1/*
2 * Copyright (C) 2023 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15#include "ffi_utils.h"
16#include "uart.h"
17
18#include <string>
19
20namespace Hdc {
21#ifndef HOST_MINGW
22extern "C" int32_t GetUartSpeedExt(int32_t speed)
23{
24    return static_cast<int32_t>(GetUartSpeed(static_cast<int>(speed)));
25}
26
27extern "C" int32_t GetUartBitsExt(int32_t bits)
28{
29    return static_cast<int32_t>(GetUartBits(static_cast<int>(bits)));
30}
31
32extern "C" int32_t OpenSerialPortExt(const char* portName)
33{
34    return static_cast<int32_t>(OpenSerialPort(std::string(portName)));
35}
36
37extern "C" int32_t SetSerialExt(int32_t fd, int32_t nSpeed, int32_t nBits, uint8_t nEvent, int32_t nStop)
38{
39    return static_cast<int32_t>(SetSerial(static_cast<int>(fd), static_cast<int>(nSpeed),
40                                          static_cast<int>(nBits), static_cast<char>(nEvent),
41                                          static_cast<int>(nStop)));
42}
43
44extern "C" SerializedBuffer ReadUartDevExt(int32_t fd, uint32_t expectedSize)
45{
46    std::vector<uint8_t> readBuf;
47    ssize_t length = 0;
48    while (length == 0) {
49        length = ReadUartDev(static_cast<int>(fd), readBuf, static_cast<size_t>(expectedSize));
50    }
51
52    char *bufRet = new char[length];
53    (void)memset_s(bufRet, length, 0, length);
54    if (memcpy_s(bufRet, length, readBuf.data(), length) != EOK) {
55        return SerializedBuffer{bufRet, static_cast<uint64_t>(length)};
56    }
57    return SerializedBuffer{bufRet, static_cast<uint64_t>(length)};
58}
59
60extern "C" int32_t WriteUartDevExt(int32_t fd, SerializedBuffer buf)
61{
62    return static_cast<int32_t>(WriteUartDev(static_cast<int>(fd), reinterpret_cast<uint8_t *>(buf.ptr),
63                                             static_cast<size_t>(buf.size)));
64}
65
66extern "C" uint8_t CloseSerialPortExt(int32_t fd)
67{
68    return static_cast<uint8_t>(CloseSerialPort(fd));
69}
70
71#else
72
73extern "C" SerializedBuffer ReadUartDevExt(int32_t fd, uint32_t expectedSize)
74{
75    char *bufRet = new char;
76    ssize_t length = 0;
77    return SerializedBuffer{bufRet, static_cast<uint64_t>(length)};
78}
79
80extern "C" int32_t WriteUartDevExt(int32_t fd, SerializedBuffer buf)
81{
82    return 0;
83}
84
85#endif
86}
87