WIP

include/zh_bh1750.h

@@ -2,12 +2,19 @@
 
 #include "esp_err.h"
 #include "esp_log.h"
+#ifdef CONFIG_IDF_TARGET_ESP8266
+#include "driver/i2c.h"
+#else
 #include "driver/i2c_master.h"
-// #include "driver/i2c.h"
-// #ifdef CONFIG_IDF_TARGET_ESP8266
+#endif
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
-// #endif
+
+#ifdef CONFIG_IDF_TARGET_ESP8266
+typedef struct
+{
+} i2c_master_bus_handle_t;
+#endif
 
 /**
  * @brief Default values for zh_bh1750_init_config_t structure for initial initialization of the sensor.
@@ -18,7 +25,8 @@
         .i2c_address = I2C_ADDRESS_LOW,    \
         .operation_mode = HIGH_RESOLUTION, \
         .work_mode = ONE_TIME,             \
-        .i2c_port = 0                      \
+        .i2c_port = 0,                     \
+        .i2c_handle = 0                    \
     }
 
 #ifdef __cplusplus
@@ -51,8 +59,8 @@ extern "C"
             CONTINUOUSLY, // Continuously measurement.
             ONE_TIME      // One time measurement. Sensor is power down after measurement.
         } work_mode;
-        bool i2c_port; // I2C port.
-        i2c_master_bus_handle_t i2c_handle;
+        bool i2c_port;                      // I2C port.
+        i2c_master_bus_handle_t i2c_handle; // Unique I2C bus handle.
     } zh_bh1750_init_config_t;
 
     /**
@@ -69,8 +77,9 @@ extern "C"
      * @return
      *              - ESP_OK if initialization was success
      *              - ESP_ERR_INVALID_ARG if parameter error
+     *              - ESP_ERR_NOT_FOUND if sensor not connected or not responded
      */
-    esp_err_t zh_bh1750_init(zh_bh1750_init_config_t *config);
+    esp_err_t zh_bh1750_init(const zh_bh1750_init_config_t *config);
 
     /**
      * @brief Read BH1750 sensor.
@@ -102,7 +111,7 @@ extern "C"
      *              - ESP_ERR_INVALID_STATE if I2C driver not installed or not in master mode
      *              - ESP_ERR_TIMEOUT if operation timeout because the bus is busy
      */
-    esp_err_t zh_bh1750_adjust(uint8_t value);
+    esp_err_t zh_bh1750_adjust(const uint8_t value);
 
 #ifdef __cplusplus
 }