ws_mpx_header.h

00001 /*
00002  * Copyright (c) 2018-2019, Arm Limited and affiliates.
00003  * SPDX-License-Identifier: Apache-2.0
00004  *
00005  * Licensed under the Apache License, Version 2.0 (the "License");
00006  * you may not use this file except in compliance with the License.
00007  * You may obtain a copy of the License at
00008  *
00009  *     http://www.apache.org/licenses/LICENSE-2.0
00010  *
00011  * Unless required by applicable law or agreed to in writing, software
00012  * distributed under the License is distributed on an "AS IS" BASIS,
00013  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00014  * See the License for the specific language governing permissions and
00015  * limitations under the License.
00016  */
00017 
00018 #ifndef WS_MPX_HEADER_H_
00019 #define WS_MPX_HEADER_H_
00020 
00021 #define MPX_FT_FULL_FRAME                   0
00022 #define MPX_FT_FULL_FRAME_SMALL_MULTILEX_ID 1
00023 #define MPX_FT_FIRST_OR_SUB_FRAGMENT        2
00024 #define MPX_FT_LAST_FRAGMENT                4
00025 #define MPX_FT_ABORT                        6
00026 
00027 typedef struct {
00028     unsigned    transfer_type: 3;
00029     unsigned    transaction_id: 5;
00030     uint8_t     fragment_number;
00031     uint16_t    total_upper_layer_size;
00032     uint16_t    multiplex_id;
00033     uint8_t     *frame_ptr;
00034     uint16_t    frame_length;
00035 } mpx_msg_t;
00036 
00037 bool ws_llc_mpx_header_frame_parse(uint8_t *ptr, uint16_t length, mpx_msg_t *msg);
00038 uint8_t *ws_llc_mpx_header_write(uint8_t *ptr, const mpx_msg_t *msg);
00039 
00040 
00041 #endif /* WS_MPX_HEADER_H_ */