1 /*
2 * Copyright (c) 2022-2024, Arm Limited. All rights reserved.
3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 *
6 */
7 #include <assert.h>
8
9 #include "rse_comms_protocol_common.h"
10 #include "rse_comms_protocol_pointer_access.h"
11
rse_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 rse_pointer_access_msg_t * msg,size_t * msg_len)12 psa_status_t rse_protocol_pointer_access_serialize_msg(psa_handle_t handle,
13 int16_t type,
14 const psa_invec *in_vec,
15 uint8_t in_len,
16 const psa_outvec *out_vec,
17 uint8_t out_len,
18 struct rse_pointer_access_msg_t *msg,
19 size_t *msg_len)
20 {
21 unsigned int i;
22
23 assert(msg != NULL);
24 assert(msg_len != NULL);
25 assert(in_vec != NULL);
26
27 msg->ctrl_param = PARAM_PACK(type, in_len, out_len);
28 msg->handle = handle;
29
30 /* Fill msg iovec lengths */
31 for (i = 0U; i < in_len; ++i) {
32 msg->io_sizes[i] = in_vec[i].len;
33 msg->host_ptrs[i] = (uint64_t)in_vec[i].base;
34 }
35 for (i = 0U; i < out_len; ++i) {
36 msg->io_sizes[in_len + i] = out_vec[i].len;
37 msg->host_ptrs[in_len + i] = (uint64_t)out_vec[i].base;
38 }
39
40 *msg_len = sizeof(*msg);
41
42 return PSA_SUCCESS;
43 }
44
rse_protocol_pointer_access_deserialize_reply(psa_outvec * out_vec,uint8_t out_len,psa_status_t * return_val,const struct rse_pointer_access_reply_t * reply,size_t reply_size)45 psa_status_t rse_protocol_pointer_access_deserialize_reply(psa_outvec *out_vec,
46 uint8_t out_len,
47 psa_status_t *return_val,
48 const struct rse_pointer_access_reply_t *reply,
49 size_t reply_size)
50 {
51 unsigned int i;
52
53 assert(reply != NULL);
54 assert(return_val != NULL);
55
56 for (i = 0U; i < out_len; ++i) {
57 out_vec[i].len = reply->out_sizes[i];
58 }
59
60 *return_val = reply->return_val;
61
62 return PSA_SUCCESS;
63 }
64