[lighting-app] Put application-specific config file to override the d…

…efault configuration values (#26109)

* [lighting-app] Put application-specific config file to override the default configuration values

* Address review comment

examples/lighting-app/esp32/main/Kconfig.projbuild

@@ -60,6 +60,10 @@ menu "Demo"
  depends on IDF_TARGET_ESP32C6
  endchoice
 
+ config CHIP_PROJECT_CONFIG
+ string "CHIP Project Configuration file"
+ default "main/include/CHIPProjectConfig.h"
+
  choice LED_TYPE
  prompt "LED type"
  default LED_TYPE_RMT if DEVICE_TYPE_ESP32_C3_DEVKITM || DEVICE_TYPE_ESP32_S3_DEVKITM || DEVICE_TYPE_ESP32H2_DEVKITC || DEVICE_TYPE_ESP32_C6_DEVKITC

examples/lighting-app/esp32/main/include/CHIPProjectConfig.h

@@ -0,0 +1,47 @@
+/*
+ *
+ * Copyright (c) 2023 Project CHIP Authors
+ * All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @file
+ * Example project configuration file for CHIP.
+ *
+ * This is a place to put application or project-specific overrides
+ * to the default configuration values for general CHIP features.
+ *
+ */
+
+#pragma once
+
+/**
+ * @def CHIP_CONFIG_MAX_FABRICS
+ *
+ * @brief
+ * Maximum number of fabrics the device can participate in. Each fabric can
+ * provision the device with its unique operational credentials and manage
+ * its own access control lists.
+ */
+#define CHIP_CONFIG_MAX_FABRICS 5 // 5 is the minimum number of supported fabrics
+
+/**
+ * @def CHIP_IM_MAX_NUM_SUBSCRIPTIONS
+ *
+ * @brief Defines the maximum number of ReadHandler for subscriptions, limits the number of active subscription transactions on
+ * server.
+ *
+ */
+#define CHIP_IM_MAX_NUM_SUBSCRIPTIONS 45

src/platform/ESP32/CHIPPlatformConfig.h

@@ -53,9 +53,12 @@
 
 #define CHIP_CONFIG_MAX_UNSOLICITED_MESSAGE_HANDLERS CONFIG_MAX_UNSOLICITED_MESSAGE_HANDLERS
 #define CHIP_CONFIG_MAX_EXCHANGE_CONTEXTS CONFIG_MAX_EXCHANGE_CONTEXTS
-#define CHIP_CONFIG_MAX_FABRICS CONFIG_MAX_FABRICS
 #define CHIP_CONFIG_SECURITY_TEST_MODE CONFIG_SECURITY_TEST_MODE
 
+#ifndef CHIP_CONFIG_MAX_FABRICS
+#define CHIP_CONFIG_MAX_FABRICS CONFIG_MAX_FABRICS
+#endif
+
 #ifdef CONFIG_ENABLE_WIFI_STATION
 #define CHIP_DEVICE_CONFIG_ENABLE_WIFI_STATION 1
 #else