OTA Work in progress

.cproject

@@ -1,198 +1,114 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
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-    	
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-                				
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-                    					
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-                    					
 					<extension id="org.eclipse.cdt.core.GmakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-                    					
 					<extension id="org.eclipse.cdt.core.GLDErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-                    					
 					<extension id="org.eclipse.cdt.core.CWDLocator" point="org.eclipse.cdt.core.ErrorParser"/>
-                    					
 					<extension id="org.eclipse.cdt.core.GCCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-                    				
 				</extensions>
-                			
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-            			
 			<storageModule moduleId="cdtBuildSystem" version="4.0.0">
-                				
 				<configuration artifactName="${ProjName}" buildProperties="" description="" id="cdt.managedbuild.toolchain.gnu.cross.base.1476804786" name="Default" optionalBuildProperties="org.eclipse.cdt.docker.launcher.containerbuild.property.selectedvolumes=,org.eclipse.cdt.docker.launcher.containerbuild.property.volumes=" parent="org.eclipse.cdt.build.core.emptycfg">
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-                        						
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-                            							
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-                            							
 							<option id="cdt.managedbuild.option.gnu.cross.path.144124148" name="Path" superClass="cdt.managedbuild.option.gnu.cross.path"/>
-                            							
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-                            							
+							<builder arguments="" command="make" id="cdt.managedbuild.builder.gnu.cross.1011968237" keepEnvironmentInBuildfile="false" managedBuildOn="false" name="Gnu Make Builder" parallelBuildOn="true" parallelizationNumber="optimal" superClass="cdt.managedbuild.builder.gnu.cross"/>
-                            <builder arguments="${IDF_PATH}/tools/windows/eclipse_make.py" command="python" id="cdt.managedbuild.builder.gnu.cross.1011968237" keepEnvironmentInBuildfile="false" managedBuildOn="false" name="Gnu Make Builder" parallelBuildOn="true" parallelizationNumber="optimal" superClass="cdt.managedbuild.builder.gnu.cross"/>
-                            							
 							<tool id="cdt.managedbuild.tool.gnu.cross.c.compiler.1502936757" name="Cross GCC Compiler" superClass="cdt.managedbuild.tool.gnu.cross.c.compiler">
-                                								
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-                                							
 							</tool>
-                            							
 							<tool id="cdt.managedbuild.tool.gnu.cross.cpp.compiler.254690821" name="Cross G++ Compiler" superClass="cdt.managedbuild.tool.gnu.cross.cpp.compiler">
-                                								
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-                            							
 							<tool id="cdt.managedbuild.tool.gnu.cross.c.linker.407309631" name="Cross GCC Linker" superClass="cdt.managedbuild.tool.gnu.cross.c.linker"/>
-                            							
 							<tool id="cdt.managedbuild.tool.gnu.cross.cpp.linker.765822218" name="Cross G++ Linker" superClass="cdt.managedbuild.tool.gnu.cross.cpp.linker">
-                                								
 								<inputType id="cdt.managedbuild.tool.gnu.cpp.linker.input.655344480" superClass="cdt.managedbuild.tool.gnu.cpp.linker.input">
-                                    									
 									<additionalInput kind="additionalinputdependency" paths="$(USER_OBJS)"/>
-                                    									
 									<additionalInput kind="additionalinput" paths="$(LIBS)"/>
-                                    								
 								</inputType>
-                                							
 							</tool>
-                            							
 							<tool id="cdt.managedbuild.tool.gnu.cross.archiver.1494383819" name="Cross GCC Archiver" superClass="cdt.managedbuild.tool.gnu.cross.archiver"/>
-                            							
 							<tool id="cdt.managedbuild.tool.gnu.cross.assembler.280698320" name="Cross GCC Assembler" superClass="cdt.managedbuild.tool.gnu.cross.assembler">
-                                								
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-                                							
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-                            						
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-                    				
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-                			
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-            			
 			<storageModule moduleId="org.eclipse.cdt.core.externalSettings"/>
-            		
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-        	
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-    	
 	<storageModule moduleId="cdtBuildSystem" version="4.0.0">
-        		
 		<project id="squeezelite-esp32.null.1272501664" name="squeezelite-esp32"/>
-        	
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-    	
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-            			
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-            		
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-            			
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-            		
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-            			
 			<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>
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-        		
 		<configuration configurationName="Default">
-            			
 			<resource resourceType="PROJECT" workspacePath="/squeezelite-esp32"/>
-            		
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-        	
 	</storageModule>
-    	
 	<storageModule moduleId="org.eclipse.cdt.make.core.buildtargets">
-        		
 		<buildTargets>
-            			
 			<target name="all" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-                				
 				<buildCommand>make</buildCommand>
-                				
+				<buildArguments>-j8</buildArguments>
-                <buildArguments/>
-                				
 				<buildTarget>all</buildTarget>
-                				
 				<stopOnError>true</stopOnError>
-                				
+				<useDefaultCommand>false</useDefaultCommand>
-                <useDefaultCommand>true</useDefaultCommand>
-                				
 				<runAllBuilders>true</runAllBuilders>
-                			
 			</target>
-            			
 			<target name="size-components" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-                				
 				<buildCommand>make</buildCommand>
-                				
-                <buildArguments/>
-                				
 				<buildTarget>size-components</buildTarget>
-                				
 				<stopOnError>true</stopOnError>
-                				
 				<useDefaultCommand>true</useDefaultCommand>
-                				
 				<runAllBuilders>true</runAllBuilders>
-                			
 			</target>
-            			
 			<target name="flash" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-                				
 				<buildCommand>make</buildCommand>
-                				
-                <buildArguments/>
-                				
 				<buildTarget>flash</buildTarget>
-                				
 				<stopOnError>true</stopOnError>
-                				
 				<useDefaultCommand>true</useDefaultCommand>
-                				
 				<runAllBuilders>true</runAllBuilders>
-                			
 			</target>
-            		
+			<target name="recovery" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j8 app PROJECT_NAME="recovery.custom"  EXTRA_CFLAGS=" -DRECOVERY_APPLICATION=1"</buildArguments>
+				<buildTarget>recovery</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>false</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="app" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>python</buildCommand>
+				<buildArguments>${IDF_PATH}/tools/windows/eclipse_make.py -j8</buildArguments>
+				<buildTarget>app</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
 		</buildTargets>
-        	
 	</storageModule>
-    
 </cproject>

.settings/language.settings.xml

@@ -1,28 +1,12 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <project>
-    	
 	<configuration id="cdt.managedbuild.toolchain.gnu.cross.base.1476804786" name="Default">
-        		
 		<extension point="org.eclipse.cdt.core.LanguageSettingsProvider">
-            			
 			<provider copy-of="extension" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider"/>
-            			
 			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
-            			
+			<provider-reference id="org.eclipse.cdt.managedbuilder.core.GCCBuildCommandParser" ref="shared-provider"/>
-            <provider class="org.eclipse.cdt.managedbuilder.language.settings.providers.GCCBuildCommandParser" id="org.eclipse.cdt.managedbuilder.core.GCCBuildCommandParser" keep-relative-paths="false" name="CDT GCC Build Output Parser" parameter="xtensa-esp32-elf-(gcc|g\+\+|c\+\+|cc|cpp|clang)" prefer-non-shared="true"/>
+			<provider-reference id="org.eclipse.cdt.build.crossgcc.CrossGCCBuiltinSpecsDetector" ref="shared-provider"/>
-            			
-            <provider class="org.eclipse.cdt.internal.build.crossgcc.CrossGCCBuiltinSpecsDetector" console="false" env-hash="1104469646593236716" id="org.eclipse.cdt.build.crossgcc.CrossGCCBuiltinSpecsDetector" keep-relative-paths="false" name="CDT Cross GCC Built-in Compiler Settings" parameter="xtensa-esp32-elf-gcc ${FLAGS} -std=c++11 -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
-                				
-                <language-scope id="org.eclipse.cdt.core.gcc"/>
-                				
-                <language-scope id="org.eclipse.cdt.core.g++"/>
-                			
-            </provider>
-            			
 			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-            		
 		</extension>
-        	
 	</configuration>
-    
 </project>

Makefile

@@ -1,7 +1,14 @@
-#
+# build system (Jenkins) should pass the following
-# This is a project Makefile. It is assumed the directory this Makefile resides in is a
+#export PROJECT_BUILD_NAME="${build_version_prefix}${BUILD_NUMBER}"
-# project subdirectory.
+#export PROJECT_BUILD_TARGET="${config_target}"
-#
+
+PROJECT_BUILD_NAME?=local
+PROJECT_CONFIG_TARGET?=custom
+PROJECT_NAME?=squeezelite.$(PROJECT_CONFIG_TARGET)
+PROJECT_VER?="$(PROJECT_BUILD_NAME)-$(PROJECT_CONFIG_TARGET)"
+RECOVERY_APPLICATION?=0
+CFLAGS?=
+
+	
 
-PROJECT_NAME := squeezelite
 include $(IDF_PATH)/make/project.mk 

Makefile_std.mk

@@ -0,0 +1,2 @@
+PROJECT_NAME?= squeezelite
+include $(IDF_PATH)/make/project.mk

components/squeezelite-ota/cmd_ota.c

@@ -0,0 +1,50 @@
+/* Console example — various system commands
+
+   This example code is in the Public Domain (or CC0 licensed, at your option.)
+
+   Unless required by applicable law or agreed to in writing, this
+   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+   CONDITIONS OF ANY KIND, either express or implied.
+*/
+
+#include "../squeezelite-ota/cmd_ota.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+#include "esp_log.h"
+#include "esp_console.h"
+#include "esp_system.h"
+#include "esp_sleep.h"
+#include "esp_spi_flash.h"
+#include "driver/rtc_io.h"
+#include "driver/uart.h"
+#include "argtable3/argtable3.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "soc/rtc_cntl_reg.h"
+#include "esp32/rom/uart.h"
+#include "sdkconfig.h"
+
+static const char * TAG = "platform_esp32";
+
+/* 'heap' command prints minumum heap size */
+static int perform_ota_update(int argc, char **argv)
+{
+
+    return 0;
+}
+
+static void register_ota_cmd()
+{
+    const esp_console_cmd_t cmd = {
+        .command = "ota_update",
+        .help = "Updates the application binary from the provided URL",
+        .hint = NULL,
+        .func = &perform_ota_update,
+    };
+    ESP_ERROR_CHECK( esp_console_cmd_register(&cmd) );
+}
+
+
+

components/squeezelite-ota/cmd_ota.h

@@ -0,0 +1,19 @@
+/* Console example — various system commands
+
+   This example code is in the Public Domain (or CC0 licensed, at your option.)
+
+   Unless required by applicable law or agreed to in writing, this
+   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+   CONDITIONS OF ANY KIND, either express or implied.
+*/
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// Register system functions
+static void register_ota_cmd();
+#ifdef __cplusplus
+}
+#endif

components/squeezelite-ota/component.mk

@@ -0,0 +1,9 @@
+#
+# "main" pseudo-component makefile.
+#
+# (Uses default behaviour of compiling all source files in directory, adding 'include' to include path.)
+
+# todo: add support for https
+COMPONENT_ADD_INCLUDEDIRS := .
+CFLAGS += -D LOG_LOCAL_LEVEL=ESP_LOG_DEBUG -D CONFIG_OTA_ALLOW_HTTP=1
+#COMPONENT_EMBED_TXTFILES :=  ${PROJECT_PATH}/server_certs/ca_cert.pem

components/squeezelite-ota/protocol_examples_common.h

@@ -0,0 +1,59 @@
+/* Common functions for protocol examples, to establish Wi-Fi or Ethernet connection.
+
+   This example code is in the Public Domain (or CC0 licensed, at your option.)
+
+   Unless required by applicable law or agreed to in writing, this
+   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+   CONDITIONS OF ANY KIND, either express or implied.
+ */
+
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "esp_err.h"
+#include "tcpip_adapter.h"
+
+#ifdef CONFIG_EXAMPLE_CONNECT_ETHERNET
+#define EXAMPLE_INTERFACE TCPIP_ADAPTER_IF_ETH
+#endif
+
+#ifdef CONFIG_EXAMPLE_CONNECT_WIFI
+#define EXAMPLE_INTERFACE TCPIP_ADAPTER_IF_STA
+#endif
+
+/**
+ * @brief Configure Wi-Fi or Ethernet, connect, wait for IP
+ *
+ * This all-in-one helper function is used in protocols examples to
+ * reduce the amount of boilerplate in the example.
+ *
+ * It is not intended to be used in real world applications.
+ * See examples under examples/wifi/getting_started/ and examples/ethernet/
+ * for more complete Wi-Fi or Ethernet initialization code.
+ *
+ * Read "Establishing Wi-Fi or Ethernet Connection" section in
+ * examples/protocols/README.md for more information about this function.
+ *
+ * @return ESP_OK on successful connection
+ */
+esp_err_t example_connect();
+
+/**
+ * Counterpart to example_connect, de-initializes Wi-Fi or Ethernet
+ */
+esp_err_t example_disconnect();
+
+/**
+ * @brief Configure stdin and stdout to use blocking I/O
+ *
+ * This helper function is used in ASIO examples. It wraps installing the
+ * UART driver and configuring VFS layer to use UART driver for console I/O.
+ */
+esp_err_t example_configure_stdin_stdout();
+
+#ifdef __cplusplus
+}
+#endif

components/squeezelite-ota/squeezelite-ota.c

@@ -0,0 +1,107 @@
+/* OTA example
+
+   This example code is in the Public Domain (or CC0 licensed, at your option.)
+
+   Unless required by applicable law or agreed to in writing, this
+   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+   CONDITIONS OF ANY KIND, either express or implied.
+*/
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "esp_system.h"
+#include "esp_event.h"
+#include "esp_log.h"
+#include "esp_ota_ops.h"
+#include "esp_http_client.h"
+#include "esp_https_ota.h"
+#include "string.h"
+#include <stdbool.h>
+#include "nvs.h"
+#include "nvs_flash.h"
+
+#include "esp_err.h"
+#include "tcpip_adapter.h"
+
+
+static const char *TAG = "simple_ota_example";
+extern const uint8_t server_cert_pem_start[] asm("_binary_ca_cert_pem_start");
+extern const uint8_t server_cert_pem_end[] asm("_binary_ca_cert_pem_end");
+
+#define OTA_URL_SIZE 256
+static char ota_status[31]={0};
+static uint8_t ota_pct=0;
+const char * ota_get_status(){
+	return ota_status;
+}
+uint8_t ota_get_pct_complete(){
+	return ota_pct;
+}
+esp_err_t _http_event_handler(esp_http_client_event_t *evt)
+{
+    switch (evt->event_id) {
+    case HTTP_EVENT_ERROR:
+        ESP_LOGD(TAG, "HTTP_EVENT_ERROR");
+        break;
+    case HTTP_EVENT_ON_CONNECTED:
+        ESP_LOGD(TAG, "HTTP_EVENT_ON_CONNECTED");
+        break;
+    case HTTP_EVENT_HEADER_SENT:
+        ESP_LOGD(TAG, "HTTP_EVENT_HEADER_SENT");
+        break;
+    case HTTP_EVENT_ON_HEADER:
+        ESP_LOGD(TAG, "HTTP_EVENT_ON_HEADER, key=%s, value=%s", evt->header_key, evt->header_value);
+        break;
+    case HTTP_EVENT_ON_DATA:
+        ESP_LOGD(TAG, "HTTP_EVENT_ON_DATA, len=%d", evt->data_len);
+        break;
+    case HTTP_EVENT_ON_FINISH:
+        ESP_LOGD(TAG, "HTTP_EVENT_ON_FINISH");
+        break;
+    case HTTP_EVENT_DISCONNECTED:
+        ESP_LOGD(TAG, "HTTP_EVENT_DISCONNECTED");
+        break;
+    }
+    return ESP_OK;
+}
+
+void ota_task(void *pvParameter, const char * bin_url)
+{
+    ESP_LOGI(TAG, "Starting OTA example");
+
+    esp_http_client_config_t config = {
+        .url = bin_url,
+        .cert_pem = (char *)server_cert_pem_start,
+        .event_handler = _http_event_handler,
+    };
+
+    // todo: review how certificates work
+    config.skip_cert_common_name_check = true;
+
+    esp_err_t ret = esp_https_ota(&config);
+    if (ret == ESP_OK) {
+        esp_restart();
+    } else {
+        ESP_LOGE(TAG, "Firmware upgrade failed");
+    }
+    while (1) {
+        vTaskDelay(1000 / portTICK_PERIOD_MS);
+    }
+}
+
+void start_ota(const char * bin_url)
+{
+    // Initialize NVS.
+    esp_err_t err = nvs_flash_init();
+    if (err == ESP_ERR_NVS_NO_FREE_PAGES || err == ESP_ERR_NVS_NEW_VERSION_FOUND) {
+    	// todo: If we ever change the size of the nvs partition, we need to figure out a mechanism to enlarge the nvs.
+        // 1.OTA app partition table has a smaller NVS partition size than the non-OTA
+        // partition table. This size mismatch may cause NVS initialization to fail.
+        // 2.NVS partition contains data in new format and cannot be recognized by this version of code.
+        // If this happens, we erase NVS partition and initialize NVS again.
+        ESP_ERROR_CHECK(nvs_flash_erase());
+        err = nvs_flash_init();
+    }
+    ESP_ERROR_CHECK(err);
+
+    xTaskCreate(&ota_task, "ota_task", 8192, NULL, 5, NULL);
+}

components/wifi-manager/http_server.c

@@ -45,10 +45,6 @@ static const char array_separator[]=",";
 /* @brief task handle for the http server */
 static TaskHandle_t task_http_server = NULL;
 
-#ifndef CONFIG_IS_RECOVERY_MODE
-#define CONFIG_IS_RECOVERY_MODE 0
-#endif
-
 /**
  * @brief embedded binary data.
  * @see file "component.mk"
@@ -225,7 +221,7 @@ void http_server_netconn_serve(struct netconn *conn) {
 						netconn_write(conn, http_ok_json_no_cache_hdr, sizeof(http_ok_json_no_cache_hdr) - 1, NETCONN_NOCOPY);
 
 						autoexec_flag = wifi_manager_get_flag();
-						snprintf(buff,buflen-1, json_start, CONFIG_IS_RECOVERY_MODE, autoexec_flag);
+						snprintf(buff,buflen-1, json_start, RECOVERY_APPLICATION, autoexec_flag);
 						netconn_write(conn, buff, strlen(buff), NETCONN_NOCOPY);
 						do {
 							snprintf(autoexec_name,sizeof(autoexec_name)-1,"autoexec%u",i);

components/wifi-manager/wifi_manager.c

@@ -55,14 +55,14 @@ Contains the freeRTOS task and all necessary support
 #include "lwip/netdb.h"
 #include "lwip/ip4_addr.h"
 
-#ifndef SQUEEZELITE_ESP32_BASE_RELEASE
+
-#define SQUEEZELITE_ESP32_BASE_RELEASE "unknown"
-#endif
 #ifndef SQUEEZELITE_ESP32_RELEASE_URL
 #define SQUEEZELITE_ESP32_RELEASE_URL "https://github.com/sle118/squeezelite-esp32/releases"
 #endif
-
+#if RECOVERY_APPLICATION
-
+extern const char * ota_get_status();
+extern uint8_t ota_get_pct_complete();
+#endif
 /* objects used to manipulate the main queue of events */
 QueueHandle_t wifi_manager_queue;
 
@@ -406,9 +406,11 @@ void wifi_manager_clear_ip_info_json(){
 void wifi_manager_generate_ip_info_json(update_reason_code_t update_reason_code){
 	wifi_config_t *config = wifi_manager_get_wifi_sta_config();
 	if(config){
-
+#if !RECOVERY_APPLICATION
 		const char ip_info_json_format[] = ",\"ip\":\"%s\",\"netmask\":\"%s\",\"gw\":\"%s\",\"urc\":%d}\n";
-
+#else
+		const char ip_info_json_format[] = ",\"ip\":\"%s\",\"netmask\":\"%s\",\"gw\":\"%s\",\"urc\":%d, \"ota_dsc\":\"%s\", \"ota_pct\":%d}\n";
+#endif
 		memset(ip_info_json, 0x00, JSON_IP_INFO_SIZE);
 
 
@@ -431,7 +433,12 @@ void wifi_manager_generate_ip_info_json(update_reason_code_t update_reason_code)
 					ip,
 					netmask,
 					gw,
-					(int)update_reason_code);
+					(int)update_reason_code
+#if RECOVERY_APPLICATION
+					,ota_get_status(),
+					 ota_get_pct_complete()
+#endif
+			);
 		}
 		else{
 			/* notify in the json output the reason code why this was updated without a connection */
@@ -439,7 +446,12 @@ void wifi_manager_generate_ip_info_json(update_reason_code_t update_reason_code)
 								"0",
 								"0",
 								"0",
-								(int)update_reason_code);
+								(int)update_reason_code
+#if RECOVERY_APPLICATION
+					,"",
+					0
+#endif
+);
 		}
 	}
 	else{

components/wifi-manager/wifi_manager.h

@@ -40,6 +40,13 @@ extern "C" {
 #include "esp_wifi.h"
 #include "esp_wifi_types.h"
 
+#ifndef RECOVERY_APPLICATION
+#define RECOVERY_APPLICATION 0
+#else
+#undef RECOVERY_APPLICATION
+#define RECOVERY_APPLICATION 1
+#endif
+
 
 #define DEFAULT_COMMAND_LINE  CONFIG_DEFAULT_COMMAND_LINE
 
@@ -163,10 +170,14 @@ extern "C" {
 /**
  * @brief Defines the maximum length in bytes of a JSON representation of the IP information
  * assuming all ips are 4*3 digits, and all characters in the ssid require to be escaped.
- * example: {"ssid":"abcdefghijklmnopqrstuvwxyz012345","ip":"192.168.1.119","netmask":"255.255.255.0","gw":"192.168.1.1","urc":0}
+ * example: {"ssid":"abcdefghijklmnopqrstuvwxyz012345","ip":"192.168.1.119","netmask":"255.255.255.0","gw":"192.168.1.1","urc":0, "ota_dsc":"Installing...", "ota_pct":100}
  */
+#if RECOVERY_APPLICATION
+// recovery has more resources available. Let's use them to include more details about the OTA process
+#define JSON_IP_INFO_SIZE 					150+255
+#else
 #define JSON_IP_INFO_SIZE 					150
-
+#endif
 
 
 /**

main/CMakeLists.txt

@@ -2,7 +2,7 @@ set(COMPONENT_ADD_INCLUDEDIRS . )
 
 set(COMPONENT_SRCS "esp_app_main.c" "platform_esp32.c" "cmd_wifi.c" "console.c" "nvs_utilities.c" "cmd_squeezelite.c")
 set(REQUIRES esp_common)
-set(REQUIRES_COMPONENTS freertos squeezelite nvs_flash esp32 spi_flash newlib log console )
+set(REQUIRES_COMPONENTS freertos squeezelite nvs_flash esp32 spi_flash newlib log console ota )
 
 
 register_component()

main/cmd_decl.h

@@ -16,7 +16,7 @@ extern "C" {
 #include "cmd_wifi.h"
 #include "cmd_nvs.h"
 #include "cmd_i2ctools.h"
-
+#include "cmd_ota.h"
 #ifdef __cplusplus
 }
 #endif

main/console.c

@@ -33,6 +33,11 @@ static void * console_thread();
 void console_start();
 static const char * TAG = "console";
 
+#if (RECOVERY_APPLICATION )
+extern void start_ota(const char * bin_url);
+#endif
+
+
 /* Prompt to be printed before each line.
  * This can be customized, made dynamic, etc.
  */
@@ -235,7 +240,13 @@ void console_start() {
 	esp_console_register_help_command();
 	register_system();
 	register_nvs();
+#if !RECOVERY_APPLICATION
+#pragma message "compiling for squeezelite""
 	register_squeezelite();
+#else
+#pragma message "compiling for recovery"
+	register_ota_cmd();
+#endif
 	register_i2ctools();
 	printf("\n"
 			"Type 'help' to get the list of commands.\n"

main/esp_app_main.c

@@ -80,10 +80,7 @@ bool wait_for_wifi(){
 	    	ESP_LOGI(TAG,"WiFi Connected!");
 	    }
 	}
-
-
     return connected;
-
 }
 
 void app_main()

main/platform_esp32.h

@@ -28,3 +28,10 @@ extern bool wait_for_wifi();
 extern void console_start();
 extern pthread_cond_t wifi_connect_suspend_cond;
 extern pthread_t wifi_connect_suspend_mutex;
+
+#ifndef RECOVERY_APPLICATION
+#define RECOVERY_APPLICATION 0
+#else
+#undef RECOVERY_APPLICATION
+#define RECOVERY_APPLICATION 1
+#endif

partitions.csv

@@ -1,7 +1,7 @@
 # Name,   Type, SubType, Offset,  Size, Flags
 # Note: if you change the phy_init or app partition offset, make sure to change the offset in Kconfig.projbuild
-nvs,      data, nvs,     0x9000,  0x6000,
+nvs,  data,  nvs,  0x9000,  0x4000,
-phy_init, data, phy,     0xf000,  0x1000,
+otadata,  data,  ota,  0xD000,  0x2000,
-factory,  app,  factory, 0x10000, 3M,
+phy_init,  data,  phy,  0xF000,  0x1000,
-storage,  data, fat,     ,        819200, 
+recovery,  app,  factory,  0x10000,  0x100000,
-coredump, data, coredump,,        64K
+ota_0,  app,  ota_0,  0x110000,  0x2F0000,