Raef Coles | 734aaac | 2022-06-15 14:37:22 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2022, Arm Limited. All rights reserved. |
| 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | * |
| 6 | */ |
Tamas Ban | d1bbcbe | 2022-10-03 15:34:02 +0200 | [diff] [blame] | 7 | #include <assert.h> |
Raef Coles | 734aaac | 2022-06-15 14:37:22 +0100 | [diff] [blame] | 8 | |
| 9 | #include "rss_comms_protocol_pointer_access.h" |
| 10 | |
| 11 | #define TYPE_OFFSET (16U) |
| 12 | #define TYPE_MASK (0xFFFFUL << TYPE_OFFSET) |
| 13 | #define IN_LEN_OFFSET (8U) |
| 14 | #define IN_LEN_MASK (0xFFUL << IN_LEN_OFFSET) |
| 15 | #define OUT_LEN_OFFSET (0U) |
| 16 | #define OUT_LEN_MASK (0xFFUL << OUT_LEN_OFFSET) |
| 17 | |
| 18 | #define PARAM_PACK(type, in_len, out_len) \ |
| 19 | (((((uint32_t)type) << TYPE_OFFSET) & TYPE_MASK) | \ |
| 20 | ((((uint32_t)in_len) << IN_LEN_OFFSET) & IN_LEN_MASK) | \ |
| 21 | ((((uint32_t)out_len) << OUT_LEN_OFFSET) & OUT_LEN_MASK)) |
| 22 | |
| 23 | psa_status_t rss_protocol_pointer_access_serialize_msg(psa_handle_t handle, |
| 24 | int16_t type, |
| 25 | const psa_invec *in_vec, |
| 26 | uint8_t in_len, |
| 27 | const psa_outvec *out_vec, |
| 28 | uint8_t out_len, |
| 29 | struct rss_pointer_access_msg_t *msg, |
| 30 | size_t *msg_len) |
| 31 | { |
| 32 | unsigned int i; |
| 33 | |
| 34 | assert(msg != NULL); |
| 35 | assert(msg_len != NULL); |
| 36 | assert(in_vec != NULL); |
Raef Coles | 734aaac | 2022-06-15 14:37:22 +0100 | [diff] [blame] | 37 | |
| 38 | msg->ctrl_param = PARAM_PACK(type, in_len, out_len); |
| 39 | msg->handle = handle; |
| 40 | |
| 41 | /* Fill msg iovec lengths */ |
| 42 | for (i = 0U; i < in_len; ++i) { |
| 43 | msg->io_sizes[i] = in_vec[i].len; |
| 44 | msg->host_ptrs[i] = (uint64_t)in_vec[i].base; |
| 45 | } |
| 46 | for (i = 0U; i < out_len; ++i) { |
| 47 | msg->io_sizes[in_len + i] = out_vec[i].len; |
| 48 | msg->host_ptrs[in_len + i] = (uint64_t)out_vec[i].base; |
| 49 | } |
| 50 | |
| 51 | *msg_len = sizeof(*msg); |
| 52 | |
| 53 | return PSA_SUCCESS; |
| 54 | } |
| 55 | |
| 56 | psa_status_t rss_protocol_pointer_access_deserialize_reply(psa_outvec *out_vec, |
| 57 | uint8_t out_len, |
| 58 | psa_status_t *return_val, |
| 59 | const struct rss_pointer_access_reply_t *reply, |
| 60 | size_t reply_size) |
| 61 | { |
| 62 | unsigned int i; |
| 63 | |
| 64 | assert(reply != NULL); |
Raef Coles | 734aaac | 2022-06-15 14:37:22 +0100 | [diff] [blame] | 65 | assert(return_val != NULL); |
| 66 | |
| 67 | for (i = 0U; i < out_len; ++i) { |
| 68 | out_vec[i].len = reply->out_sizes[i]; |
| 69 | } |
| 70 | |
| 71 | *return_val = reply->return_val; |
| 72 | |
| 73 | return PSA_SUCCESS; |
| 74 | } |