cflag |= CSTOPB;
+    } else {
+        newtio.c_cflag &= ~CSTOPB;
+    }
+
+    switch (parity)
+    {
+        case 'O':
+        case 'o':// 奇校验
+            newtio.c_cflag |= PARENB;
+            newtio.c_cflag |= PARODD;
+            break;
+        case 'E':
+        case 'e':// 偶校验
+            newtio.c_cflag |= PARENB;
+            newtio.c_cflag &= ~PARODD;
+            break;
+        case 'N':
+        case 'n':// 无奇偶校验
+            newtio.c_cflag &= ~PARENB;
+            break;
+        default:
+            LOGD("No set parity.");
+            break;
+    }
+
+    if (tcsetattr(fd, TCSANOW, &newtio) < 0) {
+        LOGE("Can't set port setting");
+        return -1;
+    }
+
+    return fd;
+}
+
+void gsw_uart_flush(int fd)
+{
+    if (tcflush(fd, TCIOFLUSH) < 0)
+    {
+        LOGE("flush fail\n");
+        //return GSW_HAL_NORMAL_FAIL;
+    }
+    else
+        LOGD("flush success\n");
+    //return GSW_HAL_SUCCESS;
+}
+
+
+int gsw_uart_read(int fd, unsigned char *buffer, int len, int timeout_ms)
+{
+    if (handle())
+        return GSW_HAL_NORMAL_FAIL;
+    if(len <= 0 || timeout_ms < -1)
+    {
+        LOGE("timeout_ms = %d, len = %d; timeout_ms needs to be greater than -1 and len needs to be greater than 0!\n",timeout_ms, len);
+        return GSW_HAL_NORMAL_FAIL;
+    }
+    int flags = fcntl(fd, F_GETFL); // 获取当前状态标志  
+    if (flags == -1)
+    {
+        perror("fcntl get");
+        return GSW_HAL_NORMAL_FAIL;
+    }
+
+    struct termios newtio;
+    if (tcgetattr(fd, &newtio) < 0) {
+        perror("tcgetattr failed");
+        return -1;
+    }
+    if (timeout_ms == 0)
+    {
+        flags |= O_NONBLOCK; // 设置非阻塞标志 
+        fcntl(fd, F_SETFL, flags);
+        newtio.c_cc[VMIN] = 0;
+        newtio.c_cc[VTIME] = 0;
+    }
+    else if (timeout_ms == -1)
+    {
+        flags &= ~O_NONBLOCK; // 清除非阻塞标志
+        fcntl(fd, F_SETFL, flags);
+        newtio.c_cc[VMIN] = 1;
+        newtio.c_cc[VTIME] = 0;
+    }
+    else
+    {
+        flags &= ~O_NONBLOCK; // 清除非阻塞标志
+        fcntl(fd, F_SETFL, flags);
+        newtio.c_cc[VMIN] = 0;
+        newtio.c_cc[VTIME] = timeout_ms/100;
+    }
+    if(timeout_ms != 0)
+        LOGI("%s :VMIN = %d ;VTIME = %d\n",__func__,newtio.c_cc[VMIN],newtio.c_cc[VTIME]);  
+    if (tcsetattr(fd, TCSANOW, &newtio) != 0)
+    {  
+        perror("tcsetattr");  
+        return -1;
+    }
+    //gsw_uart_flush(fd);
+    int data_len =  read(fd, buffer, len);
+    if (data_len < 0)
+    {
+        if(errno == EAGAIN || errno == EWOULDBLOCK)
+            return 0;
+        else
+            return GSW_HAL_NORMAL_FAIL;
+    }
+    return data_len;
+}
+
+
+int gsw_uart_write(int fd, const unsigned char *buffer, int len)
+{
+    //gsw_uart_flush(fd);
+    if (write(fd, buffer, len) < 0)
+    {
+        return GSW_HAL_NORMAL_FAIL;
+    }
+    return GSW_HAL_SUCCESS;
+}
+
+int32_t gsw_uart_ioctl(int32_t fd, uint32_t cmd, void *pvalue)
+{
+    if (handle())
+        return GSW_HAL_NORMAL_FAIL;
+    if (fd < 0 || pvalue == NULL)
+    {  
+        LOGE("Invalid file descriptor");  
+        return GSW_HAL_NORMAL_FAIL;  
+    }  
+    if (ioctl(fd, cmd, pvalue) < 0)
+    {  
+        LOGE("Could not set DCB,error:%d, %s\n",errno, strerror(errno));  
+        return GSW_HAL_NORMAL_FAIL;  
+    }
+    return GSW_HAL_SUCCESS;
+}
+
+
+
+
+void gsw_uart_close(int fd)
+{
+    if (fd <= 0)
+        LOGE("fd = %d fail\n",fd);
+        //return GSW_HAL_NORMAL_FAIL;
+    else
+    {
+        //gsw_uart_flush(fd);
+        int ret = close(fd);
+        if(ret < 0)
+        {
+            LOGE("close fail ret = %d\n",ret);
+        }
+        else
+        {
+            LOGI("close success ret = %d\n",ret);
+        }
+    }
+    
+    //return GSW_HAL_SUCCESS;
+}
+