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/*
* Copyright (c) 2020-2021 Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
* 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
*
* 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.
*/
#ifndef MESSAGE_HANDLER_H
#define MESSAGE_HANDLER_H
#include "FreeRTOS.h"
#include "queue.h"
#include "semphr.h"
#include "message_queue.hpp"
#include <inference_process.hpp>
#include <mailbox.hpp>
#include <cstddef>
#include <cstdio>
#include <vector>
namespace MessageHandler {
class IncomingMessageHandler {
public:
IncomingMessageHandler(EthosU::ethosu_core_queue &messageQueue,
Mailbox::Mailbox &mailbox,
QueueHandle_t inferenceQueue,
QueueHandle_t outputQueue);
void run();
private:
bool handleMessage();
void queueErrorAndResetQueue(EthosU::ethosu_core_msg_err_type type, const char *message);
static void handleIrq(void *userArg);
MessageQueue::QueueImpl messageQueue;
Mailbox::Mailbox &mailbox;
QueueHandle_t inferenceQueue;
QueueHandle_t outputQueue;
SemaphoreHandle_t semaphore;
};
class InferenceHandler {
public:
InferenceHandler(uint8_t *tensorArena, size_t arenaSize, QueueHandle_t inferenceQueue, QueueHandle_t outputQueue);
void run();
private:
void runInference(EthosU::ethosu_core_inference_req &req, EthosU::ethosu_core_inference_rsp &rsp);
QueueHandle_t inferenceQueue;
QueueHandle_t outputQueue;
InferenceProcess::InferenceProcess inference;
};
struct OutputMessage {
OutputMessage(EthosU::ethosu_core_msg_type _type = EthosU::ETHOSU_CORE_MSG_MAX) : type(_type) {}
EthosU::ethosu_core_msg_type type;
union {
EthosU::ethosu_core_inference_rsp inference;
EthosU::ethosu_core_msg_err error;
uint64_t userArg;
} data;
};
class OutgoingMessageHandler {
public:
OutgoingMessageHandler(EthosU::ethosu_core_queue &messageQueue,
Mailbox::Mailbox &mailbox,
QueueHandle_t outputQueue);
void run();
private:
void sendPong();
void sendErrorRsp(EthosU::ethosu_core_msg_err &error);
void sendVersionRsp();
void sendCapabilitiesRsp(uint64_t userArg);
void sendInferenceRsp(EthosU::ethosu_core_inference_rsp &inference);
void readCapabilties(EthosU::ethosu_core_msg_capabilities_rsp &rsp);
MessageQueue::QueueImpl messageQueue;
Mailbox::Mailbox &mailbox;
QueueHandle_t outputQueue;
EthosU::ethosu_core_msg_capabilities_rsp capabilities;
};
} // namespace MessageHandler
#endif
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