- Added setBaud() function - Added CheckNetworkStatus() function - Improved messaging system
Dependents: IoT_Ex BatteryModelTester BatteryModelTester
Fork of WiflyInterface by
Wifly/Wifly.cpp@38:e08d655acee6, 2016-11-24 (annotated)
- Committer:
- defrost
- Date:
- Thu Nov 24 16:52:45 2016 +0000
- Revision:
- 38:e08d655acee6
- Parent:
- 36:8774837f5a78
- Removed messages.h; - It is now in the library 'messages'
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
samux | 1:fb4494783863 | 1 | /* Copyright (C) 2012 mbed.org, MIT License |
samux | 1:fb4494783863 | 2 | * |
samux | 1:fb4494783863 | 3 | * Permission is hereby granted, free of charge, to any person obtaining a copy of this software |
samux | 1:fb4494783863 | 4 | * and associated documentation files (the "Software"), to deal in the Software without restriction, |
samux | 1:fb4494783863 | 5 | * including without limitation the rights to use, copy, modify, merge, publish, distribute, |
samux | 1:fb4494783863 | 6 | * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is |
samux | 1:fb4494783863 | 7 | * furnished to do so, subject to the following conditions: |
samux | 1:fb4494783863 | 8 | * |
samux | 1:fb4494783863 | 9 | * The above copyright notice and this permission notice shall be included in all copies or |
samux | 1:fb4494783863 | 10 | * substantial portions of the Software. |
samux | 1:fb4494783863 | 11 | * |
samux | 1:fb4494783863 | 12 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING |
samux | 1:fb4494783863 | 13 | * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
samux | 1:fb4494783863 | 14 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
samux | 1:fb4494783863 | 15 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
samux | 1:fb4494783863 | 16 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
samux | 1:fb4494783863 | 17 | */ |
samux | 1:fb4494783863 | 18 | |
samux | 1:fb4494783863 | 19 | #include "mbed.h" |
samux | 1:fb4494783863 | 20 | #include "Wifly.h" |
samux | 1:fb4494783863 | 21 | #include <string> |
samux | 1:fb4494783863 | 22 | #include <algorithm> |
defrost | 22:6c5bcfa33922 | 23 | |
defrost | 36:8774837f5a78 | 24 | //#define DEBUG |
defrost | 26:eaaedb036df1 | 25 | #define INFOMESSAGES |
defrost | 34:a22a6343e3d4 | 26 | #define WARNMESSAGES |
defrost | 34:a22a6343e3d4 | 27 | #define ERRMESSAGES |
defrost | 34:a22a6343e3d4 | 28 | #define FUNCNAME "Wifly" |
defrost | 34:a22a6343e3d4 | 29 | #include "messages.h" |
samux | 1:fb4494783863 | 30 | |
samux | 1:fb4494783863 | 31 | #define MAX_TRY_JOIN 3 |
samux | 1:fb4494783863 | 32 | |
samux | 1:fb4494783863 | 33 | Wifly * Wifly::inst; |
samux | 1:fb4494783863 | 34 | |
samux | 1:fb4494783863 | 35 | Wifly::Wifly( PinName tx, PinName rx, PinName _reset, PinName tcp_status, const char * ssid, const char * phrase, Security sec): |
defrost | 25:36b2d76ca8d9 | 36 | wifi(tx, rx), reset_pin(_reset), tcp_status(tcp_status), buf_wifly(1024) |
samux | 1:fb4494783863 | 37 | { |
defrost | 35:ce3afc021ec2 | 38 | // Set the default baud rate: |
defrost | 35:ce3afc021ec2 | 39 | serial_baudrate = 9600; |
defrost | 35:ce3afc021ec2 | 40 | |
samux | 1:fb4494783863 | 41 | memset(&state, 0, sizeof(state)); |
samux | 1:fb4494783863 | 42 | state.sec = sec; |
samux | 1:fb4494783863 | 43 | |
samux | 1:fb4494783863 | 44 | // change all ' ' in '$' in the ssid and the passphrase |
samux | 1:fb4494783863 | 45 | strcpy(this->ssid, ssid); |
samux | 1:fb4494783863 | 46 | for (int i = 0; i < strlen(ssid); i++) { |
samux | 1:fb4494783863 | 47 | if (this->ssid[i] == ' ') |
samux | 1:fb4494783863 | 48 | this->ssid[i] = '$'; |
samux | 1:fb4494783863 | 49 | } |
samux | 1:fb4494783863 | 50 | strcpy(this->phrase, phrase); |
samux | 1:fb4494783863 | 51 | for (int i = 0; i < strlen(phrase); i++) { |
samux | 1:fb4494783863 | 52 | if (this->phrase[i] == ' ') |
samux | 1:fb4494783863 | 53 | this->phrase[i] = '$'; |
samux | 1:fb4494783863 | 54 | } |
samux | 1:fb4494783863 | 55 | |
samux | 1:fb4494783863 | 56 | inst = this; |
samux | 1:fb4494783863 | 57 | attach_rx(false); |
samux | 1:fb4494783863 | 58 | state.cmd_mode = false; |
defrost | 35:ce3afc021ec2 | 59 | DBG("Wifly Constructed"); |
samux | 1:fb4494783863 | 60 | } |
samux | 1:fb4494783863 | 61 | |
defrost | 15:eaa1ec0e26bf | 62 | void Wifly::setBaud(int baudrate) |
defrost | 15:eaa1ec0e26bf | 63 | { |
defrost | 18:cf3bd54703a5 | 64 | char cmd[28]; |
defrost | 35:ce3afc021ec2 | 65 | // Save the baudrate: |
defrost | 35:ce3afc021ec2 | 66 | if(baudrate > 0){ |
defrost | 35:ce3afc021ec2 | 67 | serial_baudrate = baudrate; |
defrost | 35:ce3afc021ec2 | 68 | } |
defrost | 36:8774837f5a78 | 69 | DBG("Setting wifi shield baudrate to: %d.", serial_baudrate); |
defrost | 15:eaa1ec0e26bf | 70 | // This sets the baud rate 'instantly' |
defrost | 35:ce3afc021ec2 | 71 | sprintf(cmd, "set u i %d\r", serial_baudrate); |
defrost | 15:eaa1ec0e26bf | 72 | // This one sets it some other way that does not work |
defrost | 15:eaa1ec0e26bf | 73 | //sprintf(cmd, "set u b %d\r", baudrate); |
defrost | 15:eaa1ec0e26bf | 74 | // Set baud rate of wifly: |
defrost | 16:de16e8b077c1 | 75 | sendCommand(cmd, NULL); |
defrost | 16:de16e8b077c1 | 76 | wait(0.5); |
defrost | 15:eaa1ec0e26bf | 77 | // Set baud rate of UART: |
defrost | 35:ce3afc021ec2 | 78 | wifi.baud(serial_baudrate); |
defrost | 16:de16e8b077c1 | 79 | wait(0.5); |
defrost | 15:eaa1ec0e26bf | 80 | exit(); |
defrost | 15:eaa1ec0e26bf | 81 | } |
defrost | 15:eaa1ec0e26bf | 82 | |
samux | 1:fb4494783863 | 83 | bool Wifly::join() |
samux | 1:fb4494783863 | 84 | { |
defrost | 18:cf3bd54703a5 | 85 | char cmd[28]; |
samux | 1:fb4494783863 | 86 | |
samux | 1:fb4494783863 | 87 | for (int i= 0; i < MAX_TRY_JOIN; i++) { |
samux | 2:8e54830d0df7 | 88 | |
samux | 2:8e54830d0df7 | 89 | // no auto join |
samux | 2:8e54830d0df7 | 90 | if (!sendCommand("set w j 0\r", "AOK")) |
samux | 2:8e54830d0df7 | 91 | continue; |
samux | 2:8e54830d0df7 | 92 | |
samux | 2:8e54830d0df7 | 93 | //no echo |
samux | 2:8e54830d0df7 | 94 | if (!sendCommand("set u m 1\r", "AOK")) |
samux | 2:8e54830d0df7 | 95 | continue; |
samux | 2:8e54830d0df7 | 96 | |
samux | 1:fb4494783863 | 97 | // set time |
samux | 4:0bcec6272784 | 98 | if (!sendCommand("set c t 30\r", "AOK")) |
samux | 1:fb4494783863 | 99 | continue; |
samux | 1:fb4494783863 | 100 | |
samux | 1:fb4494783863 | 101 | // set size |
samux | 4:0bcec6272784 | 102 | if (!sendCommand("set c s 1024\r", "AOK")) |
samux | 1:fb4494783863 | 103 | continue; |
samux | 1:fb4494783863 | 104 | |
samux | 1:fb4494783863 | 105 | // red led on when tcp connection active |
samux | 1:fb4494783863 | 106 | if (!sendCommand("set s i 0x40\r", "AOK")) |
samux | 1:fb4494783863 | 107 | continue; |
samux | 1:fb4494783863 | 108 | |
samux | 1:fb4494783863 | 109 | // no string sent to the tcp client |
samux | 1:fb4494783863 | 110 | if (!sendCommand("set c r 0\r", "AOK")) |
samux | 1:fb4494783863 | 111 | continue; |
samux | 1:fb4494783863 | 112 | |
samux | 1:fb4494783863 | 113 | // tcp protocol |
samux | 1:fb4494783863 | 114 | if (!sendCommand("set i p 2\r", "AOK")) |
samux | 1:fb4494783863 | 115 | continue; |
samux | 1:fb4494783863 | 116 | |
samux | 1:fb4494783863 | 117 | // tcp retry |
samux | 1:fb4494783863 | 118 | if (!sendCommand("set i f 0x7\r", "AOK")) |
samux | 1:fb4494783863 | 119 | continue; |
samux | 2:8e54830d0df7 | 120 | |
samux | 2:8e54830d0df7 | 121 | // set dns server |
samux | 2:8e54830d0df7 | 122 | if (!sendCommand("set d n rn.microchip.com\r", "AOK")) |
samux | 1:fb4494783863 | 123 | continue; |
samux | 1:fb4494783863 | 124 | |
samux | 1:fb4494783863 | 125 | //dhcp |
samux | 1:fb4494783863 | 126 | sprintf(cmd, "set i d %d\r", (state.dhcp) ? 1 : 0); |
samux | 1:fb4494783863 | 127 | if (!sendCommand(cmd, "AOK")) |
samux | 1:fb4494783863 | 128 | continue; |
samux | 1:fb4494783863 | 129 | |
samux | 1:fb4494783863 | 130 | // ssid |
samux | 1:fb4494783863 | 131 | sprintf(cmd, "set w s %s\r", ssid); |
lz307 | 7:3152fcc74390 | 132 | if (!sendCommand(cmd, "AOK", NULL, 1000)) |
samux | 1:fb4494783863 | 133 | continue; |
samux | 1:fb4494783863 | 134 | |
samux | 1:fb4494783863 | 135 | //auth |
samux | 1:fb4494783863 | 136 | sprintf(cmd, "set w a %d\r", state.sec); |
samux | 1:fb4494783863 | 137 | if (!sendCommand(cmd, "AOK")) |
samux | 1:fb4494783863 | 138 | continue; |
samux | 1:fb4494783863 | 139 | |
samux | 1:fb4494783863 | 140 | // if no dhcp, set ip, netmask and gateway |
samux | 1:fb4494783863 | 141 | if (!state.dhcp) { |
samux | 1:fb4494783863 | 142 | DBG("not dhcp\r"); |
samux | 1:fb4494783863 | 143 | |
samux | 1:fb4494783863 | 144 | sprintf(cmd, "set i a %s\r\n", ip); |
samux | 1:fb4494783863 | 145 | if (!sendCommand(cmd, "AOK")) |
samux | 1:fb4494783863 | 146 | continue; |
samux | 1:fb4494783863 | 147 | |
samux | 1:fb4494783863 | 148 | sprintf(cmd, "set i n %s\r", netmask); |
samux | 1:fb4494783863 | 149 | if (!sendCommand(cmd, "AOK")) |
samux | 1:fb4494783863 | 150 | continue; |
samux | 1:fb4494783863 | 151 | |
samux | 1:fb4494783863 | 152 | sprintf(cmd, "set i g %s\r", gateway); |
samux | 1:fb4494783863 | 153 | if (!sendCommand(cmd, "AOK")) |
samux | 1:fb4494783863 | 154 | continue; |
samux | 1:fb4494783863 | 155 | } |
samux | 1:fb4494783863 | 156 | |
samux | 1:fb4494783863 | 157 | //key step |
samux | 1:fb4494783863 | 158 | if (state.sec != NONE) { |
defrost | 12:1aaea7f302e6 | 159 | if ((state.sec == WPA)||(state.sec == WPA2)) |
samux | 1:fb4494783863 | 160 | sprintf(cmd, "set w p %s\r", phrase); |
samux | 1:fb4494783863 | 161 | else if (state.sec == WEP_128) |
samux | 1:fb4494783863 | 162 | sprintf(cmd, "set w k %s\r", phrase); |
samux | 1:fb4494783863 | 163 | |
lz307 | 7:3152fcc74390 | 164 | if (!sendCommand(cmd, "AOK", NULL, 1000)) |
samux | 1:fb4494783863 | 165 | continue; |
samux | 1:fb4494783863 | 166 | } |
samux | 1:fb4494783863 | 167 | |
samux | 1:fb4494783863 | 168 | //join the network |
samux | 1:fb4494783863 | 169 | sprintf(cmd, "join\r"); |
samux | 1:fb4494783863 | 170 | if (!sendCommand(cmd, "Associated", NULL, 3000)) |
samux | 1:fb4494783863 | 171 | continue; |
lz307 | 7:3152fcc74390 | 172 | |
lz307 | 7:3152fcc74390 | 173 | if (!sendCommand("", "IP=", NULL, 10000)) |
lz307 | 7:3152fcc74390 | 174 | continue; |
samux | 1:fb4494783863 | 175 | |
samux | 1:fb4494783863 | 176 | if (state.dhcp) { |
lz307 | 7:3152fcc74390 | 177 | if (!sendCommand("get i\r", "DHCP=ON", NULL, 3000)) |
samux | 1:fb4494783863 | 178 | continue; |
samux | 1:fb4494783863 | 179 | } |
samux | 1:fb4494783863 | 180 | |
samux | 2:8e54830d0df7 | 181 | if (!sendCommand("save\r", "Stor")) |
samux | 2:8e54830d0df7 | 182 | continue; |
samux | 2:8e54830d0df7 | 183 | |
samux | 1:fb4494783863 | 184 | exit(); |
samux | 1:fb4494783863 | 185 | |
samux | 1:fb4494783863 | 186 | state.associated = true; |
defrost | 36:8774837f5a78 | 187 | INFO("ssid: %s", this->ssid); |
defrost | 36:8774837f5a78 | 188 | INFO("phrase: %s", this->phrase); |
defrost | 36:8774837f5a78 | 189 | INFO("security: %s", getStringSecurity()); |
defrost | 13:8846f12fa277 | 190 | |
samux | 1:fb4494783863 | 191 | return true; |
samux | 1:fb4494783863 | 192 | } |
samux | 1:fb4494783863 | 193 | return false; |
samux | 1:fb4494783863 | 194 | } |
samux | 1:fb4494783863 | 195 | |
samux | 1:fb4494783863 | 196 | |
samux | 1:fb4494783863 | 197 | bool Wifly::setProtocol(Protocol p) |
samux | 1:fb4494783863 | 198 | { |
samux | 1:fb4494783863 | 199 | // use udp auto pairing |
samux | 1:fb4494783863 | 200 | char cmd[20]; |
samux | 1:fb4494783863 | 201 | sprintf(cmd, "set i p %d\r", p); |
samux | 1:fb4494783863 | 202 | if (!sendCommand(cmd, "AOK")) |
samux | 1:fb4494783863 | 203 | return false; |
samux | 1:fb4494783863 | 204 | |
samux | 1:fb4494783863 | 205 | switch(p) { |
samux | 1:fb4494783863 | 206 | case TCP: |
samux | 1:fb4494783863 | 207 | // set ip flags: tcp retry enabled |
samux | 1:fb4494783863 | 208 | if (!sendCommand("set i f 0x07\r", "AOK")) |
samux | 1:fb4494783863 | 209 | return false; |
samux | 1:fb4494783863 | 210 | break; |
samux | 1:fb4494783863 | 211 | case UDP: |
samux | 1:fb4494783863 | 212 | // set ip flags: udp auto pairing enabled |
samux | 1:fb4494783863 | 213 | if (!sendCommand("set i h 0.0.0.0\r", "AOK")) |
samux | 1:fb4494783863 | 214 | return false; |
samux | 4:0bcec6272784 | 215 | if (!sendCommand("set i f 0x40\r", "AOK")) |
samux | 1:fb4494783863 | 216 | return false; |
samux | 1:fb4494783863 | 217 | break; |
samux | 1:fb4494783863 | 218 | } |
samux | 1:fb4494783863 | 219 | state.proto = p; |
samux | 1:fb4494783863 | 220 | return true; |
samux | 1:fb4494783863 | 221 | } |
samux | 1:fb4494783863 | 222 | |
samux | 1:fb4494783863 | 223 | char * Wifly::getStringSecurity() |
samux | 1:fb4494783863 | 224 | { |
samux | 1:fb4494783863 | 225 | switch(state.sec) { |
samux | 1:fb4494783863 | 226 | case NONE: |
samux | 1:fb4494783863 | 227 | return "NONE"; |
samux | 1:fb4494783863 | 228 | case WEP_128: |
samux | 1:fb4494783863 | 229 | return "WEP_128"; |
samux | 1:fb4494783863 | 230 | case WPA: |
samux | 1:fb4494783863 | 231 | return "WPA"; |
defrost | 13:8846f12fa277 | 232 | case WPA2: |
defrost | 13:8846f12fa277 | 233 | return "WPA2"; |
samux | 1:fb4494783863 | 234 | } |
samux | 1:fb4494783863 | 235 | return "UNKNOWN"; |
samux | 1:fb4494783863 | 236 | } |
samux | 1:fb4494783863 | 237 | |
samux | 1:fb4494783863 | 238 | bool Wifly::connect(const char * host, int port) |
samux | 1:fb4494783863 | 239 | { |
defrost | 18:cf3bd54703a5 | 240 | char rcv[28]; |
defrost | 18:cf3bd54703a5 | 241 | char cmd[28]; |
defrost | 12:1aaea7f302e6 | 242 | |
defrost | 12:1aaea7f302e6 | 243 | |
samux | 1:fb4494783863 | 244 | |
samux | 2:8e54830d0df7 | 245 | // try to open |
samux | 2:8e54830d0df7 | 246 | sprintf(cmd, "open %s %d\r", host, port); |
defrost | 34:a22a6343e3d4 | 247 | DBG("CMD1: %s",cmd); |
defrost | 18:cf3bd54703a5 | 248 | if (sendCommand(cmd, "OPEN", rcv, 10000)) { |
samux | 2:8e54830d0df7 | 249 | state.tcp = true; |
samux | 2:8e54830d0df7 | 250 | state.cmd_mode = false; |
samux | 2:8e54830d0df7 | 251 | return true; |
samux | 1:fb4494783863 | 252 | } |
defrost | 34:a22a6343e3d4 | 253 | DBG("CMD2: %s",cmd); |
defrost | 34:a22a6343e3d4 | 254 | DBG("CMD4: %s",rcv); |
samux | 2:8e54830d0df7 | 255 | // if failed, retry and parse the response |
samux | 2:8e54830d0df7 | 256 | if (sendCommand(cmd, NULL, rcv, 5000)) { |
defrost | 34:a22a6343e3d4 | 257 | DBG("CMD5: %s",rcv); |
samux | 1:fb4494783863 | 258 | if (strstr(rcv, "OPEN") == NULL) { |
samux | 1:fb4494783863 | 259 | if (strstr(rcv, "Connected") != NULL) { |
samux | 2:8e54830d0df7 | 260 | wait(0.25); |
samux | 1:fb4494783863 | 261 | if (!sendCommand("close\r", "CLOS")) |
samux | 1:fb4494783863 | 262 | return false; |
samux | 2:8e54830d0df7 | 263 | wait(0.25); |
samux | 2:8e54830d0df7 | 264 | if (!sendCommand(cmd, "OPEN", NULL, 10000)) |
samux | 1:fb4494783863 | 265 | return false; |
samux | 1:fb4494783863 | 266 | } else { |
samux | 1:fb4494783863 | 267 | return false; |
samux | 1:fb4494783863 | 268 | } |
samux | 1:fb4494783863 | 269 | } |
samux | 1:fb4494783863 | 270 | } else { |
defrost | 34:a22a6343e3d4 | 271 | DBG("CMD5: %s",rcv); |
samux | 1:fb4494783863 | 272 | return false; |
samux | 1:fb4494783863 | 273 | } |
defrost | 12:1aaea7f302e6 | 274 | |
samux | 2:8e54830d0df7 | 275 | |
samux | 1:fb4494783863 | 276 | state.tcp = true; |
samux | 1:fb4494783863 | 277 | state.cmd_mode = false; |
samux | 1:fb4494783863 | 278 | |
samux | 1:fb4494783863 | 279 | return true; |
samux | 1:fb4494783863 | 280 | } |
samux | 1:fb4494783863 | 281 | |
samux | 1:fb4494783863 | 282 | |
samux | 1:fb4494783863 | 283 | bool Wifly::gethostbyname(const char * host, char * ip) |
samux | 1:fb4494783863 | 284 | { |
samux | 1:fb4494783863 | 285 | string h = host; |
samux | 1:fb4494783863 | 286 | char cmd[30], rcv[100]; |
samux | 1:fb4494783863 | 287 | int l = 0; |
samux | 1:fb4494783863 | 288 | char * point; |
samux | 1:fb4494783863 | 289 | int nb_digits = 0; |
samux | 1:fb4494783863 | 290 | |
samux | 1:fb4494783863 | 291 | // no dns needed |
samux | 1:fb4494783863 | 292 | int pos = h.find("."); |
samux | 1:fb4494783863 | 293 | if (pos != string::npos) { |
samux | 1:fb4494783863 | 294 | string sub = h.substr(0, h.find(".")); |
samux | 1:fb4494783863 | 295 | nb_digits = atoi(sub.c_str()); |
samux | 1:fb4494783863 | 296 | } |
samux | 1:fb4494783863 | 297 | if (count(h.begin(), h.end(), '.') == 3 && nb_digits > 0) { |
samux | 1:fb4494783863 | 298 | strcpy(ip, host); |
samux | 1:fb4494783863 | 299 | } |
samux | 1:fb4494783863 | 300 | // dns needed |
samux | 1:fb4494783863 | 301 | else { |
samux | 1:fb4494783863 | 302 | nb_digits = 0; |
samux | 1:fb4494783863 | 303 | sprintf(cmd, "lookup %s\r", host); |
samux | 1:fb4494783863 | 304 | if (!sendCommand(cmd, NULL, rcv)) |
samux | 1:fb4494783863 | 305 | return false; |
samux | 1:fb4494783863 | 306 | |
samux | 1:fb4494783863 | 307 | // look for the ip address |
samux | 1:fb4494783863 | 308 | char * begin = strstr(rcv, "=") + 1; |
samux | 1:fb4494783863 | 309 | for (int i = 0; i < 3; i++) { |
samux | 1:fb4494783863 | 310 | point = strstr(begin + l, "."); |
samux | 1:fb4494783863 | 311 | DBG("str: %s", begin + l); |
samux | 1:fb4494783863 | 312 | l += point - (begin + l) + 1; |
samux | 1:fb4494783863 | 313 | } |
samux | 1:fb4494783863 | 314 | DBG("str: %s", begin + l); |
samux | 1:fb4494783863 | 315 | while(*(begin + l + nb_digits) >= '0' && *(begin + l + nb_digits) <= '9') { |
samux | 1:fb4494783863 | 316 | DBG("digit: %c", *(begin + l + nb_digits)); |
samux | 1:fb4494783863 | 317 | nb_digits++; |
samux | 1:fb4494783863 | 318 | } |
samux | 1:fb4494783863 | 319 | memcpy(ip, begin, l + nb_digits); |
samux | 1:fb4494783863 | 320 | ip[l+nb_digits] = 0; |
samux | 1:fb4494783863 | 321 | DBG("ip from dns: %s", ip); |
samux | 1:fb4494783863 | 322 | } |
samux | 1:fb4494783863 | 323 | return true; |
samux | 1:fb4494783863 | 324 | } |
samux | 1:fb4494783863 | 325 | |
samux | 1:fb4494783863 | 326 | |
samux | 1:fb4494783863 | 327 | void Wifly::flush() |
samux | 1:fb4494783863 | 328 | { |
samux | 1:fb4494783863 | 329 | buf_wifly.flush(); |
samux | 1:fb4494783863 | 330 | } |
samux | 1:fb4494783863 | 331 | |
samux | 1:fb4494783863 | 332 | bool Wifly::sendCommand(const char * cmd, const char * ack, char * res, int timeout) |
samux | 1:fb4494783863 | 333 | { |
samux | 1:fb4494783863 | 334 | if (!state.cmd_mode) { |
samux | 1:fb4494783863 | 335 | cmdMode(); |
samux | 1:fb4494783863 | 336 | } |
samux | 1:fb4494783863 | 337 | if (send(cmd, strlen(cmd), ack, res, timeout) == -1) { |
defrost | 23:cb8522185c56 | 338 | ERR("sendCommand: cannot (%s)", cmd); |
defrost | 36:8774837f5a78 | 339 | if(strcmp(cmd, "exit") != 0){ |
defrost | 36:8774837f5a78 | 340 | exit(); |
defrost | 36:8774837f5a78 | 341 | }else{ |
defrost | 36:8774837f5a78 | 342 | WARN("Manually setting cmd_mode to false."); |
defrost | 36:8774837f5a78 | 343 | state.cmd_mode = false; |
defrost | 36:8774837f5a78 | 344 | } |
samux | 1:fb4494783863 | 345 | return false; |
samux | 1:fb4494783863 | 346 | } |
samux | 1:fb4494783863 | 347 | return true; |
samux | 1:fb4494783863 | 348 | } |
samux | 1:fb4494783863 | 349 | |
samux | 1:fb4494783863 | 350 | bool Wifly::cmdMode() |
samux | 1:fb4494783863 | 351 | { |
samux | 1:fb4494783863 | 352 | // if already in cmd mode, return |
samux | 1:fb4494783863 | 353 | if (state.cmd_mode) |
samux | 1:fb4494783863 | 354 | return true; |
samux | 1:fb4494783863 | 355 | |
lz307 | 7:3152fcc74390 | 356 | if (send("$$$", 3, "CMD") == -1 && send("\r",1,">") != true) { |
defrost | 34:a22a6343e3d4 | 357 | ERR("cannot enter in cmd mode"); |
samux | 2:8e54830d0df7 | 358 | exit(); |
samux | 1:fb4494783863 | 359 | return false; |
samux | 1:fb4494783863 | 360 | } |
samux | 1:fb4494783863 | 361 | state.cmd_mode = true; |
samux | 1:fb4494783863 | 362 | return true; |
samux | 1:fb4494783863 | 363 | } |
samux | 1:fb4494783863 | 364 | |
samux | 1:fb4494783863 | 365 | bool Wifly::disconnect() |
samux | 1:fb4494783863 | 366 | { |
samux | 1:fb4494783863 | 367 | // if already disconnected, return |
samux | 1:fb4494783863 | 368 | if (!state.associated) |
samux | 1:fb4494783863 | 369 | return true; |
samux | 2:8e54830d0df7 | 370 | |
samux | 1:fb4494783863 | 371 | if (!sendCommand("leave\r", "DeAuth")) |
samux | 1:fb4494783863 | 372 | return false; |
samux | 1:fb4494783863 | 373 | exit(); |
samux | 2:8e54830d0df7 | 374 | |
samux | 1:fb4494783863 | 375 | state.associated = false; |
samux | 1:fb4494783863 | 376 | return true; |
samux | 1:fb4494783863 | 377 | |
samux | 1:fb4494783863 | 378 | } |
samux | 1:fb4494783863 | 379 | |
samux | 1:fb4494783863 | 380 | bool Wifly::is_connected() |
samux | 1:fb4494783863 | 381 | { |
samux | 1:fb4494783863 | 382 | return (tcp_status.read() == 1) ? true : false; |
samux | 1:fb4494783863 | 383 | } |
samux | 1:fb4494783863 | 384 | |
samux | 1:fb4494783863 | 385 | |
samux | 1:fb4494783863 | 386 | void Wifly::reset() |
samux | 1:fb4494783863 | 387 | { |
defrost | 36:8774837f5a78 | 388 | |
samux | 1:fb4494783863 | 389 | reset_pin = 0; |
defrost | 36:8774837f5a78 | 390 | wifi.baud(9600); |
defrost | 36:8774837f5a78 | 391 | flush(); |
defrost | 36:8774837f5a78 | 392 | state.cmd_mode = false; |
defrost | 35:ce3afc021ec2 | 393 | wait(0.5); |
samux | 1:fb4494783863 | 394 | reset_pin = 1; |
defrost | 36:8774837f5a78 | 395 | // Set the serial port baud rate back to default: |
defrost | 35:ce3afc021ec2 | 396 | wait(0.5); |
defrost | 36:8774837f5a78 | 397 | INFO("Wifi Shield Reset"); |
defrost | 35:ce3afc021ec2 | 398 | setBaud(-1); |
defrost | 35:ce3afc021ec2 | 399 | DBG("Baud Rate updated from Reset."); |
samux | 1:fb4494783863 | 400 | } |
samux | 1:fb4494783863 | 401 | |
samux | 3:9aa05e19c62e | 402 | bool Wifly::reboot() |
samux | 3:9aa05e19c62e | 403 | { |
samux | 3:9aa05e19c62e | 404 | // if already in cmd mode, return |
samux | 3:9aa05e19c62e | 405 | if (!sendCommand("reboot\r")) |
samux | 3:9aa05e19c62e | 406 | return false; |
samux | 3:9aa05e19c62e | 407 | |
samux | 3:9aa05e19c62e | 408 | wait(0.3); |
samux | 3:9aa05e19c62e | 409 | |
samux | 3:9aa05e19c62e | 410 | state.cmd_mode = false; |
samux | 3:9aa05e19c62e | 411 | return true; |
samux | 3:9aa05e19c62e | 412 | } |
samux | 3:9aa05e19c62e | 413 | |
samux | 1:fb4494783863 | 414 | bool Wifly::close() |
samux | 1:fb4494783863 | 415 | { |
samux | 1:fb4494783863 | 416 | // if not connected, return |
samux | 1:fb4494783863 | 417 | if (!state.tcp) |
samux | 1:fb4494783863 | 418 | return true; |
samux | 2:8e54830d0df7 | 419 | |
samux | 1:fb4494783863 | 420 | wait(0.25); |
samux | 1:fb4494783863 | 421 | if (!sendCommand("close\r", "CLOS")) |
samux | 1:fb4494783863 | 422 | return false; |
samux | 1:fb4494783863 | 423 | exit(); |
samux | 2:8e54830d0df7 | 424 | |
samux | 1:fb4494783863 | 425 | state.tcp = false; |
samux | 1:fb4494783863 | 426 | return true; |
samux | 1:fb4494783863 | 427 | } |
samux | 1:fb4494783863 | 428 | |
samux | 1:fb4494783863 | 429 | |
samux | 1:fb4494783863 | 430 | int Wifly::putc(char c) |
samux | 1:fb4494783863 | 431 | { |
samux | 1:fb4494783863 | 432 | while (!wifi.writeable()); |
samux | 1:fb4494783863 | 433 | return wifi.putc(c); |
samux | 1:fb4494783863 | 434 | } |
samux | 1:fb4494783863 | 435 | |
samux | 1:fb4494783863 | 436 | |
samux | 1:fb4494783863 | 437 | bool Wifly::exit() |
samux | 1:fb4494783863 | 438 | { |
samux | 1:fb4494783863 | 439 | flush(); |
samux | 1:fb4494783863 | 440 | if (!state.cmd_mode) |
samux | 1:fb4494783863 | 441 | return true; |
samux | 1:fb4494783863 | 442 | if (!sendCommand("exit\r", "EXIT")) |
samux | 1:fb4494783863 | 443 | return false; |
samux | 1:fb4494783863 | 444 | state.cmd_mode = false; |
samux | 1:fb4494783863 | 445 | flush(); |
samux | 1:fb4494783863 | 446 | return true; |
samux | 1:fb4494783863 | 447 | } |
samux | 1:fb4494783863 | 448 | |
samux | 1:fb4494783863 | 449 | |
samux | 1:fb4494783863 | 450 | int Wifly::readable() |
samux | 1:fb4494783863 | 451 | { |
samux | 1:fb4494783863 | 452 | return buf_wifly.available(); |
samux | 1:fb4494783863 | 453 | } |
samux | 1:fb4494783863 | 454 | |
samux | 1:fb4494783863 | 455 | int Wifly::writeable() |
samux | 1:fb4494783863 | 456 | { |
samux | 1:fb4494783863 | 457 | return wifi.writeable(); |
samux | 1:fb4494783863 | 458 | } |
samux | 1:fb4494783863 | 459 | |
samux | 1:fb4494783863 | 460 | char Wifly::getc() |
samux | 1:fb4494783863 | 461 | { |
samux | 1:fb4494783863 | 462 | char c; |
defrost | 24:705480e2e482 | 463 | //DBG("Waiting for buf_wifly.available() to return true..."); |
samux | 1:fb4494783863 | 464 | while (!buf_wifly.available()); |
defrost | 24:705480e2e482 | 465 | //DBG("Dequeue-ing c..."); |
samux | 1:fb4494783863 | 466 | buf_wifly.dequeue(&c); |
defrost | 24:705480e2e482 | 467 | //DBG("Return c:(%c)",c); |
samux | 1:fb4494783863 | 468 | return c; |
samux | 1:fb4494783863 | 469 | } |
samux | 1:fb4494783863 | 470 | |
samux | 1:fb4494783863 | 471 | void Wifly::handler_rx(void) |
samux | 1:fb4494783863 | 472 | { |
samux | 1:fb4494783863 | 473 | //read characters |
samux | 1:fb4494783863 | 474 | while (wifi.readable()) |
samux | 1:fb4494783863 | 475 | buf_wifly.queue(wifi.getc()); |
samux | 1:fb4494783863 | 476 | } |
samux | 1:fb4494783863 | 477 | |
samux | 1:fb4494783863 | 478 | void Wifly::attach_rx(bool callback) |
samux | 1:fb4494783863 | 479 | { |
samux | 1:fb4494783863 | 480 | if (!callback) |
samux | 1:fb4494783863 | 481 | wifi.attach(NULL); |
samux | 1:fb4494783863 | 482 | else |
samux | 1:fb4494783863 | 483 | wifi.attach(this, &Wifly::handler_rx); |
samux | 1:fb4494783863 | 484 | } |
samux | 1:fb4494783863 | 485 | |
samux | 1:fb4494783863 | 486 | |
samux | 1:fb4494783863 | 487 | int Wifly::send(const char * str, int len, const char * ACK, char * res, int timeout) |
samux | 1:fb4494783863 | 488 | { |
samux | 1:fb4494783863 | 489 | char read; |
samux | 1:fb4494783863 | 490 | size_t found = string::npos; |
samux | 1:fb4494783863 | 491 | string checking; |
samux | 1:fb4494783863 | 492 | Timer tmr; |
samux | 1:fb4494783863 | 493 | int result = 0; |
defrost | 30:2c704a72d88a | 494 | |
defrost | 33:26a14bc6d90e | 495 | // Don't display the string that we will be sending because it is encoded, thus may screw up printf() |
defrost | 30:2c704a72d88a | 496 | if(ACK == NULL){ |
defrost | 33:26a14bc6d90e | 497 | DBG("Will send a string, no ACK requested."); |
defrost | 30:2c704a72d88a | 498 | }else{ |
defrost | 33:26a14bc6d90e | 499 | DBG("Will send a string, looking for ACK: %s", ACK); |
defrost | 30:2c704a72d88a | 500 | } |
samux | 1:fb4494783863 | 501 | |
samux | 1:fb4494783863 | 502 | attach_rx(false); |
samux | 1:fb4494783863 | 503 | |
samux | 1:fb4494783863 | 504 | //We flush the buffer |
samux | 1:fb4494783863 | 505 | while (wifi.readable()) |
samux | 1:fb4494783863 | 506 | wifi.getc(); |
samux | 1:fb4494783863 | 507 | |
samux | 1:fb4494783863 | 508 | if (!ACK || !strcmp(ACK, "NO")) { |
samux | 1:fb4494783863 | 509 | for (int i = 0; i < len; i++) |
samux | 1:fb4494783863 | 510 | result = (putc(str[i]) == str[i]) ? result + 1 : result; |
samux | 1:fb4494783863 | 511 | } else { |
samux | 1:fb4494783863 | 512 | //We flush the buffer |
samux | 1:fb4494783863 | 513 | while (wifi.readable()) |
samux | 1:fb4494783863 | 514 | wifi.getc(); |
samux | 1:fb4494783863 | 515 | |
samux | 1:fb4494783863 | 516 | tmr.start(); |
samux | 1:fb4494783863 | 517 | for (int i = 0; i < len; i++) |
samux | 1:fb4494783863 | 518 | result = (putc(str[i]) == str[i]) ? result + 1 : result; |
samux | 1:fb4494783863 | 519 | |
samux | 1:fb4494783863 | 520 | while (1) { |
samux | 1:fb4494783863 | 521 | if (tmr.read_ms() > timeout) { |
samux | 1:fb4494783863 | 522 | //We flush the buffer |
samux | 1:fb4494783863 | 523 | while (wifi.readable()) |
samux | 1:fb4494783863 | 524 | wifi.getc(); |
samux | 1:fb4494783863 | 525 | |
defrost | 23:cb8522185c56 | 526 | DBG("check: %s", checking.c_str()); |
defrost | 23:cb8522185c56 | 527 | DBG("result ignored: %d", result) |
samux | 1:fb4494783863 | 528 | attach_rx(true); |
samux | 1:fb4494783863 | 529 | return -1; |
samux | 1:fb4494783863 | 530 | } else if (wifi.readable()) { |
samux | 1:fb4494783863 | 531 | read = wifi.getc(); |
samux | 1:fb4494783863 | 532 | if ( read != '\r' && read != '\n') { |
samux | 1:fb4494783863 | 533 | checking += read; |
samux | 1:fb4494783863 | 534 | found = checking.find(ACK); |
samux | 1:fb4494783863 | 535 | if (found != string::npos) { |
samux | 1:fb4494783863 | 536 | wait(0.01); |
samux | 1:fb4494783863 | 537 | |
samux | 1:fb4494783863 | 538 | //We flush the buffer |
samux | 1:fb4494783863 | 539 | while (wifi.readable()) |
samux | 1:fb4494783863 | 540 | wifi.getc(); |
samux | 1:fb4494783863 | 541 | |
samux | 1:fb4494783863 | 542 | break; |
samux | 1:fb4494783863 | 543 | } |
defrost | 24:705480e2e482 | 544 | } |
samux | 1:fb4494783863 | 545 | } |
samux | 1:fb4494783863 | 546 | } |
defrost | 23:cb8522185c56 | 547 | DBG("check: %s", checking.c_str()); |
defrost | 23:cb8522185c56 | 548 | DBG("result: %d", result) |
samux | 1:fb4494783863 | 549 | attach_rx(true); |
samux | 1:fb4494783863 | 550 | return result; |
samux | 1:fb4494783863 | 551 | } |
samux | 1:fb4494783863 | 552 | |
samux | 1:fb4494783863 | 553 | //the user wants the result from the command (ACK == NULL, res != NULL) |
samux | 1:fb4494783863 | 554 | if ( res != NULL) { |
samux | 1:fb4494783863 | 555 | int i = 0; |
samux | 1:fb4494783863 | 556 | Timer timeout; |
samux | 1:fb4494783863 | 557 | timeout.start(); |
samux | 1:fb4494783863 | 558 | tmr.reset(); |
samux | 1:fb4494783863 | 559 | while (1) { |
samux | 1:fb4494783863 | 560 | if (timeout.read() > 2) { |
samux | 1:fb4494783863 | 561 | if (i == 0) { |
samux | 1:fb4494783863 | 562 | res = NULL; |
samux | 1:fb4494783863 | 563 | break; |
samux | 1:fb4494783863 | 564 | } |
samux | 1:fb4494783863 | 565 | res[i] = '\0'; |
defrost | 23:cb8522185c56 | 566 | DBG("user str 1: %s", res); |
samux | 1:fb4494783863 | 567 | |
samux | 1:fb4494783863 | 568 | break; |
samux | 1:fb4494783863 | 569 | } else { |
samux | 1:fb4494783863 | 570 | if (tmr.read_ms() > 300) { |
samux | 1:fb4494783863 | 571 | res[i] = '\0'; |
defrost | 23:cb8522185c56 | 572 | DBG("user str2: %s", res); |
samux | 1:fb4494783863 | 573 | |
samux | 1:fb4494783863 | 574 | break; |
samux | 1:fb4494783863 | 575 | } |
samux | 1:fb4494783863 | 576 | if (wifi.readable()) { |
samux | 1:fb4494783863 | 577 | tmr.start(); |
samux | 1:fb4494783863 | 578 | read = wifi.getc(); |
samux | 1:fb4494783863 | 579 | |
samux | 1:fb4494783863 | 580 | // we drop \r and \n |
samux | 1:fb4494783863 | 581 | if ( read != '\r' && read != '\n') { |
samux | 1:fb4494783863 | 582 | res[i++] = read; |
samux | 1:fb4494783863 | 583 | } |
samux | 1:fb4494783863 | 584 | } |
samux | 1:fb4494783863 | 585 | } |
samux | 1:fb4494783863 | 586 | } |
defrost | 23:cb8522185c56 | 587 | DBG("user str3: %s", res); |
samux | 1:fb4494783863 | 588 | } |
samux | 1:fb4494783863 | 589 | |
samux | 1:fb4494783863 | 590 | //We flush the buffer |
samux | 1:fb4494783863 | 591 | while (wifi.readable()) |
samux | 1:fb4494783863 | 592 | wifi.getc(); |
samux | 1:fb4494783863 | 593 | |
samux | 1:fb4494783863 | 594 | attach_rx(true); |
defrost | 23:cb8522185c56 | 595 | DBG("result: %d", result) |
samux | 1:fb4494783863 | 596 | return result; |
defrost | 30:2c704a72d88a | 597 | } |
defrost | 30:2c704a72d88a | 598 | |
defrost | 30:2c704a72d88a | 599 | int Wifly::checkNetworkStatus(void){ |
defrost | 30:2c704a72d88a | 600 | int status = 0; |
defrost | 30:2c704a72d88a | 601 | char rcv[128]; |
defrost | 31:2846355deb7e | 602 | unsigned int ConnectionReg; |
defrost | 30:2c704a72d88a | 603 | |
defrost | 31:2846355deb7e | 604 | if(!sendCommand("show c\r", NULL, rcv, 5000)){ |
defrost | 30:2c704a72d88a | 605 | status = 0; |
defrost | 30:2c704a72d88a | 606 | // the sendCommand function quits command mode if there is an error |
defrost | 30:2c704a72d88a | 607 | }else{ |
defrost | 30:2c704a72d88a | 608 | // check the response: |
defrost | 31:2846355deb7e | 609 | sscanf(rcv, "%x%*s", &ConnectionReg); |
defrost | 31:2846355deb7e | 610 | if(((ConnectionReg & CC_ASSOCIATION)>0) && ((ConnectionReg & CC_AUTHENTICATION)>0)){ |
defrost | 31:2846355deb7e | 611 | // Associated and Authenticated: |
defrost | 31:2846355deb7e | 612 | status = 3; |
defrost | 31:2846355deb7e | 613 | }else if((ConnectionReg & CC_ASSOCIATION)>0){ |
defrost | 31:2846355deb7e | 614 | // Associated: |
defrost | 31:2846355deb7e | 615 | status = 1; |
defrost | 31:2846355deb7e | 616 | }else if((ConnectionReg & CC_AUTHENTICATION)>0){ |
defrost | 31:2846355deb7e | 617 | // Athenticated: |
defrost | 31:2846355deb7e | 618 | status = 2; |
defrost | 31:2846355deb7e | 619 | }else{ |
defrost | 31:2846355deb7e | 620 | // Disconnected: |
defrost | 31:2846355deb7e | 621 | status = 0; |
defrost | 31:2846355deb7e | 622 | } |
defrost | 31:2846355deb7e | 623 | INFO("Wifly Check network response: 0x%x, Status: %d", ConnectionReg, status); |
defrost | 30:2c704a72d88a | 624 | exit(); // Quit command mode |
defrost | 30:2c704a72d88a | 625 | } |
defrost | 30:2c704a72d88a | 626 | |
defrost | 30:2c704a72d88a | 627 | return status; |
defrost | 32:ab206f7f5090 | 628 | } |
defrost | 32:ab206f7f5090 | 629 | |
defrost | 32:ab206f7f5090 | 630 | void Wifly::sleep(void){ |
defrost | 32:ab206f7f5090 | 631 | // This function puts the module to sleep: |
defrost | 32:ab206f7f5090 | 632 | sendCommand("sleep\r", NULL); |
defrost | 32:ab206f7f5090 | 633 | // It will wake up from sleep if any characters are sent to it. |
defrost | 32:ab206f7f5090 | 634 | return; |
samux | 1:fb4494783863 | 635 | } |