repair ch438 driver

APP_Framework/Framework/sensor/co2/Kconfig

@@ -43,7 +43,24 @@ config SENSOR_ZG09
                 endif
 
                 if ADD_RTTHREAD_FETURES
+                        config SENSOR_ZG09_DRIVER_EXTUART
+                                bool "Using extra uart to support zg09"
+                                default y
 
+                        config SENSOR_DEVICE_ZG09_DEV
+                                string "zg09 device uart path"
+                                default "/dev/uart2_dev2"
+                                depends on !SENSOR_ZG09_DRIVER_EXTUART
+
+                        if SENSOR_ZG09_DRIVER_EXTUART
+                                config SENSOR_DEVICE_ZG09_DEV
+                                        string "zg09 device extra uart path"
+                                        default "/dev/extuart_dev4"
+
+                                config SENSOR_DEVICE_ZG09_DEV_EXT_PORT
+                                        int "if ZG09 device using extuart, choose port"
+                                        default "4"
+                        endif
                 endif                
         endif
 

APP_Framework/Framework/sensor/co2/zg09/SConscript

@@ -0,0 +1,10 @@
+from building import *
+import os
+
+cwd = GetCurrentDir()
+src = []
+if GetDepend(['SENSOR_ZG09']):
+    src += ['zg09.c']
+group = DefineGroup('sensor co2 zg09', src, depend = [], CPPPATH = [cwd])
+
+Return('group')