From 290197c210415a7296f649245ca7f6668a802d94 Mon Sep 17 00:00:00 2001
From: Jonathan Dreyer <jonathan.dreyer@cleanenergie.ch>
Date: Tue, 14 Jun 2022 23:22:06 +0200
Subject: [PATCH] feat(esp-modem): Add exit PPP in example

---
 .../examples/simple_cmux_client/main/Kconfig.projbuild |  6 ++++++
 .../main/simple_cmux_client_main.cpp                   | 10 ++++++++++
 2 files changed, 16 insertions(+)

diff --git a/components/esp_modem/examples/simple_cmux_client/main/Kconfig.projbuild b/components/esp_modem/examples/simple_cmux_client/main/Kconfig.projbuild
index 2933fe830..ed9e96989 100644
--- a/components/esp_modem/examples/simple_cmux_client/main/Kconfig.projbuild
+++ b/components/esp_modem/examples/simple_cmux_client/main/Kconfig.projbuild
@@ -61,4 +61,10 @@ menu "Example Configuration"
         help
             HTTPS address of the update binary.
 
+    config EXAMPLE_CLOSE_CMUX_AT_END
+        bool "Close multiplexed mode at the end of the example"
+        default n
+        help
+            Close the multiplexed mode at the end of the example and rollback to command mode.
+
 endmenu
diff --git a/components/esp_modem/examples/simple_cmux_client/main/simple_cmux_client_main.cpp b/components/esp_modem/examples/simple_cmux_client/main/simple_cmux_client_main.cpp
index 31a89b764..62da2fee9 100644
--- a/components/esp_modem/examples/simple_cmux_client/main/simple_cmux_client_main.cpp
+++ b/components/esp_modem/examples/simple_cmux_client/main/simple_cmux_client_main.cpp
@@ -164,4 +164,14 @@ extern "C" void app_main(void)
         return;
     }
 #endif // CONFIG_EXAMPLE_PERFORM_OTA
+
+    /* Close multiplexed command/data mode */
+#if CONFIG_EXAMPLE_CLOSE_CMUX_AT_END == 1
+    if (dce->set_mode(esp_modem::modem_mode::COMMAND_MODE)) {
+        std::cout << "Modem has correctly entered command mode" << std::endl;
+    } else {
+        ESP_LOGE(TAG, "Failed to configure desired mode... exiting");
+        return;
+    }
+#endif
 }