RPC: Add RPCs to ota-requester app on ESP32

- Add RPC target to the esp32 requester example.
- Implement TriggerOta rpc which triggers the OTA request from
the provider.

examples/common/pigweed/rpc_services/Device.h

@@ -21,6 +21,7 @@
 #include <platform/CHIPDeviceConfig.h>
 #include <platform/CommissionableDataProvider.h>
 
+#include "app/clusters/ota-requestor/OTARequestorInterface.h"
 #include "app/server/OnboardingCodesUtil.h"
 #include "app/server/Server.h"
 #include "credentials/FabricTable.h"
@@ -51,8 +52,20 @@ class Device : public pw_rpc::nanopb::Device::Service<Device>
 
     virtual pw::Status TriggerOta(const pw_protobuf_Empty & request, pw_protobuf_Empty & response)
     {
-        // TODO: auto err = DeviceLayer::SoftwareUpdateMgr().CheckNow();
-        return pw::Status::Unimplemented();
+        chip::DeviceLayer::PlatformMgr().ScheduleWork(
+            [](intptr_t) {
+                chip::OTARequestorInterface * requestor = chip::GetRequestorInstance();
+                if (requestor == nullptr)
+                {
+                    ChipLogError(SoftwareUpdate, "Can't get the CASESessionManager");
+                }
+                else
+                {
+                    requestor->TriggerImmediateQuery();
+                }
+            },
+            reinterpret_cast<intptr_t>(nullptr));
+        return pw::OkStatus();
     }
 
     virtual pw::Status SetPairingState(const chip_rpc_PairingState & request, pw_protobuf_Empty & response)

examples/ota-requestor-app/esp32/CMakeLists.txt

@@ -27,7 +27,8 @@ set(EXTRA_COMPONENT_DIRS
 )
 
 project(chip-ota-requestor-app)
-idf_build_set_property(CXX_COMPILE_OPTIONS "-std=gnu++14;-Os;-DLWIP_IPV6_SCOPES=0;-DCHIP_HAVE_CONFIG_H" APPEND)
+# C++17 is required for RPC build.
+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)
 # For the C3, project_include.cmake sets -Wno-format, but does not clear various
 # flags that depend on -Wformat
@@ -39,4 +40,22 @@ idf_build_set_property(COMPILE_OPTIONS "-Wno-format-nonliteral;-Wno-format-secur
 # See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80635
 idf_build_set_property(COMPILE_OPTIONS "-Wno-error=maybe-uninitialized" APPEND)
 
+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)
+
+
 flashing_script()

examples/ota-requestor-app/esp32/README.md

@@ -78,3 +78,30 @@ config options for setting software version.
 Matter OTA image can also be generated using
 [ota_image_tool.py](https://github.com/project-chip/connectedhomeip/blob/master/src/app/ota_image_tool.py)
 script.
+
+## 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
+
+```
+    chip-console --device /dev/ttyUSB0
+```
+
+-   From within the console you can then invoke rpcs:
+
+```
+    rpcs.chip.rpc.Device.TriggerOta()
+```

examples/ota-requestor-app/esp32/main/CMakeLists.txt

@@ -16,12 +16,14 @@
 #
 #
 # (Uses default behaviour of compiling all source files in directory, adding 'include' to include path.)
-idf_component_register(PRIV_INCLUDE_DIRS 
+set(PRIV_INCLUDE_DIRS_LIST
                       "${CMAKE_CURRENT_LIST_DIR}/include"
                       "${CMAKE_SOURCE_DIR}/third_party/connectedhomeip/src"
                       "${CMAKE_SOURCE_DIR}/third_party/connectedhomeip/zzz_generated/ota-requestor-app/"
                       "${CMAKE_SOURCE_DIR}/third_party/connectedhomeip/examples/platform/esp32"
-		      SRC_DIRS
+)
+
+set(SRC_DIRS_LIST
                       "${CMAKE_CURRENT_LIST_DIR}"
                       "${CMAKE_SOURCE_DIR}/third_party/connectedhomeip/zzz_generated/ota-requestor-app/zap-generated"
                       "${CMAKE_SOURCE_DIR}/third_party/connectedhomeip/zzz_generated/app-common/app-common/zap-generated/attributes"
@@ -53,10 +55,135 @@ idf_component_register(PRIV_INCLUDE_DIRS
                       "${CMAKE_SOURCE_DIR}/third_party/connectedhomeip/examples/platform/esp32/ota"
                       "${CMAKE_SOURCE_DIR}/third_party/connectedhomeip/examples/platform/esp32/route_hook"
                       "${CMAKE_SOURCE_DIR}/third_party/connectedhomeip/examples/platform/esp32/common"
-		      PRIV_REQUIRES chip QRCode bt console app_update)
+)
+
+set(PRIV_REQUIRES_LIST chip QRCode bt console app_update)
+
+if (CONFIG_ENABLE_PW_RPC)
+# Append additional directories for RPC build
+set(PRIV_INCLUDE_DIRS_LIST  "${PRIV_INCLUDE_DIRS_LIST}"
+                     "${CMAKE_SOURCE_DIR}/third_party/connectedhomeip/examples/platform/esp32/pw_sys_io/public"
+                     "${CMAKE_SOURCE_DIR}/third_party/connectedhomeip/examples/common"
+                     "${CMAKE_SOURCE_DIR}/third_party/connectedhomeip/examples/common/pigweed"
+                     "${CMAKE_SOURCE_DIR}/third_party/connectedhomeip/examples/common/pigweed/esp32"
+                     "${CMAKE_SOURCE_DIR}/third_party/connectedhomeip/src/lib/support"
+                     "${IDF_PATH}/components/freertos/include/freertos"
+)
+set(SRC_DIRS_LIST  "${SRC_DIRS_LIST}"
+                     "${CMAKE_SOURCE_DIR}/third_party/connectedhomeip/examples/platform/esp32"
+                     "${CMAKE_SOURCE_DIR}/third_party/connectedhomeip/examples/common/pigweed"
+                     "${CMAKE_SOURCE_DIR}/third_party/connectedhomeip/examples/common/pigweed/esp32"
+)
+endif (CONFIG_ENABLE_PW_RPC)
 
-set_property(TARGET ${COMPONENT_LIB} PROPERTY CXX_STANDARD 14)
+idf_component_register(PRIV_INCLUDE_DIRS ${PRIV_INCLUDE_DIRS_LIST}
+                       SRC_DIRS ${SRC_DIRS_LIST}
+                       PRIV_REQUIRES ${PRIV_REQUIRES_LIST})
+
+set_property(TARGET ${COMPONENT_LIB} PROPERTY CXX_STANDARD 17)
 target_compile_options(${COMPONENT_LIB} PRIVATE "-DLWIP_IPV6_SCOPES=0" "-DCHIP_HAVE_CONFIG_H")
 target_compile_options(${COMPONENT_LIB} PUBLIC
            "-DCHIP_ADDRESS_RESOLVE_IMPL_INCLUDE_HEADER=<lib/address_resolve/AddressResolve_DefaultImpl.h>"
 )
+
+if (CONFIG_ENABLE_PW_RPC)
+
+get_filename_component(CHIP_ROOT ${CMAKE_SOURCE_DIR}/third_party/connectedhomeip REALPATH)
+
+set(PIGWEED_ROOT "${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(attributes_service
+  SOURCES
+    ${CHIP_ROOT}/examples/common/pigweed/protos/attributes_service.proto
+  INPUTS
+    ${CHIP_ROOT}/examples/common/pigweed/protos/attributes_service.options
+  PREFIX
+    attributes_service
+  STRIP_PREFIX
+    ${CHIP_ROOT}/examples/common/pigweed/protos
+  DEPS
+    pw_protobuf.common_protos
+)
+
+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(descriptor_service
+  SOURCES
+    ${CHIP_ROOT}/examples/common/pigweed/protos/descriptor_service.proto
+  PREFIX
+    descriptor_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/common/pigweed/protos/wifi_service.proto
+  INPUTS
+    ${CHIP_ROOT}/examples/common/pigweed/protos/wifi_service.options
+  PREFIX
+    wifi_service
+  DEPS
+    pw_protobuf.common_protos
+  STRIP_PREFIX
+    ${CHIP_ROOT}/examples/common/pigweed/protos
+)
+
+target_link_libraries(${COMPONENT_LIB} PUBLIC
+  attributes_service.nanopb_rpc
+  button_service.nanopb_rpc
+  descriptor_service.nanopb_rpc
+  device_service.nanopb_rpc
+  wifi_service.nanopb_rpc
+  pw_checksum
+  pw_hdlc
+  pw_log
+  pw_rpc.server
+  pw_trace_tokenized
+  pw_trace_tokenized.trace_buffer
+  pw_trace_tokenized.rpc_service
+  pw_trace_tokenized.protos.nanopb_rpc
+)
+
+target_link_options(${COMPONENT_LIB}
+  PUBLIC
+    "-T${PIGWEED_ROOT}/pw_tokenizer/pw_tokenizer_linker_sections.ld"
+)
+
+target_compile_options(${COMPONENT_LIB} PRIVATE
+                       "-DPW_RPC_ATTRIBUTE_SERVICE=1"
+                       "-DPW_RPC_BUTTON_SERVICE=1"
+                       "-DPW_RPC_DESCRIPTOR_SERVICE=1"
+                       "-DPW_RPC_DEVICE_SERVICE=1"
+                       "-DPW_RPC_TRACING_SERVICE=1"
+                       "-DPW_RPC_WIFI_SERVICE=1"
+                       "-DPW_TRACE_BACKEND_SET=1")
+
+endif (CONFIG_ENABLE_PW_RPC)

examples/ota-requestor-app/esp32/main/Kconfig.projbuild

@@ -45,3 +45,41 @@ menu "Demo"
        default 8 if RENDEZVOUS_MODE_ETHERNET
 
 endmenu
+
+menu "PW RPC Debug channel"
+depends on ENABLE_PW_RPC
+    config EXAMPLE_UART_PORT_NUM
+        int "UART port number"
+        range 0 2 if IDF_TARGET_ESP32
+        range 0 1 if IDF_TARGET_ESP32C3
+        default 0
+        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
+        range 0 19 if IDF_TARGET_ESP32C3
+        default 5
+        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
+        range 0 19 if IDF_TARGET_ESP32C3
+        default 4
+        help
+            GPIO number for UART TX pin. See UART documentation for more information
+            about available pin numbers for UART.
+
+endmenu

examples/ota-requestor-app/esp32/main/main.cpp

@@ -32,6 +32,12 @@
 
 #include <lib/support/ErrorStr.h>
 
+#include "OTAImageProcessorImpl.h"
+
+#if CONFIG_ENABLE_PW_RPC
+#include "Rpc.h"
+#endif
+
 using namespace ::chip;
 using namespace ::chip::System;
 using namespace ::chip::DeviceManager;
@@ -49,6 +55,10 @@ static void InitServer(intptr_t context)
 
 extern "C" void app_main()
 {
+#if CONFIG_ENABLE_PW_RPC
+    chip::rpc::Init();
+#endif
+
     ESP_LOGI(TAG, "OTA Requester!");
 
     /* Print chip information */

examples/ota-requestor-app/esp32/sdkconfig_rpc.defaults

@@ -0,0 +1,65 @@
+#
+#    Copyright (c) 2020 Project CHIP Authors
+#    Copyright (c) 2018 Nest Labs, Inc.
+#    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.
+#
+#    Description:
+#      Some useful defaults for the demo app configuration.
+#
+
+
+# Default to 921600 baud when flashing and monitoring device
+CONFIG_ESPTOOLPY_BAUD_921600B=y
+CONFIG_ESPTOOLPY_BAUD=921600
+CONFIG_ESPTOOLPY_COMPRESSED=y
+CONFIG_ESPTOOLPY_MONITOR_BAUD_115200B=y
+CONFIG_ESPTOOLPY_MONITOR_BAUD=115200
+
+#enable BT
+CONFIG_BT_ENABLED=y
+CONFIG_BT_NIMBLE_ENABLED=y
+
+#enable lwip ipv6 autoconfig
+CONFIG_LWIP_IPV6_AUTOCONFIG=y
+
+# Use a custom partition table
+CONFIG_PARTITION_TABLE_CUSTOM=y
+CONFIG_PARTITION_TABLE_FILENAME="partitions.csv"
+
+# Add RTC memory to system heap
+CONFIG_ESP_SYSTEM_ALLOW_RTC_FAST_MEM_AS_HEAP=y
+
+# Product id
+CONFIG_DEVICE_VENDOR_ID=0xFFF1
+CONFIG_DEVICE_PRODUCT_ID=0x8008
+
+# Main task needs a bit more stack than the default
+# default is 3584, bump this up to 4k.
+CONFIG_ESP_MAIN_TASK_STACK_SIZE=4096
+
+# Serial Flasher config
+CONFIG_ESPTOOLPY_FLASHSIZE_4MB=y
+CONFIG_ESPTOOLPY_FLASHSIZE="4MB"
+
+# Enable OTA Requestor
+CONFIG_ENABLE_OTA_REQUESTOR=y
+CONFIG_DEVICE_SOFTWARE_VERSION_NUMBER=2
+
+# PW RPC Debug channel
+CONFIG_EXAMPLE_UART_PORT_NUM=0
+CONFIG_EXAMPLE_UART_BAUD_RATE=115200
+CONFIG_EXAMPLE_UART_RXD=3
+CONFIG_EXAMPLE_UART_TXD=1
+CONFIG_ENABLE_PW_RPC=y

scripts/build/build/targets.py

@@ -331,6 +331,8 @@ def Esp32Targets():
     yield devkitc.Extend('bridge', app=Esp32App.BRIDGE)
     yield devkitc.Extend('temperature-measurement', app=Esp32App.TEMPERATURE_MEASUREMENT)
     yield devkitc.Extend('temperature-measurement-rpc', app=Esp32App.TEMPERATURE_MEASUREMENT, enable_rpcs=True)
+    yield devkitc.Extend('ota-requestor', app=Esp32App.OTA_REQUESTOR)
+    yield devkitc.Extend('ota-requestor-rpc', app=Esp32App.OTA_REQUESTOR, enable_rpcs=True)
 
     yield esp32_target.Extend('qemu-tests', board=Esp32Board.QEMU, app=Esp32App.TESTS)