Add wifi RPCs to ESP32 all-clusters app

Add the ability to optionally include the RPCs into the all-clusters
app for ESP32. This includes the services for Button, Device, and
Wifi.

examples/all-clusters-app/esp32/CMakeLists.txt

@@ -33,7 +33,24 @@ elseif(${IDF_TARGET} STREQUAL "esp32c3")
 endif()
 
 project(chip-all-clusters-app)
-idf_build_set_property(CXX_COMPILE_OPTIONS "-std=gnu++14;-Os;-DLWIP_IPV6_SCOPES=0;-DCHIP_HAVE_CONFIG_H" APPEND)
+idf_build_set_property(CXX_COMPILE_OPTIONS "-std=gnu++17;-Os;-DLWIP_IPV6_SCOPES=0;-DCHIP_HAVE_CONFIG_H" APPEND)
 idf_build_set_property(C_COMPILE_OPTIONS "-Os;-DLWIP_IPV6_SCOPES=0" APPEND)
 
 flashing_script()
+
+if (CONFIG_ENABLE_PW_RPC)
+get_filename_component(CHIP_ROOT ./third_party/connectedhomeip REALPATH)
+include(third_party/connectedhomeip/third_party/pigweed/repo/pw_build/pigweed.cmake)
+pw_set_backend(pw_log pw_log_basic)
+pw_set_backend(pw_assert pw_assert_log)
+pw_set_backend(pw_sys_io pw_sys_io.esp32)
+
+add_subdirectory(third_party/connectedhomeip/third_party/pigweed/repo)
+add_subdirectory(third_party/connectedhomeip/third_party/nanopb/repo)
+add_subdirectory(third_party/connectedhomeip/examples/platform/esp32/pw_sys_io)
+
+get_target_property(_target_cxx_flags pw_build.cpp17 INTERFACE_COMPILE_OPTIONS)
+list(REMOVE_ITEM _target_cxx_flags $<$<COMPILE_LANGUAGE:CXX>:-std=c++17>)
+list(APPEND _target_cxx_flags $<$<COMPILE_LANGUAGE:CXX>:-std=gnu++17>)
+set_target_properties(pw_build.cpp17 PROPERTIES INTERFACE_COMPILE_OPTIONS "${_target_cxx_flags}")
+endif(CONFIG_ENABLE_PW_RPC)

examples/all-clusters-app/esp32/README.md

@@ -257,3 +257,27 @@ If you wish to see the actual effect of the commands on `ESP32-DevKitC`,
 `ESP32-WROVER-KIT_V4.1`, you will have to connect an external LED to GPIO
 `STATUS_LED_GPIO_NUM`. For `ESP32C3-DevKitM`, the on-board LED will show the
 actual effect of the commands.
+
+## Using the RPC console
+
+Enable RPCs in the build using menuconfig:
+
+    $ idf.py menuconfig
+
+Enable the RPC library:
+
+    Component config → CHIP Core → General Options → Enable Pigweed PRC library
+
+After flashing a build with RPCs enabled you can use the rpc console to send
+commands to the device.
+
+Build or install the [rpc console](../../common/pigweed/rpc_console/README.md)
+
+Start the console
+
+    python -m chip_rpc.console --device /dev/ttyUSB0
+
+From within the console you can then invoke rpcs:
+
+    rpcs.chip.rpc.Wifi.Connect(ssid=b"MySSID", secret=b"MyPASSWORD")
+    rpcs.chip.rpc.Wifi.GetIP6Address()

examples/all-clusters-app/esp32/main/CMakeLists.txt

@@ -73,6 +73,22 @@ set(SRC_DIRS_LIST
                       #${CMAKE_SOURCE_DIR}/third_party/connectedhomeip/src/app/clusters/ias-zone-client
 )
 
+if (CONFIG_ENABLE_PW_RPC)
+# Append additional directories for RPC build
+set(PRIV_INCLUDE_DIRS_LIST  "${PRIV_INCLUDE_DIRS_LIST}"
+                     "${CMAKE_SOURCE_DIR}/../../platform/esp32/pw_sys_io/public"
+                     "${CMAKE_SOURCE_DIR}/../../common/pigweed"
+                     "${CMAKE_SOURCE_DIR}/../../common/pigweed/esp32"
+                     "${CMAKE_SOURCE_DIR}/../../../src/lib/support"
+                     "${IDF_PATH}/components/freertos/include/freertos"
+)
+set(SRC_DIRS_LIST  "${SRC_DIRS_LIST}"
+                     "${CMAKE_SOURCE_DIR}/../../platform/esp32"
+                     "${CMAKE_SOURCE_DIR}/../../common/pigweed"
+                     "${CMAKE_SOURCE_DIR}/../../common/pigweed/esp32"
+)
+endif (CONFIG_ENABLE_PW_RPC)
+
 if(("${CONFIG_DEVICE_TYPE_ESP32_DEVKITC}" STREQUAL "y") OR ("${CONFIG_DEVICE_TYPE_ESP32_C3_DEVKITM}" STREQUAL "y"))
     list(APPEND PRIV_INCLUDE_DIRS_LIST
                 "${CMAKE_SOURCE_DIR}/third_party/connectedhomeip/examples/common/screen-framework/include")
@@ -89,5 +105,74 @@ idf_component_register(PRIV_INCLUDE_DIRS ${PRIV_INCLUDE_DIRS_LIST}
                        SRC_DIRS ${SRC_DIRS_LIST}
                        PRIV_REQUIRES ${PRIV_REQUIRES_LIST})
 
-set_property(TARGET ${COMPONENT_LIB} PROPERTY CXX_STANDARD 14)
+set_property(TARGET ${COMPONENT_LIB} PROPERTY CXX_STANDARD 17)
 target_compile_options(${COMPONENT_LIB} PRIVATE "-DLWIP_IPV6_SCOPES=0" "-DCHIP_HAVE_CONFIG_H")
+
+if (CONFIG_ENABLE_PW_RPC)
+
+idf_component_get_property(chip_lib chip COMPONENT_LIB)
+
+set(WRAP_FUNCTIONS esp_log_write)
+target_link_libraries(${chip_lib} INTERFACE "-Wl,--wrap=${WRAP_FUNCTIONS}")
+
+get_filename_component(CHIP_ROOT ../third_party/connectedhomeip REALPATH)
+
+set(PIGWEED_ROOT "${CHIP_ROOT}/third_party/pigweed/repo")
+include(${PIGWEED_ROOT}/pw_build/pigweed.cmake)
+include(${PIGWEED_ROOT}/pw_protobuf_compiler/proto.cmake)
+set(dir_pw_third_party_nanopb "${CHIP_ROOT}/third_party/nanopb/repo" CACHE STRING "" FORCE)
+
+pw_proto_library(button_service
+  SOURCES
+    ${CHIP_ROOT}/examples/common/pigweed/protos/button_service.proto
+  PREFIX
+    button_service
+  STRIP_PREFIX
+    ${CHIP_ROOT}/examples/common/pigweed/protos
+  DEPS
+    pw_protobuf.common_protos
+)
+
+pw_proto_library(device_service
+  SOURCES
+    ${CHIP_ROOT}/examples/common/pigweed/protos/device_service.proto
+  INPUTS
+    ${CHIP_ROOT}/examples/common/pigweed/protos/device_service.options
+  PREFIX
+    device_service
+  STRIP_PREFIX
+    ${CHIP_ROOT}/examples/common/pigweed/protos
+  DEPS
+    pw_protobuf.common_protos
+)
+
+pw_proto_library(wifi_service
+  SOURCES
+    ${CHIP_ROOT}/examples/ipv6only-app/common/wifi_service/wifi_service.proto
+  INPUTS
+    ${CHIP_ROOT}/examples/ipv6only-app/common/wifi_service/wifi_service.options
+  PREFIX
+    wifi_service
+  DEPS
+    pw_protobuf.common_protos
+  STRIP_PREFIX
+    ${CHIP_ROOT}/examples/ipv6only-app/common/wifi_service
+)
+
+target_link_libraries(${COMPONENT_LIB} PUBLIC
+  button_service.nanopb_rpc
+  device_service.nanopb_rpc
+  wifi_service.nanopb_rpc
+  pw_checksum
+  pw_hdlc
+  pw_log
+  pw_rpc.server
+)
+
+set_property(TARGET ${chip_lib} APPEND PROPERTY LINK_LIBRARIES ${COMPONENT_LIB})
+target_include_directories(${chip_lib} PUBLIC
+                          "$<TARGET_FILE_DIR:${chip_lib}>/protocol_buffer/gen/third_party/connectedhomeip/third_party/pigweed/repo/pw_rpc/protos.proto_library/nanopb_rpc"
+                          "$<TARGET_FILE_DIR:${chip_lib}>/protocol_buffer/gen/third_party/connectedhomeip/third_party/pigweed/repo/pw_rpc/protos.proto_library/nanopb"
+                          "$<TARGET_FILE_DIR:${chip_lib}>/protocol_buffer/gen/third_party/connectedhomeip/third_party/pigweed/repo/pw_rpc/protos.proto_library/pwpb")
+
+endif (CONFIG_ENABLE_PW_RPC)

examples/all-clusters-app/esp32/main/Kconfig.projbuild

@@ -101,3 +101,37 @@ menu "Demo"
 
 
 endmenu
+
+menu "PW RPC Debug channel"
+    config EXAMPLE_UART_PORT_NUM
+        int "UART port number"
+        range 0 2 if IDF_TARGET_ESP32
+        default 0 if IDF_TARGET_ESP32
+        help
+            UART communication port number for the example.
+            See UART documentation for available port numbers.
+
+    config EXAMPLE_UART_BAUD_RATE
+        int "UART communication speed"
+        range 1200 115200
+        default 115200
+        help
+            UART communication speed for Modbus example.
+
+    config EXAMPLE_UART_RXD
+        int "UART RXD pin number"
+        range 0 34 if IDF_TARGET_ESP32
+        default 3
+        help
+            GPIO number for UART RX pin. See UART documentation for more information
+            about available pin numbers for UART.
+
+    config EXAMPLE_UART_TXD
+        int "UART TXD pin number"
+        range 0 34 if IDF_TARGET_ESP32
+        default 1
+        help
+            GPIO number for UART TX pin. See UART documentation for more information
+            about available pin numbers for UART.
+
+endmenu