feat(aht20): add Sensor Hub support, new test app, and example

	Updated AHT20 driver to support Sensor Hub integration.
	Added a dedicated test application to verify functionality with Sensor Hub Humiture Sensor APIs.
	Included a new example demonstrating how to use AHT20 through the Sensor Hub interface.

 On branch update_aht20
 Changes to be committed:
	modified:   components/sensors/humiture/aht20/CMakeLists.txt
	modified:   components/sensors/humiture/aht20/aht20.c
	modified:   components/sensors/humiture/aht20/idf_component.yml
	modified:   components/sensors/humiture/aht20/include/aht20.h
	renamed:    components/sensors/humiture/aht20/test_apps/CMakeLists.txt -> components/sensors/humiture/aht20/test_apps/aht20_driver_test/CMakeLists.txt
	renamed:    components/sensors/humiture/aht20/test_apps/main/CMakeLists.txt -> components/sensors/humiture/aht20/test_apps/aht20_driver_test/main/CMakeLists.txt
	renamed:    components/sensors/humiture/aht20/test_apps/main/Kconfig.projbuild -> components/sensors/humiture/aht20/test_apps/aht20_driver_test/main/Kconfig.projbuild
	renamed:    components/sensors/humiture/aht20/test_apps/main/aht20_test_app.c -> components/sensors/humiture/aht20/test_apps/aht20_driver_test/main/aht20_test_app.c
	renamed:    components/sensors/humiture/aht20/test_apps/main/idf_component.yml -> components/sensors/humiture/aht20/test_apps/aht20_driver_test/main/idf_component.yml
	renamed:    components/sensors/humiture/aht20/test_apps/pytest_aht20.py -> components/sensors/humiture/aht20/test_apps/aht20_driver_test/pytest_aht20.py
	renamed:    components/sensors/humiture/aht20/test_apps/sdkconfig.defaults -> components/sensors/humiture/aht20/test_apps/aht20_driver_test/sdkconfig.defaults
	new file:   components/sensors/humiture/aht20/test_apps/aht20_sensor_hub_humiture/CMakeLists.txt
	new file:   components/sensors/humiture/aht20/test_apps/aht20_sensor_hub_humiture/main/CMakeLists.txt
	new file:   components/sensors/humiture/aht20/test_apps/aht20_sensor_hub_humiture/main/Kconfig.projbuild
	new file:   components/sensors/humiture/aht20/test_apps/aht20_sensor_hub_humiture/main/aht20_Sensor_Hub_Humiture.c
	new file:   components/sensors/humiture/aht20/test_apps/aht20_sensor_hub_humiture/main/idf_component.yml
	new file:   components/sensors/humiture/aht20/test_apps/aht20_sensor_hub_humiture/pytest_aht20.py
	new file:   components/sensors/humiture/aht20/test_apps/aht20_sensor_hub_humiture/sdkconfig.defaults
	new file:   examples/sensors/aht20_Sensor_Hub/CMakeLists.txt
	new file:   examples/sensors/aht20_Sensor_Hub/README.md
	new file:   examples/sensors/aht20_Sensor_Hub/main/CMakeLists.txt
	new file:   examples/sensors/aht20_Sensor_Hub/main/Kconfig.projbuild
	new file:   examples/sensors/aht20_Sensor_Hub/main/aht20_demo_sensor_hub.c
	new file:   examples/sensors/aht20_Sensor_Hub/main/idf_component.yml
	modified:   examples/sensors/aht20_demo/CMakeLists.txt
	modified:   examples/sensors/aht20_demo/main/aht20_demo.c

Author: jeetrohan

components/sensors/humiture/aht20/CMakeLists.txt

@@ -1,2 +1,10 @@
 idf_component_register(SRCS "aht20.c"
                     INCLUDE_DIRS "include")
+
+
+if(CONFIG_SENSOR_INCLUDED_HUMITURE)
+    target_link_libraries(${COMPONENT_LIB} INTERFACE "-u humiture_aht20_init")
+endif()
+
+include(package_manager)
+cu_pkg_define_version(${CMAKE_CURRENT_LIST_DIR})

components/sensors/humiture/aht20/aht20.c

@@ -15,6 +15,9 @@
  */
 
 #include <stdio.h>
+
+#include "iot_sensor_hub.h"
+
 #include "aht20.h"
 
 static const char *s_TAG = "AHT20";
@@ -300,9 +303,104 @@ aht20_handle_t aht20_create(i2c_bus_handle_t bus_handle, uint8_t aht20_address)
     return my_aht20_handle;
 }
 
-void aht20_remove(aht20_handle_t *aht20ptr)
+esp_err_t aht20_remove(aht20_handle_t *aht20ptr)
 {
+    if (*aht20ptr == NULL) {
+        return ESP_ERR_INVALID_ARG;
+    }
     i2c_bus_device_delete(&((*aht20ptr)->i2c_dev));
     free(*aht20ptr);
     *aht20ptr = NULL; // now AHT20 handle is not a dangling pointer
+    return ESP_OK;
+}
+
+#ifdef CONFIG_SENSOR_INCLUDED_HUMITURE
+
+static aht20_handle_t aht20 = NULL;
+static bool is_init = false;
+
+esp_err_t humiture_aht20_init(i2c_bus_handle_t i2c_bus, uint8_t addr)
+{
+    if (is_init || !i2c_bus) {
+        return ESP_FAIL;
+    }
+
+    aht20 = aht20_create(i2c_bus, addr);
+
+    if (!aht20) {
+        return ESP_FAIL;
+    }
+
+    ESP_RETURN_ON_ERROR(aht20_init(aht20), s_TAG, "");
+
+    is_init = true;
+    return ESP_OK;
+}
+
+esp_err_t humiture_aht20_deinit(void)
+{
+    if (!is_init) {
+        return ESP_FAIL;
+    }
+
+    ESP_RETURN_ON_ERROR(aht20_remove(&aht20), s_TAG, "");
+
+    is_init = false;
+    return ESP_OK;
+}
+
+esp_err_t humiture_aht20_test(void)
+{
+    if (!is_init) {
+        return ESP_FAIL;
+    }
+
+    return ESP_OK;
+}
+
+esp_err_t humiture_aht20_acquire_humidity(float *h)
+{
+    if (!is_init) {
+        return ESP_FAIL;
+    }
+
+    float humidity = 0;
+    esp_err_t ret = aht20_read_humidity(aht20, &humidity);
+
+    if (ret == ESP_OK) {
+        *h = humidity;
+        return ESP_OK;
+    }
+    *h = 0;
+    return ESP_FAIL;
 }
+
+esp_err_t humiture_aht20_acquire_temperature(float *t)
+{
+    if (!is_init) {
+        return ESP_FAIL;
+    }
+
+    float temperature = 0;
+    esp_err_t ret = aht20_read_temperature(aht20, &temperature);
+
+    if (ret == ESP_OK) {
+        *t = temperature;
+        return ESP_OK;
+    }
+
+    *t = 0;
+    return ESP_FAIL;
+}
+
+static humiture_impl_t aht20_impl = {
+    .init = humiture_aht20_init,
+    .deinit = humiture_aht20_deinit,
+    .test = humiture_aht20_test,
+    .acquire_humidity = humiture_aht20_acquire_humidity,
+    .acquire_temperature = humiture_aht20_acquire_temperature,
+};
+
+SENSOR_HUB_DETECT_FN(HUMITURE_ID, aht20, &aht20_impl);
+
+#endif

components/sensors/humiture/aht20/idf_component.yml

@@ -18,10 +18,15 @@ dependencies:
     public: true
     override_path: "../../../i2c_bus"
 
+  sensor_hub:
+    public: true
+    override_path: "../../sensor_hub"
+
   idf: ">=4.0"
 
 examples:
   - path: ../../../examples/sensors/aht20_demo
+  - path: ../../../examples/sensors/aht20_Sensor_Hub
 
 targets:
   - esp32

components/sensors/humiture/aht20/include/aht20.h

@@ -196,11 +196,13 @@ aht20_handle_t aht20_create(i2c_bus_handle_t bus_handle, uint8_t aht20_address);
 /**
 * @brief free the resources associated with AHT20 device
 *
-* @param[in] aht20_handler address of
- AHT20 device handle
+* @param[in] aht20_handler address of AHT20 device handle
 *
+* @return
+*      - ESP_ERR_INVALID_ARG: Invalid argument
+*      - ESP_OK : successful
 */
-void aht20_remove(aht20_handle_t *aht20_handler);
+esp_err_t aht20_remove(aht20_handle_t *aht20_handler);
 
 #ifdef __cplusplus
 }

components/sensors/humiture/aht20/test_apps/CMakeLists.txt renamed to components/sensors/humiture/aht20/test_apps/aht20_driver_test/CMakeLists.txt

@@ -28,7 +28,7 @@
 #define I2C_MASTER_FREQ_HZ      100000
 
 // Global handles
-i2c_master_bus_handle_t my_i2c_bus_handle = NULL;
+i2c_bus_handle_t my_i2c_bus_handle = NULL;
 aht20_handle_t aht20_handle = NULL;
 
 /*******************************Memory Leak Checks****************************/
@@ -64,17 +64,17 @@ void tearDown(void)
 /*******************************I2C Master Bus Initialization****************************/
 void i2c_master_init(void)
 {
-    i2c_master_bus_config_t i2c_mst_config = {
-        .clk_source = I2C_CLK_SRC_DEFAULT,
-        .i2c_port = I2C_MASTER_NUM,
-        .scl_io_num = I2C_MASTER_SCL_IO,
+    const i2c_config_t conf = {
+        .mode = I2C_MODE_MASTER,
         .sda_io_num = I2C_MASTER_SDA_IO,
-        .glitch_ignore_cnt = 7,
-        .flags.enable_internal_pullup = true,
+        .sda_pullup_en = GPIO_PULLUP_ENABLE,
+        .scl_io_num = I2C_MASTER_SCL_IO,
+        .scl_pullup_en = GPIO_PULLUP_ENABLE,
+        .master.clk_speed = I2C_MASTER_FREQ_HZ,
     };
 
     printf("Requesting I2C bus handle\n");
-    ESP_ERROR_CHECK(i2c_new_master_bus(&i2c_mst_config, &my_i2c_bus_handle));
+    my_i2c_bus_handle = i2c_bus_create(I2C_MASTER_NUM, &conf);
     printf("I2C bus handle acquired\n");
 }
 /*******************************I2C Master Bus Initialization Over****************************/
@@ -99,7 +99,7 @@ esp_err_t aht20_init_test()
 void aht20_deinit_test(void)
 {
     aht20_remove(&aht20_handle);
-    i2c_del_master_bus(my_i2c_bus_handle);
+    i2c_bus_delete(&my_i2c_bus_handle);
 }
 /*******************************AHT20 Device Deinitializtion Over****************************/
 

components/sensors/humiture/aht20/test_apps/main/CMakeLists.txt renamed to components/sensors/humiture/aht20/test_apps/aht20_driver_test/main/CMakeLists.txt

@@ -1,4 +1,4 @@
 dependencies:
   aht20:
     version: "*"
-    override_path: "../../"
+    override_path: "../../../"