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/*
* Copyright (c) 2022, Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*
*/
#include <assert.h>
#include "rss_comms_protocol_pointer_access.h"
#define TYPE_OFFSET (16U)
#define TYPE_MASK (0xFFFFUL << TYPE_OFFSET)
#define IN_LEN_OFFSET (8U)
#define IN_LEN_MASK (0xFFUL << IN_LEN_OFFSET)
#define OUT_LEN_OFFSET (0U)
#define OUT_LEN_MASK (0xFFUL << OUT_LEN_OFFSET)
#define PARAM_PACK(type, in_len, out_len) \
(((((uint32_t)type) << TYPE_OFFSET) & TYPE_MASK) | \
((((uint32_t)in_len) << IN_LEN_OFFSET) & IN_LEN_MASK) | \
((((uint32_t)out_len) << OUT_LEN_OFFSET) & OUT_LEN_MASK))
psa_status_t rss_protocol_pointer_access_serialize_msg(psa_handle_t handle,
int16_t type,
const psa_invec *in_vec,
uint8_t in_len,
const psa_outvec *out_vec,
uint8_t out_len,
struct rss_pointer_access_msg_t *msg,
size_t *msg_len)
{
unsigned int i;
assert(msg != NULL);
assert(msg_len != NULL);
assert(in_vec != NULL);
msg->ctrl_param = PARAM_PACK(type, in_len, out_len);
msg->handle = handle;
/* Fill msg iovec lengths */
for (i = 0U; i < in_len; ++i) {
msg->io_sizes[i] = in_vec[i].len;
msg->host_ptrs[i] = (uint64_t)in_vec[i].base;
}
for (i = 0U; i < out_len; ++i) {
msg->io_sizes[in_len + i] = out_vec[i].len;
msg->host_ptrs[in_len + i] = (uint64_t)out_vec[i].base;
}
*msg_len = sizeof(*msg);
return PSA_SUCCESS;
}
psa_status_t rss_protocol_pointer_access_deserialize_reply(psa_outvec *out_vec,
uint8_t out_len,
psa_status_t *return_val,
const struct rss_pointer_access_reply_t *reply,
size_t reply_size)
{
unsigned int i;
assert(reply != NULL);
assert(return_val != NULL);
for (i = 0U; i < out_len; ++i) {
out_vec[i].len = reply->out_sizes[i];
}
*return_val = reply->return_val;
return PSA_SUCCESS;
}
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