gs fan / GSwifiInterface

GSwifiInterface library (interface for GainSpan Wi-Fi GS1011 modules) Please see https://mbed.org/users/gsfan/notebook/GSwifiInterface/

Dependents:   GSwifiInterface_HelloWorld GSwifiInterface_HelloServo GSwifiInterface_UDPEchoServer GSwifiInterface_UDPEchoClient ... more

Fork of WiflyInterface by mbed official

GainSpan Wi-Fi library

The GS1011/GS2100 is an ultra low power 802.11b wireless module from GainSpan.

mbed RTOS supported.

/media/uploads/gsfan/gs_im_002.jpg /media/uploads/gsfan/gs1011m_2.jpg

ゲインスパン Wi-Fi モジュール ライブラリ

ゲインスパン社の低電力 Wi-Fiモジュール（無線LAN） GS1011/GS2100 シリーズ用のライブラリです。

mbed RTOS に対応しています。(mbed2.0)

Socket/TCPSocketConnection.cpp@5:78943b3945b5, 2013-01-27 (annotated)

Committer:
gsfan
Date:
Sun Jan 27 14:31:19 2013 +0000
Revision:
5:78943b3945b5
Parent:
1:fb4494783863
Child:
8:64184a968e3b
1st build

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gsfan 5:78943b3945b5 1 /* Copyright (C) 2012 mbed.org, MIT License
gsfan 5:78943b3945b5 2 *
gsfan 5:78943b3945b5 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
gsfan 5:78943b3945b5 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
gsfan 5:78943b3945b5 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
gsfan 5:78943b3945b5 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
gsfan 5:78943b3945b5 7 * furnished to do so, subject to the following conditions:
gsfan 5:78943b3945b5 8 *
gsfan 5:78943b3945b5 9 * The above copyright notice and this permission notice shall be included in all copies or
gsfan 5:78943b3945b5 10 * substantial portions of the Software.
gsfan 5:78943b3945b5 11 *
gsfan 5:78943b3945b5 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
gsfan 5:78943b3945b5 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
gsfan 5:78943b3945b5 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
gsfan 5:78943b3945b5 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
gsfan 5:78943b3945b5 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
gsfan 5:78943b3945b5 17 */
gsfan 5:78943b3945b5 18 /* Copyright (C) 2013 gsfan, MIT License
gsfan 5:78943b3945b5 19 * port to the GainSpan Wi-FI module GS1011
gsfan 5:78943b3945b5 20 */
gsfan 5:78943b3945b5 21
gsfan 5:78943b3945b5 22 #include "TCPSocketConnection.h"
gsfan 5:78943b3945b5 23 #include <algorithm>
gsfan 5:78943b3945b5 24
gsfan 5:78943b3945b5 25 TCPSocketConnection::TCPSocketConnection() {}
gsfan 5:78943b3945b5 26
gsfan 5:78943b3945b5 27 int TCPSocketConnection::connect(const char* host, const int port)
gsfan 5:78943b3945b5 28 {
gsfan 5:78943b3945b5 29 char cmd[CFG_CMD_SIZE];
gsfan 5:78943b3945b5 30 char ip[16];
gsfan 5:78943b3945b5 31
gsfan 5:78943b3945b5 32 if (_cid < 0 || !_wifi->is_connected(_cid)) {
gsfan 5:78943b3945b5 33 // Socket open
gsfan 5:78943b3945b5 34 if (_wifi->gethostbyname(host, ip) == false) return -1;
gsfan 5:78943b3945b5 35 _server = false;
gsfan 5:78943b3945b5 36 sprintf(cmd, "AT+NCTCP=%s,%d", ip, port);
gsfan 5:78943b3945b5 37 if (_wifi->sendCommand(cmd, GSwifi::RES_CONNECT) == false) return -1;
gsfan 5:78943b3945b5 38 _cid = _wifi->readCID();
gsfan 5:78943b3945b5 39 return 0;
gsfan 5:78943b3945b5 40 }
gsfan 5:78943b3945b5 41
gsfan 5:78943b3945b5 42 return -1;
gsfan 5:78943b3945b5 43 }
gsfan 5:78943b3945b5 44
gsfan 5:78943b3945b5 45 bool TCPSocketConnection::is_connected(void)
gsfan 5:78943b3945b5 46 {
gsfan 5:78943b3945b5 47 return _wifi->is_connected(_cid);
gsfan 5:78943b3945b5 48 }
gsfan 5:78943b3945b5 49
gsfan 5:78943b3945b5 50 int TCPSocketConnection::send(char* data, int length)
gsfan 5:78943b3945b5 51 {
gsfan 5:78943b3945b5 52 char cmd[CFG_CMD_SIZE];
gsfan 5:78943b3945b5 53 Timer tmr;
gsfan 5:78943b3945b5 54
gsfan 5:78943b3945b5 55 if (!_blocking) {
gsfan 5:78943b3945b5 56 tmr.start();
gsfan 5:78943b3945b5 57 while (tmr.read_ms() < _timeout) {
gsfan 5:78943b3945b5 58 if (_wifi->writeable())
gsfan 5:78943b3945b5 59 break;
gsfan 5:78943b3945b5 60 }
gsfan 5:78943b3945b5 61 if (tmr.read_ms() >= _timeout) {
gsfan 5:78943b3945b5 62 return -1;
gsfan 5:78943b3945b5 63 }
gsfan 5:78943b3945b5 64 }
gsfan 5:78943b3945b5 65
gsfan 5:78943b3945b5 66 // TCP Client/Server
gsfan 5:78943b3945b5 67 sprintf(cmd, "\x1bZ%X%04d", _cid, length);
gsfan 5:78943b3945b5 68 _wifi->send(cmd, strlen(cmd));
gsfan 5:78943b3945b5 69 return _wifi->send(data, length, GSwifi::RES_NORMAL);
gsfan 5:78943b3945b5 70 }
gsfan 5:78943b3945b5 71
gsfan 5:78943b3945b5 72 // -1 if unsuccessful, else number of bytes written
gsfan 5:78943b3945b5 73 int TCPSocketConnection::send_all(char* data, int length)
gsfan 5:78943b3945b5 74 {
gsfan 5:78943b3945b5 75 char cmd[CFG_CMD_SIZE];
gsfan 5:78943b3945b5 76 Timer tmr;
gsfan 5:78943b3945b5 77 int idx = 0;
gsfan 5:78943b3945b5 78 tmr.start();
gsfan 5:78943b3945b5 79
gsfan 5:78943b3945b5 80 // TCP Client/Server
gsfan 5:78943b3945b5 81 sprintf(cmd, "\x1bZ%X%04d", _cid, length);
gsfan 5:78943b3945b5 82 _wifi->send(cmd, strlen(cmd));
gsfan 5:78943b3945b5 83
gsfan 5:78943b3945b5 84 while ((tmr.read_ms() < _timeout) || _blocking) {
gsfan 5:78943b3945b5 85
gsfan 5:78943b3945b5 86 idx += _wifi->send(data, length, GSwifi::RES_NORMAL);
gsfan 5:78943b3945b5 87
gsfan 5:78943b3945b5 88 if (idx == -1) return -1;
gsfan 5:78943b3945b5 89 if (idx == length)
gsfan 5:78943b3945b5 90 return idx;
gsfan 5:78943b3945b5 91 }
gsfan 5:78943b3945b5 92 return (idx == 0) ? -1 : idx;
gsfan 5:78943b3945b5 93 }
gsfan 5:78943b3945b5 94
gsfan 5:78943b3945b5 95 // -1 if unsuccessful, else number of bytes received
gsfan 5:78943b3945b5 96 int TCPSocketConnection::receive(char* data, int length)
gsfan 5:78943b3945b5 97 {
gsfan 5:78943b3945b5 98 Timer tmr;
gsfan 5:78943b3945b5 99 int time = -1;
gsfan 5:78943b3945b5 100
gsfan 5:78943b3945b5 101
gsfan 5:78943b3945b5 102 if (!_blocking) {
gsfan 5:78943b3945b5 103 tmr.start();
gsfan 5:78943b3945b5 104 while (time < _timeout + 20) {
gsfan 5:78943b3945b5 105 if (_wifi->readable(_cid)) {
gsfan 5:78943b3945b5 106 break;
gsfan 5:78943b3945b5 107 }
gsfan 5:78943b3945b5 108 time = tmr.read_ms();
gsfan 5:78943b3945b5 109 }
gsfan 5:78943b3945b5 110 if (time >= _timeout + 20) {
gsfan 5:78943b3945b5 111 return -1;
gsfan 5:78943b3945b5 112 }
gsfan 5:78943b3945b5 113 }
gsfan 5:78943b3945b5 114
gsfan 5:78943b3945b5 115
gsfan 5:78943b3945b5 116 while(!_wifi->readable(_cid));
gsfan 5:78943b3945b5 117 int nb_available = _wifi->readable(_cid);
gsfan 5:78943b3945b5 118 for (int i = 0; i < min(nb_available, length); i++) {
gsfan 5:78943b3945b5 119 data[i] = _wifi->getc(_cid);
gsfan 5:78943b3945b5 120 }
gsfan 5:78943b3945b5 121
gsfan 5:78943b3945b5 122 return min(nb_available, length);
gsfan 5:78943b3945b5 123 }
gsfan 5:78943b3945b5 124
gsfan 5:78943b3945b5 125
gsfan 5:78943b3945b5 126 // -1 if unsuccessful, else number of bytes received
gsfan 5:78943b3945b5 127 int TCPSocketConnection::receive_all(char* data, int length)
gsfan 5:78943b3945b5 128 {
gsfan 5:78943b3945b5 129 Timer tmr;
gsfan 5:78943b3945b5 130 int idx = 0;
gsfan 5:78943b3945b5 131 int time = -1;
gsfan 5:78943b3945b5 132
gsfan 5:78943b3945b5 133 tmr.start();
gsfan 5:78943b3945b5 134
gsfan 5:78943b3945b5 135 while (time < _timeout || _blocking) {
gsfan 5:78943b3945b5 136
gsfan 5:78943b3945b5 137 int nb_available = _wifi->readable(_cid);
gsfan 5:78943b3945b5 138 for (int i = 0; i < min(nb_available, length); i++) {
gsfan 5:78943b3945b5 139 data[idx++] = _wifi->getc(_cid);
gsfan 5:78943b3945b5 140 }
gsfan 5:78943b3945b5 141
gsfan 5:78943b3945b5 142 if (idx == length)
gsfan 5:78943b3945b5 143 break;
gsfan 5:78943b3945b5 144
gsfan 5:78943b3945b5 145 time = tmr.read_ms();
gsfan 5:78943b3945b5 146 }
gsfan 5:78943b3945b5 147
gsfan 5:78943b3945b5 148 return (idx == 0) ? -1 : idx;
gsfan 5:78943b3945b5 149 }
gsfan 5:78943b3945b5 150
gsfan 5:78943b3945b5 151 void TCPSocketConnection::confCID (int cid) {
gsfan 5:78943b3945b5 152 char *ip;
gsfan 5:78943b3945b5 153 int port;
gsfan 5:78943b3945b5 154 _server = true;
gsfan 5:78943b3945b5 155 _cid = cid;
gsfan 5:78943b3945b5 156 if (_wifi->readRemote(_cid, &ip, &port)) {
gsfan 5:78943b3945b5 157 set_address(ip, port);
gsfan 5:78943b3945b5 158 }
gsfan 5:78943b3945b5 159 }