speeded up EEPROM read on 10389 (system i2c bus), hard-wired path for autocampars.xml

src/php_top/i2c.php

@@ -234,6 +234,9 @@ switch ($cmd) {
 	case "fromEEPROM" :
 		if (($EEPROM_bus0 == 4) || ($EEPROM_bus0 == 5)) { // using FPGA PIO bus (bus=1 in NC353) for IMU, GPS and such, bus = 5 - 10389 eeprom
 			$rslt=i2c_read256b(0xa0+($EEPROM_chn * 2), $EEPROM_bus0);
+			if (!is_string($rslt)){
+				break; // will report error 
+			}
 			$zero=strpos($rslt,chr(0));
 			if ($zero!==false) $rslt=substr($rslt,0, $zero);
 			if (substr($rslt,0,5)=="<?xml") {

src/php_top/i2c_include.php

@@ -418,15 +418,24 @@ function i2c_read256b($slave = 0xa0, $bus = 4, $extrausec = 0) { // will read 25
 	}
 	if ($bus == 2) { // System i2c in nc393 (was 5)
 		$sa7 = $slave >> 1;
-		for($i = 0; $i < 256; $i ++)
+		/* // very slow
+		for($i = 0; $i < 256; $i ++) {
 			exec ( 'i2cget -y 0 ' . $sa7 . ' ' . $i . ' b', $i2c_data, $return );
 			if ($return != 0)
 				return - 1;
+			}
 		$data == "";
 		foreach ($i2c_data as $c) $data.=chr($c);
+		*/
+		exec('i2cdump -y 0 ' . $sa7 . ' b', $i2c_data, $return );
+		if ($return != 0) return - 1;
+		// Extract data from dump table
+		$line="";
+		for ($j=0; $j<16; $j++) $line .= substr($i2c_data[$j+1],4,48);
+		$data == "";
+		foreach (explode(' ',$line) as $e) $data.=chr(intval($e,16));
 		return $data;
 	}
-	
 	$i2c_fn = '/dev/xi2c8' . (($bus == 0) ? '' : '_aux');
 	$i2c = fopen ( $i2c_fn, 'r' );
 	fseek ( $i2c, $slave * 128 ); // 256 per slave, but slave are only even

src/php_top/parsedit.php

@@ -1468,15 +1468,18 @@ function getDescription ($compositeName,$descriptions){
 
 */
 function getParDescriptions($autocampars) {
+  /*	
   $file=file($autocampars);
   $path="";
-  foreach ($file as $line) if (strpos($line,'$configPath')!==false ){
+  foreach ($file as $line) if ((strpos($line,'$configPath')!==false ) || ((strpos($line,"'configPath'")!==false)){
     $name= strtok ($line,'"');
     if (strpos ($name,'//')===false) {
       $path=strtok ('"');
       break;
     }
   }
+  */
+  $path='/etc/elphel393/autocampars0.xml';
   $path = str_replace("0.",strval($GLOBALS [sensor_port]).".",$path); // NC393: here it does not really matter
   $xml = simplexml_load_file($path);
   $descriptions=array();