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/*
* Copyright (c) 2020-2021, Arm Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef FFARPC_CALLER_H
#define FFARPC_CALLER_H
#include <common/uuid/uuid.h>
#include <rpc_caller.h>
#include <stdbool.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* An RPC caller for Linux user-space clients. Uses the FFA kernel driver
* to communicate with RPC endpoints deployed in partitions accessible
* via FFA.
*/
struct ffarpc_caller {
struct rpc_caller rpc_caller;
int fd;
const char *device_path;
uint16_t dest_partition_id;
uint16_t dest_iface_id;
uint64_t shared_mem_handle;
size_t shared_mem_required_size;
uint8_t *req_buf;
uint8_t *resp_buf;
size_t req_len;
size_t resp_len;
bool is_call_transaction_in_progess;
};
struct rpc_caller *ffarpc_caller_init(struct ffarpc_caller *s, const char *device_path);
void ffarpc_caller_deinit(struct ffarpc_caller *s);
size_t ffarpc_caller_discover(const struct ffarpc_caller *s, const struct uuid_canonical *uuid,
uint16_t *partition_ids, size_t discover_limit);
int ffarpc_caller_open(struct ffarpc_caller *s, uint16_t dest_partition_id, uint16_t dest_iface_id);
int ffarpc_caller_close(struct ffarpc_caller *s);
#ifdef __cplusplus
}
#endif
#endif /* FFARPC_CALLER_H */
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