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fajar_rizhi
May 31st, 2013
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  1. <form>
  2. <input type='text' name='nama1' />
  3. </form>
  4. <?php
  5. namespace phpSerial;
  6.  
  7. define("SERIAL_DEVICE_NOTSET", 0);
  8. define("SERIAL_DEVICE_SET", 1);
  9. define("SERIAL_DEVICE_OPENED", 2);
  10.  
  11. /**
  12. * Serial port control class
  13. *
  14. * THIS PROGRAM COMES WITH ABSOLUTELY NO WARANTIES !
  15. * USE IT AT YOUR OWN RISKS !
  16. *
  17. * Changes added by Rizwan Kassim <[email protected]> for OSX functionality
  18. * default serial device for osx devices is /dev/tty.serial for machines with a built in serial device
  19. *
  20. * @author Rémy Sanchez <[email protected]>
  21. * @thanks Aurélien Derouineau for finding how to open serial ports with windows
  22. * @thanks Alec Avedisyan for help and testing with reading
  23. * @thanks Jim Wright for OSX cleanup/fixes.
  24. * @copyright under GPL 2 licence
  25. */
  26.  
  27. class phpSerial
  28. {
  29. public $_device = null;
  30. public $_windevice = null;
  31. public $_dHandle = null;
  32. public $_dState = SERIAL_DEVICE_NOTSET;
  33. public $_buffer = "";
  34. public $_os = "";
  35.  
  36. /**
  37. * This var says if buffer should be flushed by sendMessage (true) or manualy (false)
  38. *
  39. * @var bool
  40. */
  41. public $autoflush = true;
  42.  
  43. /**
  44. * Constructor. Perform some checks about the OS and setserial
  45. *
  46. * @return phpSerial
  47. */
  48. public function phpSerial ()
  49. {
  50. setlocale(LC_ALL, "en_US");
  51.  
  52. $sysname = php_uname();
  53.  
  54. if (substr($sysname, 0, 5) === "Linux") {
  55. $this->_os = "linux";
  56.  
  57. if ($this->_exec("stty --version") === 0) {
  58. register_shutdown_function(array($this, "deviceClose"));
  59. } else {
  60. trigger_error("No stty availible, unable to run.", E_USER_ERROR);
  61. }
  62. } elseif (substr($sysname, 0, 6) === "Darwin") {
  63. $this->_os = "osx";
  64. // We know stty is available in Darwin.
  65. // stty returns 1 when run from php, because "stty: stdin isn't a
  66. // terminal"
  67. // skip this check
  68. // if($this->_exec("stty") === 0)
  69. // {
  70. register_shutdown_function(array($this, "deviceClose"));
  71. // }
  72. // else
  73. // {
  74. // trigger_error("No stty availible, unable to run.", E_USER_ERROR);
  75. // }
  76. } elseif (substr($sysname, 0, 7) === "Windows") {
  77. $this->_os = "windows";
  78. register_shutdown_function(array($this, "deviceClose"));
  79. } else {
  80. trigger_error("Host OS is neither osx, linux nor windows, unable to run.", E_USER_ERROR);
  81. exit();
  82. }
  83. }
  84.  
  85. //
  86. // OPEN/CLOSE DEVICE SECTION -- {START}
  87. //
  88.  
  89. /**
  90. * Device set function : used to set the device name/address.
  91. * -> linux : use the device address, like /dev/ttyS0
  92. * -> osx : use the device address, like /dev/tty.serial
  93. * -> windows : use the COMxx device name, like COM1 (can also be used
  94. * with linux)
  95. *
  96. * @param string $device the name of the device to be used
  97. * @return bool
  98. */
  99. public function deviceSet ($device)
  100. {
  101. if ($this->_dState !== SERIAL_DEVICE_OPENED) {
  102. if ($this->_os === "linux") {
  103. if (preg_match("@^COM(\d+):?$@i", $device, $matches)) {
  104. $device = "/dev/ttyS" . ($matches[1] - 1);
  105. }
  106.  
  107. if ($this->_exec("stty -F " . $device) === 0) {
  108. $this->_device = $device;
  109. $this->_dState = SERIAL_DEVICE_SET;
  110.  
  111. return true;
  112. }
  113. } elseif ($this->_os === "osx") {
  114. if ($this->_exec("stty -f " . $device) === 0) {
  115. $this->_device = $device;
  116. $this->_dState = SERIAL_DEVICE_SET;
  117.  
  118. return true;
  119. }
  120. } elseif ($this->_os === "windows") {
  121. if (preg_match("@^COM(\d+):?$@i", $device, $matches) and $this->_exec(exec("mode " . $device . " xon=on BAUD=9600")) === 0) {
  122. $this->_windevice = "COM" . $matches[1];
  123. $this->_device = "\\.\com" . $matches[1];
  124. $this->_dState = SERIAL_DEVICE_SET;
  125.  
  126. return true;
  127. }
  128. }
  129.  
  130. trigger_error("Specified serial port is not valid", E_USER_WARNING);
  131.  
  132. return false;
  133. } else {
  134. trigger_error("You must close your device before to set an other one", E_USER_WARNING);
  135.  
  136. return false;
  137. }
  138. }
  139.  
  140. /**
  141. * Opens the device for reading and/or writing.
  142. *
  143. * @param string $mode Opening mode : same parameter as fopen()
  144. * @return bool
  145. */
  146. public function deviceOpen ($mode = "r+b")
  147. {
  148. if ($this->_dState === SERIAL_DEVICE_OPENED) {
  149. trigger_error("The device is already opened", E_USER_NOTICE);
  150.  
  151. return true;
  152. }
  153.  
  154. if ($this->_dState === SERIAL_DEVICE_NOTSET) {
  155. trigger_error("The device must be set before to be open", E_USER_WARNING);
  156.  
  157. return false;
  158. }
  159.  
  160. if (!preg_match("@^[raw]\+?b?$@", $mode)) {
  161. trigger_error("Invalid opening mode : ".$mode.". Use fopen() modes.", E_USER_WARNING);
  162.  
  163. return false;
  164. }
  165.  
  166. $this->_dHandle = @fopen($this->_device, $mode);
  167.  
  168. if ($this->_dHandle !== false) {
  169. stream_set_blocking($this->_dHandle, 0);
  170. $this->_dState = SERIAL_DEVICE_OPENED;
  171.  
  172. return true;
  173. }
  174.  
  175. $this->_dHandle = null;
  176. trigger_error("Unable to open the device", E_USER_WARNING);
  177.  
  178. return false;
  179. }
  180.  
  181. /**
  182. * Closes the device
  183. *
  184. * @return bool
  185. */
  186. public function deviceClose ()
  187. {
  188. if ($this->_dState !== SERIAL_DEVICE_OPENED) {
  189. return true;
  190. }
  191.  
  192. if (fclose($this->_dHandle)) {
  193. $this->_dHandle = null;
  194. $this->_dState = SERIAL_DEVICE_SET;
  195.  
  196. return true;
  197. }
  198.  
  199. trigger_error("Unable to close the device", E_USER_ERROR);
  200.  
  201. return false;
  202. }
  203.  
  204. //
  205. // OPEN/CLOSE DEVICE SECTION -- {STOP}
  206. //
  207.  
  208. //
  209. // CONFIGURE SECTION -- {START}
  210. //
  211.  
  212. /**
  213. * Configure the Baud Rate
  214. * Possible rates : 110, 150, 300, 600, 1200, 2400, 4800, 9600, 38400,
  215. * 57600 and 115200.
  216. *
  217. * @param int $rate the rate to set the port in
  218. * @return bool
  219. */
  220. public function confBaudRate ($rate)
  221. {
  222. if ($this->_dState !== SERIAL_DEVICE_SET) {
  223. trigger_error("Unable to set the baud rate : the device is either not set or opened", E_USER_WARNING);
  224.  
  225. return false;
  226. }
  227.  
  228. $validBauds = array (
  229. 110 => 11,
  230. 150 => 15,
  231. 300 => 30,
  232. 600 => 60,
  233. 1200 => 12,
  234. 2400 => 24,
  235. 4800 => 48,
  236. 9600 => 96,
  237. 19200 => 19,
  238. 38400 => 38400,
  239. 57600 => 57600,
  240. 115200 => 115200
  241. );
  242.  
  243. if (isset($validBauds[$rate])) {
  244. if ($this->_os === "linux") {
  245. $ret = $this->_exec("stty -F " . $this->_device . " " . (int) $rate, $out);
  246. }
  247. if ($this->_os === "osx") {
  248. $ret = $this->_exec("stty -f " . $this->_device . " " . (int) $rate, $out);
  249. } elseif ($this->_os === "windows") {
  250. $ret = $this->_exec("mode " . $this->_windevice . " BAUD=" . $validBauds[$rate], $out);
  251. } else {
  252. return false;
  253. }
  254.  
  255. if ($ret !== 0) {
  256. trigger_error("Unable to set baud rate: " . $out[1], E_USER_WARNING);
  257.  
  258. return false;
  259. }
  260. }
  261. }
  262.  
  263. /**
  264. * Configure parity.
  265. * Modes : odd, even, none
  266. *
  267. * @param string $parity one of the modes
  268. * @return bool
  269. */
  270. public function confParity ($parity)
  271. {
  272. if ($this->_dState !== SERIAL_DEVICE_SET) {
  273. trigger_error("Unable to set parity : the device is either not set or opened", E_USER_WARNING);
  274.  
  275. return false;
  276. }
  277.  
  278. $args = array(
  279. "none" => "-parenb",
  280. "odd" => "parenb parodd",
  281. "even" => "parenb -parodd",
  282. );
  283.  
  284. if (!isset($args[$parity])) {
  285. trigger_error("Parity mode not supported", E_USER_WARNING);
  286.  
  287. return false;
  288. }
  289.  
  290. if ($this->_os === "linux") {
  291. $ret = $this->_exec("stty -F " . $this->_device . " " . $args[$parity], $out);
  292. } elseif ($this->_os === "osx") {
  293. $ret = $this->_exec("stty -f " . $this->_device . " " . $args[$parity], $out);
  294. } else {
  295. $ret = $this->_exec("mode " . $this->_windevice . " PARITY=" . $parity{0}, $out);
  296. }
  297.  
  298. if ($ret === 0) {
  299. return true;
  300. }
  301.  
  302. trigger_error("Unable to set parity : " . $out[1], E_USER_WARNING);
  303.  
  304. return false;
  305. }
  306.  
  307. /**
  308. * Sets the length of a character.
  309. *
  310. * @param int $int length of a character (5 <= length <= 8)
  311. * @return bool
  312. */
  313. public function confCharacterLength ($int)
  314. {
  315. if ($this->_dState !== SERIAL_DEVICE_SET) {
  316. trigger_error("Unable to set length of a character : the device is either not set or opened", E_USER_WARNING);
  317.  
  318. return false;
  319. }
  320.  
  321. $int = (int) $int;
  322. if ($int < 5) {
  323. $int = 5;
  324. } elseif ($int > 8) {
  325. $int = 8;
  326. }
  327.  
  328. if ($this->_os === "linux") {
  329. $ret = $this->_exec("stty -F " . $this->_device . " cs" . $int, $out);
  330. } elseif ($this->_os === "osx") {
  331. $ret = $this->_exec("stty -f " . $this->_device . " cs" . $int, $out);
  332. } else {
  333. $ret = $this->_exec("mode " . $this->_windevice . " DATA=" . $int, $out);
  334. }
  335.  
  336. if ($ret === 0) {
  337. return true;
  338. }
  339.  
  340. trigger_error("Unable to set character length : " .$out[1], E_USER_WARNING);
  341.  
  342. return false;
  343. }
  344.  
  345. /**
  346. * Sets the length of stop bits.
  347. *
  348. * @param float $length the length of a stop bit. It must be either 1,
  349. * 1.5 or 2. 1.5 is not supported under linux and on some computers.
  350. * @return bool
  351. */
  352. public function confStopBits ($length)
  353. {
  354. if ($this->_dState !== SERIAL_DEVICE_SET) {
  355. trigger_error("Unable to set the length of a stop bit : the device is either not set or opened", E_USER_WARNING);
  356.  
  357. return false;
  358. }
  359.  
  360. if ($length != 1 and $length != 2 and $length != 1.5 and !($length == 1.5 and $this->_os === "linux")) {
  361. trigger_error("Specified stop bit length is invalid", E_USER_WARNING);
  362.  
  363. return false;
  364. }
  365.  
  366. if ($this->_os === "linux") {
  367. $ret = $this->_exec("stty -F " . $this->_device . " " . (($length == 1) ? "-" : "") . "cstopb", $out);
  368. } elseif ($this->_os === "osx") {
  369. $ret = $this->_exec("stty -f " . $this->_device . " " . (($length == 1) ? "-" : "") . "cstopb", $out);
  370. } else {
  371. $ret = $this->_exec("mode " . $this->_windevice . " STOP=" . $length, $out);
  372. }
  373.  
  374. if ($ret === 0) {
  375. return true;
  376. }
  377.  
  378. trigger_error("Unable to set stop bit length : " . $out[1], E_USER_WARNING);
  379.  
  380. return false;
  381. }
  382.  
  383. /**
  384. * Configures the flow control
  385. *
  386. * @param string $mode Set the flow control mode. Availible modes :
  387. * -> "none" : no flow control
  388. * -> "rts/cts" : use RTS/CTS handshaking
  389. * -> "xon/xoff" : use XON/XOFF protocol
  390. * @return bool
  391. */
  392. public function confFlowControl ($mode)
  393. {
  394. if ($this->_dState !== SERIAL_DEVICE_SET) {
  395. trigger_error("Unable to set flow control mode : the device is either not set or opened", E_USER_WARNING);
  396.  
  397. return false;
  398. }
  399.  
  400. $linuxModes = array(
  401. "none" => "clocal -crtscts -ixon -ixoff",
  402. "rts/cts" => "-clocal crtscts -ixon -ixoff",
  403. "xon/xoff" => "-clocal -crtscts ixon ixoff"
  404. );
  405. $windowsModes = array(
  406. "none" => "xon=off octs=off rts=on",
  407. "rts/cts" => "xon=off octs=on rts=hs",
  408. "xon/xoff" => "xon=on octs=off rts=on",
  409. );
  410.  
  411. if ($mode !== "none" and $mode !== "rts/cts" and $mode !== "xon/xoff") {
  412. trigger_error("Invalid flow control mode specified", E_USER_ERROR);
  413.  
  414. return false;
  415. }
  416.  
  417. if ($this->_os === "linux") {
  418. $ret = $this->_exec("stty -F " . $this->_device . " " . $linuxModes[$mode], $out);
  419. } elseif ($this->_os === "osx") {
  420. $ret = $this->_exec("stty -f " . $this->_device . " " . $linuxModes[$mode], $out);
  421. } else {
  422. $ret = $this->_exec("mode " . $this->_windevice . " " . $windowsModes[$mode], $out);
  423. }
  424. if ($ret === 0) {
  425. return true;
  426. } else {
  427. trigger_error("Unable to set flow control : " . $out[1], E_USER_ERROR);
  428.  
  429. return false;
  430. }
  431. }
  432.  
  433. /**
  434. * Sets a setserial parameter (cf man setserial)
  435. * NO MORE USEFUL !
  436. * -> No longer supported
  437. * -> Only use it if you need it
  438. *
  439. * @param string $param parameter name
  440. * @param string $arg parameter value
  441. * @return bool
  442. */
  443. public function setSetserialFlag ($param, $arg = "")
  444. {
  445. if (!$this->_ckOpened()) {
  446. return false;
  447. }
  448.  
  449. $return = exec("setserial " . $this->_device . " " . $param . " " . $arg . " 2>&1");
  450.  
  451. if ($return{0} === "I") {
  452. trigger_error("setserial: Invalid flag", E_USER_WARNING);
  453.  
  454. return false;
  455. } elseif ($return{0} === "/") {
  456. trigger_error("setserial: Error with device file", E_USER_WARNING);
  457.  
  458. return false;
  459. } else {
  460. return true;
  461. }
  462. }
  463.  
  464. //
  465. // CONFIGURE SECTION -- {STOP}
  466. //
  467.  
  468. //
  469. // I/O SECTION -- {START}
  470. //
  471.  
  472. /**
  473. * Sends a string to the device
  474. *
  475. * @param string $str string to be sent to the device
  476. * @param float $waitForReply time to wait for the reply (in seconds)
  477. */
  478. public function sendMessage ($str, $waitForReply = 0.1)
  479. {
  480. $this->_buffer .= $str;
  481.  
  482. if ($this->autoflush === true) {
  483. $this->serialflush();
  484. }
  485.  
  486. usleep((int) ($waitForReply * 1000000));
  487. }
  488.  
  489. /**
  490. * Reads the port until no new datas are availible, then return the content.
  491. *
  492. * @pararm int $count number of characters to be read (will stop before
  493. * if less characters are in the buffer)
  494. * @return string
  495. */
  496. public function readPort ($count = 0)
  497. {
  498. if ($this->_dState !== SERIAL_DEVICE_OPENED) {
  499. trigger_error("Device must be opened to read it", E_USER_WARNING);
  500.  
  501. return false;
  502. }
  503.  
  504. if ($this->_os === "linux" || $this->_os === "osx") {
  505. // Behavior in OSX isn't to wait for new data to recover, but just grabs what's there!
  506. // Doesn't always work perfectly for me in OSX
  507. $content = "";
  508. $i = 0;
  509.  
  510. if ($count !== 0) {
  511. do {
  512. if ($i > $count) {
  513. $content .= fread($this->_dHandle, ($count - $i));
  514. } else {
  515. $content .= fread($this->_dHandle, 128);
  516. }
  517. } while (($i += 128) === strlen($content));
  518. } else {
  519. do {
  520. $content .= fread($this->_dHandle, 128);
  521. } while (($i += 128) === strlen($content));
  522. }
  523.  
  524. return $content;
  525. } elseif ($this->_os === "windows") {
  526. // Windows port reading procedures still buggy
  527. $content = "";
  528. $i = 0;
  529.  
  530. if ($count !== 0) {
  531. do {
  532. if ($i > $count) {
  533. $content .= fread($this->_dHandle, ($count - $i));
  534. } else {
  535. $content .= fread($this->_dHandle, 128);
  536. }
  537. } while (($i += 128) === strlen($content));
  538. } else {
  539. do {
  540. $content .= fread($this->_dHandle, 128);
  541. } while (($i += 128) === strlen($content));
  542. }
  543.  
  544. return $content;
  545. }
  546.  
  547. return false;
  548. }
  549.  
  550. /**
  551. * Flushes the output buffer
  552. * Renamed from flush for osx compat. issues
  553. *
  554. * @return bool
  555. */
  556. public function serialflush ()
  557. {
  558. if (!$this->_ckOpened()) {
  559. return false;
  560. }
  561.  
  562. if (fwrite($this->_dHandle, $this->_buffer) !== false) {
  563. $this->_buffer = "";
  564.  
  565. return true;
  566. } else {
  567. $this->_buffer = "";
  568. trigger_error("Error while sending message", E_USER_WARNING);
  569.  
  570. return false;
  571. }
  572. }
  573.  
  574. //
  575. // I/O SECTION -- {STOP}
  576. //
  577.  
  578. //
  579. // INTERNAL TOOLKIT -- {START}
  580. //
  581.  
  582. public function _ckOpened()
  583. {
  584. if ($this->_dState !== SERIAL_DEVICE_OPENED) {
  585. trigger_error("Device must be opened", E_USER_WARNING);
  586.  
  587. return false;
  588. }
  589.  
  590. return true;
  591. }
  592.  
  593. public function _ckClosed()
  594. {
  595. if ($this->_dState !== SERIAL_DEVICE_CLOSED) {
  596. trigger_error("Device must be closed", E_USER_WARNING);
  597.  
  598. return false;
  599. }
  600.  
  601. return true;
  602. }
  603.  
  604. public function _exec($cmd, &$out = null)
  605. {
  606. $desc = array(
  607. 1 => array("pipe", "w"),
  608. 2 => array("pipe", "w")
  609. );
  610.  
  611. $proc = proc_open($cmd, $desc, $pipes);
  612.  
  613. $ret = stream_get_contents($pipes[1]);
  614. $err = stream_get_contents($pipes[2]);
  615.  
  616. fclose($pipes[1]);
  617. fclose($pipes[2]);
  618.  
  619. $retVal = proc_close($proc);
  620.  
  621. if (func_num_args() == 2) {
  622. $out = array($ret, $err);
  623. }
  624.  
  625. return $retVal;
  626. }
  627.  
  628. //
  629. // INTERNAL TOOLKIT -- {STOP}
  630. //
  631. }
  632. ?>
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