Add basic change for v1453

Change-Id: I9497a61bbc3717f66413794a4e7dee0347c0bc33
diff --git a/mbtk/mbtk_at/inc/mbtk_adc.h b/mbtk/mbtk_at/inc/mbtk_adc.h
new file mode 100755
index 0000000..29dfba4
--- /dev/null
+++ b/mbtk/mbtk_at/inc/mbtk_adc.h
@@ -0,0 +1,45 @@
+/*
+    MBTK ADC interface define.
+*/
+/******************************************************************************
+
+                   EDIT HISTORY FOR FILE
+
+  WHEN        WHO       WHAT,WHERE,WHY
+--------    --------    -------------------------------------------------------
+2023/4/3      b.liu    Initial version
+
+******************************************************************************/
+#ifndef __MBTK_ADC_H__
+#define __MBTK_ADC_H__
+/*
+* MBTK ADC define.
+*/
+typedef enum {
+    MBTK_ADC0 = 0,  /* ADC 0 */
+    MBTK_ADC1,       /* ADC 1 */
+    MBTK_ADC2       /* ADC 2 */
+} mbtk_adc_enum;
+
+
+/*===========================================================================
+FUNCTION mbtk_adc_get
+
+DESCRIPTION:
+  Get ADC's value.
+
+PARAMETERS:
+  adc_dev : Refer to : ADC_DEVICE_802/ADC_DEVICE_803/ADC_DEVICE_PMIC802/ADC_DEVICE_AUX
+  adc [IN]: ADC path, refer to mbtk_adc_enum.
+
+RETURN VALUE:
+  int : ADC value.
+
+===========================================================================*/
+int mbtk_adc_get(mbtk_adc_enum adc);
+int mbtk_adc_close(void);
+int mbtk_at_adc(int value);
+
+#endif /* __MBTK_ADC_H__ */
+
+