Remove i2c related code

*!  along with this program.  If not, see <http://www.gnu.org/licenses/>.

*! -----------------------------------------------------------------------------**

*/

// require 'i2c.inc';

// include 'show_source.inc';

$debug=false;

$BUS=1; // 1 - 10369, 0 - 10359 (sensor)

$slaveAddrVCS3312=     0x2d;

$i2c_Page_Connection=      0x00; // When written to $i2c_CurrentPage, makes registers 0..0xf control corresponding output (0..0xf) source (input number)

                                 // bit 4 (+0x10) - turn output off, bits 3:0 - source

$i2c_Page_InputISE=        0x10; // When written to $i2c_CurrentPage, makes registers 0..0xf control corresponding input (0..0xf) ISE (equalization):

                                 // Bits 5:4 ISE short: 0 - off, 1 - minimal, 2 - moderate, 3 - maximal; bits 3:2 ISE medium, bits 1:0 ISE Long time constant

$i2c_Page_InputState=      0x11; // When written to $i2c_CurrentPage, makes registers 0..0xf control corresponding input (0..0xf) enable, polarity and termination (default 6)

                                 // Bit 2 (+4) Terminate to VDD ( 0 - connect,  1 - do not connect) - dedicated (0..7) inputs only

                                 // Bit 1 (+2) Input power (0 - on, 1 - off)

                                 // Bit 0 (+1) Invert signal at input 

///$i2c_InputStateData=       0x04; // terminated,enabled, not inverted

$i2c_InputStateData=       0x00; // terminated,disabled, not inverted

$i2c_Page_InputLOS=        0x12; // When written to $i2c_CurrentPage, makes registers 0..0xf control corresponding input (0..0xf) LOS (loss of signal) threshold

                                 // Bits 2:0 - level in mV for dedicated(bidirectional) inputs: 0,1,6,7 - unused, 2 - 150(170), 3 - 200(230), 4 - 250(280), 5 - 300(330)

$i2c_Page_OutputPreLong=   0x20; // When written to $i2c_CurrentPage, makes registers 0..0xf control corresponding output (0..0xf) long time constant pre-emphasis

                                 // Bits 6:3 Pre-Emphasis level (0x0 - off, 0x1 - min, 0xf - max - 0..6dB), bits 2:0 - Pre-emphasis decay (0x0 - fastest, 0x7 - slowest) in 500..1500 ps range

$i2c_Page_OutputPreShort=  0x21; // When written to $i2c_CurrentPage, makes registers 0..0xf control corresponding output (0..0xf) short time constant pre-emphasis

                                 // Bits 6:3 Pre-Emphasis level (0x0 - off, 0x1 - min, 0xf - max - 0..6dB), bits 2:0 - Pre-emphasis decay (0x0 - fastest, 0x7 - slowest) in 30..500 ps range

$i2c_Page_OutputLevel=     0x22; // When written to $i2c_CurrentPage, makes registers 0..0xf control corresponding output (0..0xf) short time constant pre-emphasis

                                 // Bits 3:0 - peak-to-peak 0,1,0xe,0xf - unused, 0x2-405mV,0x3-425V,0x4-455mV,0x5-485mV,0x6-520mV,0x7-555mV,0x8-605mV,0x9-655mV,0xa-720mV,0xb-790mV,0xc-890mV,0xd-990mV (+3.3VDC required)

                                 // bit 4 (+0x10) - for 8-15 used as inputs only: terminate inputs 8..15 to VDDIO-0.7V

$i2c_Page_OutputState=     0x23; // When written to $i2c_CurrentPage, makes registers 0..0xf control corresponding output (0..0xf) OOB signaling and output polarity

                                 // bits 4:1 - operation mode: 0xa  - inverted, 0x5 - normal, 0x0 - suppressed

                                 // bit 0 - OOB control:     1 - enable LOS forwarding, 0 - ignore LOS

$i2c_Page_ChannelStatus=   0xf0; // When written to $i2c_CurrentPage, makes registers 0..0xf monitor corresponding input (0..0xf) LOS status

                                 // bit 0 - LOS status: 1 - LOS detected (loss of signal), 0 - signal present (input has to be enabled, otherwise 0 is read)

                                 // when reading from address 0x10 of this page:

                                 //  bit 0 - value of STAT0

                                 //  bit 1 - value of STAT1

$i2c_Page_Status0Configure=0x80; // When written to $i2c_CurrentPage, makes registers 0..0xf control selected input LOS to be OR-ed to STAT0 output pin (and bit)

                                 // bit 0 : 1 - OR this input channel LOS status to STAT0

$i2c_Page_Status1Configure=0x81; // When written to $i2c_CurrentPage, makes registers 0..0xf control selected input LOS to be OR-ed to STAT1 output pin (and bit)

                                 // bit 0 : 1 - OR this input channel LOS status to STAT1

$i2c_GlobalConnection=     0x50; // Bit 4 (+0x10) - disable all outputs, bits 3:0 - input number to connect to all outputs

$i2c_GlobalInputISE=       0x51; // Bits 5:4 ISE short: 0 - off, 1 - minimal, 2 - moderate, 3 - maximal; bits 3:2 ISE medium, bits 1:0 ISE Long time constant

$i2c_GlobalInputState=     0x52; // Bit 2 (+4) - terminate input to VDD (0..7 only) 0-connect, 1 Normal; Bit 1 (+2) Input power off (0 - On, 1 - Off) bit0 (+1): Input polarity: 1 - inverted, 0 - normal 

$i2c_GlobalInputLOS=       0x53; // Bits 2:0 - level in mV for dedicated(bidirectional) inputs: 0,1,6,7 - unused, 2 - 150(170), 3 - 200(230), 4 - 250(280), 5 - 300(330)

$i2c_GlobalOutputPreLong=  0x54; // Bits 6:3 Pre-Emphasis level (0x0 - off, 0x1 - min, 0xf - max - 0..6dB), bits 2:0 - Pre-emphasis decay (0x0 - fastest, 0x7 - slowest) in 500..1500 ps range

$i2c_GlobalOutputPreShort= 0x55; // Bits 6:3 Pre-Emphasis level (0x0 - off, 0x1 - min, 0xf - max - 0..6dB), bits 2:0 - Pre-emphasis decay (0x0 - fastest, 0x7 - slowest) in 30..500 ps range

$i2c_GlobalOutputLevel=    0x56; // Bits 3:0 - peak-to-peak 0,1,0xe,0xf - unused, 0x2-405mV,0x3-425V,0x4-455mV,0x5-485mV,0x6-520mV,0x7-555mV,0x8-605mV,0x9-655mV,0xa-720mV,0xb-790mV,0xc-890mV,0xd-990mV (+3.3VDC required)

                                 // bit 4 (+0x10) terminate inputs 8..15 to VDDIO-0.7V

$i2c_GlobalOutputState=    0x57; // +1 (bit 0) - LOS, +0x15 - inverted, 0xa0 - normal, +0 - "Common mode" ?

$i2c_GlobalOutputStateData=0x0b; // No inversion, enable OOB forwarding on all channels

$i2c_Status0=              0x58; // Bit 0 - selected for Status0 chanel LOS on

$i2c_Status1=              0x59; // Bit 0 - selected for Status1 chanel LOS on // Which channel LOS to show on Status1 output/bit

$i2c_CoreConfiguration=    0x75;

$i2c_CoreConfigurationData= 0x18; // default 0x18 - 0x10 - leftEn, 0x8 - rightEn, 0x4 - DNU, 0x2 - BufferForceOn, 0x1 - Config polarity

$i2c_CoreConfigurationDataF=0x19; // default with inverted Config polarity (freeze update)

$i2c_SlaveAddress=         0x78; // programmed only, not hardwired

$i2c_InterfaceMode=        0x79;

$i2c_InterfaceModeData=    0x02; // i2c (1 - 4-wire)

$i2c_SoftwareReset=        0x7a;

$i2c_SoftwareResetData=    0x10; // to reset, 0 - normal

$i2c_CurrentPage=          0x7f;

$vsc_sysfs_dir = '/sys/devices/soc0/amba@0/e0004000.ps7-i2c/i2c-0/0-0001';

$connections=array(); // pairs, first index< second

// $channels=array(

//                   array('in'=>10,  'out'=> 3, 'name'=>'host1', 'connector'=> 1),

//                   array('in'=> 3,  'out'=>10, 'name'=>'host2', 'connector'=> 2),

//                   array('in'=> 0,  'out'=> 5, 'name'=>'host3', 'connector'=> 3),

//                   array('in'=> 4,  'out'=> 4, 'name'=>'host4', 'connector'=> 4),

//                   array('in'=> 9,  'out'=> 0, 'name'=>'host5', 'connector'=> 5),

//                   array('in'=> 7,  'out'=> 9, 'name'=>'host6', 'connector'=> 6),

//                   array('in'=>11,  'out'=> 1, 'name'=>'ssd1',  'connector'=> 7),

//                   array('in'=> 8,  'out'=> 6, 'name'=>'ssd2',  'connector'=> 8),

//                   array('in'=> 5,  'out'=>11, 'name'=>'ssd3',  'connector'=> 9),

//                   array('in'=> 2,  'out'=> 2, 'name'=>'ssd4',  'connector'=>10),

//                   array('in'=> 1,  'out'=> 8, 'name'=>'ssd5',  'connector'=>11));

$pcb_connections = array(

		'ESATA_A' => 'A',

								array('FROM' => 'ESATA_A', 'TO' => 'SSD_A'))

);

// $channels=array(

// 		array('in'=> 12, 'out'=> 8,  'name'=>'A', 'connector'=> 'ESATA_A'),

//         array('in'=> 13, 'out'=> 9,  'name'=>'B', 'connector'=> ''),

//         array('in'=> 14, 'out'=> 10, 'name'=>'C', 'connector'=> 'ESATA_B'),

//         array('in'=> 15, 'out'=> 11, 'name'=>'D', 'connector'=> ''),

//         array('in'=> 8,  'out'=> 12, 'name'=>'E', 'connector'=> 'SSD_A'),

//         array('in'=> 9,  'out'=> 13, 'name'=>'F', 'connector'=> 'SSD_B'),

//         array('in'=> 10, 'out'=> 14, 'name'=>'G', 'connector'=> 'ZYNQ_A'),

//         array('in'=> 11, 'out'=> 15, 'name'=>'H', 'connector'=> 'ZYNQ_B'));

/** Paths to parameters in sysfs */

$param_paths = array(

		'input_ISE_short'        => $vsc_sysfs_dir . '/input_ISE_short/',

$port_channel_input['type']  = 'out';

if ($init) {

 	$port_ise[-1]=         array('short'=>0,'medium'=>0,'long'=>0);

// 	$port_input_state[-1]= array('terminate'=>0,'invert'=>0); // change to no termination?

	$port_ise[-1]=         array('short'=>0,'medium'=>0,'long'=>0);

	$port_los[-1]=         array('level'=>4); // 250 mv

	$port_pre_long[-1]=    array('level'=>0,'decay'=>0);

	$port_pre_short[-1]=   array('level'=>0,'decay'=>0);

// 	$port_out_level[-1]=   array('level'=>6);

// 	$port_out_state[-1]=   array('mode'=>5,'oob'=>1);

	// set the value that the register has after reset 

	$vals = array();

	$port_out_state[-1] = array('mode' => $vals, 'oob' => 1);

}

$SA=$slaveAddrVCS3312<<8;

update_chn_from_sysfs();

if (isset($_GET['list']))

	listSettings();

// $activeOutputs = array(false, false, false, false, false, false, false, false);

// $activeOutputs = array(	$port_num['A']['out'] => false,

// 						$port_num['B']['out'] => false,

// 						$port_num['C']['out'] => false,

// 						$port_num['D']['out'] => false,

// 						$port_num['E']['out'] => false,

// 						$port_num['F']['out'] => false,

// 						$port_num['G']['out'] => false,

// 						$port_num['H']['out'] => false

// );

foreach ($port_num as $pn) {

	$activeOutputs[$pn['out']] = false;

	$activeInputs[$pn['in']] = false;

};

// $activeInputs = array(false, false, false, false, false, false, false, false);

// $activeInputs = array(	$port_num['A']['in'] => false,

// 						$port_num['B']['in'] => false,

// 						$port_num['C']['in'] => false,

// 						$port_num['D']['in'] => false,

// 						$port_num['E']['in'] => false,

// 						$port_num['F']['in'] => false,

// 						$port_num['G']['in'] => false,

// 						$port_num['H']['in'] => false

// );

foreach ($connections as $connection) {

	$activeOutputs[$channels[$connection[0]]['out']] = true;

	$activeOutputs[$channels[$connection[1]]['out']] = true;

	}

}

function readCurrentState_old(){

 global $debug, $i2c_InterfaceMode,$i2c_InterfaceModeData,$SA;

 global $i2c_CurrentPage,$activeInputs,$activeOutputs;

 global $port_ise,$port_input_state,$port_los,$port_pre_long,$port_pre_short,$port_out_level;

 global $port_out_state,$port_channel_status,$port_channel_input;

 global $i2c_Page_InputISE, $i2c_Page_InputState,$i2c_Page_InputLOS,$i2c_Page_OutputPreLong,$i2c_Page_OutputPreShort;

 global $i2c_Page_OutputLevel, $i2c_Page_OutputState,$i2c_Page_ChannelStatus,$i2c_Page_Connection;

    if ($debug) echo '<!-- setting i2c mode (writing 0x'.dechex($i2c_InterfaceModeData).' to 0x'.dechex($SA | $i2c_InterfaceMode).' -->'."\n";

    i2c_send_or_die($i2c_InterfaceMode,$i2c_InterfaceModeData); // set i2c mode

// Read ISE

    if ($debug) echo "<!-- reading ISE -->\n";

    i2c_send_or_die($i2c_CurrentPage,$i2c_Page_InputISE);

    for($index=0;$index<12;$index++) {

      $data=i2c_get_or_die($index);

      if ($debug) echo "<!-- [".$index."] => ".$data." -->\n";

      $port_ise[$index]=array(

       'short'=>($data>>4)&3,

       'medium'=>($data>>2)&3,

       'long'=>($data)&3);

    }

// Read InputState (program termination for inputs 8-11 during programming output

    if ($debug) echo "<!-- read InputState -->\n";

    i2c_send_or_die($i2c_CurrentPage,$i2c_Page_InputState); // select page 0x11  ($i2c_Page_InputState)

    for ($index=0;$index<12;$index++) {

      $data=i2c_get_or_die($index);

      if ($debug) echo "<!-- [".$index."] => ".$data." -->\n";

      $activeInputs[$index]=($data & 2) == 0;

      $port_input_state[$index]= array(

        'terminate'=>((($data>>2)&1)==0)?1:0,

        'invert'=>   ($data   )&1);

    }

    // read LOS

    if ($debug) echo "<!-- read LOS -->\n";

    i2c_send_or_die($i2c_CurrentPage,$i2c_Page_InputLOS);

    for($index=0;$index<12;$index++) {

      $data=i2c_get_or_die($index);

      if ($debug) echo "<!-- [".$index."] => ".$data." -->\n";

      $port_los[$index]=   array('level'=>$data);

    }

    // read pre-emphasis (long)

    if ($debug) echo "<!-- read pre-emphasis (long) -->\n";

    i2c_send_or_die($i2c_CurrentPage,$i2c_Page_OutputPreLong);

    for($index=0;$index<12;$index++) {

      $data=i2c_get_or_die($index);

      if ($debug) echo "<!-- [".$index."] => ".$data." -->\n";

      $port_pre_long[$index]=    array(

         'level'=>($data>>3)&0x0f,

         'decay'=> $data & 7);

    }

    // read pre-emphasis (short)

    if ($debug) echo "<!-- read pre-emphasis (short) -->\n";

    i2c_send_or_die($i2c_CurrentPage,$i2c_Page_OutputPreShort);

    for($index=0;$index<12;$index++) {

      $data=i2c_get_or_die($index);

      if ($debug) echo "<!-- [".$index."] => ".$data." -->\n";

      $port_pre_short[$index]=    array(

         'level'=>($data>>3)&0x0f,

         'decay'=> $data & 7);

    }

    // program output level and shared inputs (8..11) termination

    if ($debug) echo "<!-- read output level -->\n";

    i2c_send_or_die($i2c_CurrentPage,$i2c_Page_OutputLevel);

    for($index=0;$index<12;$index++) {

      $data=i2c_get_or_die($index);

      if ($debug) echo "<!-- [".$index."] => ".$data." -->\n";

      $port_out_level[$index]=    array(

         'level'=>$data& 0x0f);

     if ($index>=8){

      $data=i2c_get_or_die($index+4);

      if ($debug) echo "<!-- [".($index+4)."] => ".$data." -->\n";

       $port_input_state[$index]['terminate']=(($data & 0x10)==0)?0:1;

     }

    }

    // read Output State

    if ($debug) echo "<!-- read output state -->\n";

    i2c_send_or_die($i2c_CurrentPage,$i2c_Page_OutputState);

    for($index=0;$index<12;$index++) {

      $data=i2c_get_or_die($index);

      if ($debug) echo "<!-- [".$index."] => ".$data." -->\n";

      $port_out_state[$index]=    array(

         'mode'=>($data>>1)& 0x0f,

         'oob'=> $data & 1);

    }

    // read Channel Status

    if ($debug) echo "<!-- read channel status -->\n";

    i2c_send_or_die($i2c_CurrentPage,$i2c_Page_ChannelStatus);

    for($index=0;$index<12;$index++) {

      $data=i2c_get_or_die($index);

      if ($debug) echo "<!-- [".$index."] => ".$data." -->\n";

      $port_channel_status[$index]=    array(

         'los'=> $data & 1);

    }

   // Read connections

    if ($debug) echo "<!-- read connections -->\n";

    i2c_send_or_die($i2c_CurrentPage,$i2c_Page_Connection);

    for($index=0;$index<12;$index++) {

      $data=i2c_get_or_die($index);

      if ($debug) echo "<!-- [".$index."] => ".$data." -->\n";

      $port_channel_input[$index]=    array(

         'input'=> (($data & 0x10)==0)?($data & 0x0f):-1);

      $activeOutputs[$index]=($data & 0x10)==0;

    }

}

// TODO: add XML version

function values_los_dedicated($index){

   $values =array(

	return false;

}

function i2c_send_or_die($reg,$data){

   global $BUS,$SA,$debug,$dry;

   if ($debug) echo '<!--      '.($dry?'Simulating writing':'Writing').' to register 0x'.dechex($SA | $reg).', data=0x'.dechex($data)."-->\n";

   if ($dry) return;

   $rslt=i2c_send(8,$BUS,$SA | $reg, $data);

   if (!($rslt>0)) exitError('i2c write error to register 0x'.dechex($SA | $reg).', data=0x'.dechex($data).', returned '.$rslt.'\n'); // will exit

}

function i2c_get_or_die($reg){

   global $BUS,$SA,$debug,$dry;

   if ($debug) echo '<!--      '.($dry?'Simulating reading':'Reading').' register 0x'.dechex($SA | $reg)."-->\n";

   if ($dry) return 0;

//function i2c_receive($width,$bus,$a,$raw=0) {

   $rslt=i2c_receive(8,$BUS,$SA | $reg);

   if (!($rslt>=0)) exitError('i2c read error from register 0x'.dechex($SA | $reg).'\n'); // will exit

   return $rslt;

}

function getMultiVals($value){

   $aval=explode(':',$value);

   for ($i=0;$i<count($aval);$i++) $aval[$i]+=0;

	$disable_conn = 0x10;

	// disable all inputs and reset all connections first

// 	write_vals($GLOBALS['param_paths']['input_off'] . port_fn(), $disable_in);

// 	write_vals($GLOBALS['param_paths']['connections'] . port_fn(), $disable_conn);

	foreach ($connections as $connection) {

		if ($debug) {

			echo '<!-- connection in[' . $channels[$connection[0]]['in'] . '] -> out[' . $channels[$connection[1]]['out'] . ']-->' . "\n";

		}

	}

}

function programConnections_old($disableUnused){

  global $debug,$channels,$connections,$activeOutputs,$activeInputs,$BUS,$SA, $i2c_CurrentPage,$i2c_Page_Connection,$i2c_Page_InputState,$i2c_Page_OutputLevel; // in init mode all the unused connections will be powered down

    if ($debug) echo '<!-- selecting Page Connection -->'."\n";

    i2c_send_or_die($i2c_CurrentPage,$i2c_Page_Connection); // select page 0  ($i2c_Page_Connection)

    foreach ($connections as $connection) {

      if ($debug) {

        echo '<!-- connection in['.$channels[$connection[0]]['in'].'] -> out['.$channels[$connection[1]]['out'].']-->'."\n";

        echo '<!-- connection in['.$channels[$connection[1]]['in'].'] -> out['.$channels[$connection[0]]['out'].']-->'."\n";

      }

      i2c_send_or_die($channels[$connection[1]]['out'],$channels[$connection[0]]['in']);  // connect out to ssd to in from host

      i2c_send_or_die($channels[$connection[0]]['out'],$channels[$connection[1]]['in']);  // connect out to host to in from ssd

    }

// disable unused outputs

   if ($disableUnused) {

    $disabledConnection=0x10;

     for ($i=0;$i<count($activeOutputs);$i++) if (!$activeOutputs[$i]) {

       if ($debug) echo '<!-- disabling unused output'.$i.' -->'."\n";

       i2c_send_or_die($i, $disabledConnection);  // connect out to ssd to in from host

     }

   }

}

function listSettings(){