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/*
* Copyright (c) 2019-2021, Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*
*/
#include "spm_ipc.h"
#include "ffm/spm_psa_client_call.h"
#include "tfm_rpc.h"
#include "utilities.h"
#include "load/partition_defs.h"
static void default_handle_req(void)
{
}
static void default_mailbox_reply(const void *owner, int32_t ret)
{
(void)owner;
(void)ret;
}
static const void *default_get_caller_data(int32_t client_id)
{
(void)client_id;
return NULL;
}
static struct tfm_rpc_ops_t rpc_ops = {
.handle_req = default_handle_req,
.reply = default_mailbox_reply,
.get_caller_data = default_get_caller_data,
};
uint32_t tfm_rpc_psa_framework_version(void)
{
return tfm_spm_client_psa_framework_version();
}
uint32_t tfm_rpc_psa_version(const struct client_call_params_t *params,
bool ns_caller)
{
TFM_CORE_ASSERT(params != NULL);
return tfm_spm_client_psa_version(params->sid, ns_caller);
}
psa_status_t tfm_rpc_psa_connect(const struct client_call_params_t *params,
bool ns_caller)
{
TFM_CORE_ASSERT(params != NULL);
return tfm_spm_client_psa_connect(params->sid, params->version, ns_caller);
}
psa_status_t tfm_rpc_psa_call(const struct client_call_params_t *params,
bool ns_caller)
{
TFM_CORE_ASSERT(params != NULL);
return tfm_spm_client_psa_call(params->handle, params->type,
params->in_vec, params->in_len,
params->out_vec, params->out_len, ns_caller,
TFM_PARTITION_UNPRIVILEGED_MODE);
}
void tfm_rpc_psa_close(const struct client_call_params_t *params,
bool ns_caller)
{
TFM_CORE_ASSERT(params != NULL);
tfm_spm_client_psa_close(params->handle, ns_caller);
}
int32_t tfm_rpc_register_ops(const struct tfm_rpc_ops_t *ops_ptr)
{
if (!ops_ptr) {
return TFM_RPC_INVAL_PARAM;
}
if (!ops_ptr->handle_req || !ops_ptr->reply || !ops_ptr->get_caller_data) {
return TFM_RPC_INVAL_PARAM;
}
/* Currently, one and only one mailbox implementation is supported. */
if ((rpc_ops.handle_req != default_handle_req) ||
(rpc_ops.reply != default_mailbox_reply) || \
(rpc_ops.get_caller_data != default_get_caller_data)) {
return TFM_RPC_CONFLICT_CALLBACK;
}
rpc_ops.handle_req = ops_ptr->handle_req;
rpc_ops.reply = ops_ptr->reply;
rpc_ops.get_caller_data = ops_ptr->get_caller_data;
return TFM_RPC_SUCCESS;
}
void tfm_rpc_unregister_ops(void)
{
rpc_ops.handle_req = default_handle_req;
rpc_ops.reply = default_mailbox_reply;
rpc_ops.get_caller_data = default_get_caller_data;
}
void tfm_rpc_client_call_handler(void)
{
rpc_ops.handle_req();
}
void tfm_rpc_client_call_reply(const void *owner, int32_t ret)
{
const struct tfm_msg_body_t *msg = (const struct tfm_msg_body_t *)owner;
rpc_ops.reply(msg->caller_data, ret);
}
void tfm_rpc_set_caller_data(struct tfm_msg_body_t *msg, int32_t client_id)
{
msg->caller_data = rpc_ops.get_caller_data(client_id);
}
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