mbed-os/features/FEATURE_UVISOR/includes/uvisor/api/inc/rpc.h

63 lines
2.5 KiB
C

/*
* Copyright (c) 2016, 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
*
* 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.
*/
#ifndef __UVISOR_API_RPC_H__
#define __UVISOR_API_RPC_H__
#include "api/inc/uvisor_exports.h"
#include <stdint.h>
#include <stddef.h>
/** Specify the maximum number of incoming RPC messages for a box
*
* @param max_num_incoming_rpc The maximum number of incoming RPC messages for
* a box
*/
/* FIXME This is a dummy implementation. */
#define UVISOR_BOX_RPC_MAX_INCOMING(max_num_incoming_rpc)
/* This is the token to wait on for the result of an asynchronous RPC. */
typedef uint32_t uvisor_rpc_result_t;
typedef uint32_t (*TFN_Ptr)(uint32_t, uint32_t, uint32_t, uint32_t);
/** Wait for incoming RPC.
*
* @param fn_ptr_array an array of RPC function targets that this call to
* `rpc_fncall_waitfor` should handle RPC to
* @param fn_count the number of function targets in this array
* @param timeout_ms specifies how long to wait (in ms) for an incoming RPC
* message before returning
*/
UVISOR_EXTERN int rpc_fncall_waitfor(const TFN_Ptr fn_ptr_array[], size_t fn_count, uint32_t timeout_ms);
/** Wait for an outgoing RPC to finish.
*
* Wait for the result of a previously started asynchronous RPC. After this
* call, ret will contain the return value of the RPC. The return value of this
* function may indicate that there was an error or a timeout with non-zero.
*
* @param result[in] The token to wait on for the result of an asynchronous RPC
* @param timeout_ms[in] How long to wait (in ms) for the asynchronous RPC
* message to finish before returning
* @param ret[out] The return value resulting from the finished RPC to
* the target function
* @returns Non-zero on error or timeout, zero on successful wait
*/
UVISOR_EXTERN int rpc_fncall_wait(uvisor_rpc_result_t result, uint32_t timeout_ms, uint32_t * ret);
#endif /* __UVISOR_API_RPC_H__ */