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Patrick Robbe authoredPatrick Robbe authored
main_pcie40_ul.c 7.55 KiB
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <time.h>
#include "altera_dma_regs.h"
const int CRC16_XMODEM_TABLE[] = {
0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef,
0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6,
0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de,
0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485,
0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d,
0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4,
0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc,
0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823,
0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b,
0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12,
0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a,
0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41,
0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49,
0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70,
0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78,
0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f,
0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067,
0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e,
0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256,
0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d,
0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405,
0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c,
0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634,
0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab,
0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3,
0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a,
0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92,
0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9,
0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1,
0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8,
0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0,
} ;
int crc_calc( int crc, unsigned int data ){
int byte1, byte2, byte3, byte4, crc_temp ;
byte1 = data & 0xFF;
byte2 = ( data & 0xFF00 ) >> 8;
byte3 = ( data & 0xFF0000 ) >> 16;
byte4 = ( data & 0xFF000000 ) >> 24;
crc_temp = (((crc)<<8)&0xff00) ^ CRC16_XMODEM_TABLE[(((crc)>>8)&0xff)^byte4] ;
crc_temp = (((crc_temp)<<8)&0xff00) ^ CRC16_XMODEM_TABLE[(((crc_temp)>>8)&0xff)^byte3] ;
crc_temp = (((crc_temp)<<8)&0xff00) ^ CRC16_XMODEM_TABLE[(((crc_temp)>>8)&0xff)^byte2] ;
crc_temp = (((crc_temp)<<8)&0xff00) ^ CRC16_XMODEM_TABLE[(((crc_temp)>>8)&0xff)^byte1] ;
return crc_temp;
}
int decode_data_wUL( unsigned int * data , unsigned int * ce , int * crc , int * run ,
int * bad , int *evn , int * retry , int * pctime , int * putime ) {
int magic;
int size, size_link;
int ix ;
int offset;
unsigned int exp_run, evenum, ctime, utime;
*crc = 0 ;
size = data[ ( *ce ) % DMASIZE ] ;
magic = data[ ( *ce + 1 ) % DMASIZE ] ;
// Check a new event is available in the memory
if( ( magic & 0xffff0000 ) != 0x7f7f0000 ){
// printf("Invalid magic number %.8x\n", magic );
return 0;
}
ix = *ce + 4;
ctime = data[ ix % DMASIZE ];
ix = *ce + 3;
evenum = data[ ix % DMASIZE ];
ix = *ce + 5;
utime = data[ ix % DMASIZE ];
ix = *ce + 2;
exp_run = data[ ix % DMASIZE ] >> 8 ;
// printf("exprun %.8x eve %d\n", exp_run, evenum );
if ( exp_run != *run ) { // it may be that the old data is still in memory
// printf( "RUN = %d\n", *run ) ;
return 0 ;
}
if ( evenum != *evn ) {
printf( "Bad event number %d %d %d %d %d %d\n" , evenum , *evn , ctime , utime , *pctime , *putime ) ;
}
*putime = utime ;
*pctime = ctime ;
offset = 8; // size of ROB header [words]
while( offset + 4 != size ){ // 4 = ROB trailer size
*crc = 0xffff ;
ix = *ce + offset;
size_link = data[ ix % DMASIZE ] & 0x00ffffff ;
if ( 0 == size_link ) return 0 ; // it could be that the memory was read
// while being filled
// Calculation of CRC
*crc = crc_calc( *crc, ctime );
*crc = crc_calc( *crc, evenum );
*crc = crc_calc( *crc, utime );
*crc = crc_calc( *crc, ( exp_run << 8 ) );
for ( ix = *ce + offset + 2 ; ix < *ce + offset + size_link -2; ++ix ) {
*crc = crc_calc( *crc, data[ ix % DMASIZE ] );
}
ix = *ce + 8 + size_link -2;
if( ( *crc & 0xffff ) != ( data[ ix % DMASIZE ] & 0xffff ) ){
// retry, could be that the event is not fully in memory
++(*retry) ;
if ( *retry < 3 ) return 0 ;
*bad = 1 ;
printf( "Error in CRC comparison calc %.8x : data %.8x\n" , *crc , data[ ix % DMASIZE ] );
}
offset += size_link;
if( offset + 4 > size ){
printf( "Invalid data size sum of link size %d size = %d\n" ,
offset + 4, size );
return -1 ;
}
}
return size ;
}
int main (int argc ,char** argv) {
// Stop trigger
system( "ssh vme \"resetft -80\"" ) ;
sleep( 2 ) ;
int res = ecs_open( 0 , 0 ) ;
if ( -1 == res ) printf("ERROR: Could not open device (BAR 0)\n") ;
else printf("SUCCESS: Device opened for DMA\n");
res = ecs_open( 0 , 2 ) ;
pcie40_b2dmabufferreset( 0 ) ;
// Start trigger
int run = 0 ;
FILE* fp;
char * ptr ;
char * tmp ;
fp = popen( "ssh vme \"trigft -80 pulse 100 -1\"" , "r" ) ;
char buf[1000] ;
char exp[] = "exp" ;
// sleep( 2 ) ;
while( fgets( buf , sizeof(buf) , fp ) != NULL ) {
// printf( "A= %d\n" , strncmp( exp , buf , 3 ) ) ;
// printf( strncmp( &buf[0] , 'exp' , 1 ) ) ;
tmp = strdup( buf ) ;
if ( strncmp( exp , buf , 3 ) == 0 ) {
//printf( '%s\n' , buf ) ;
// printf( "ICI\n" ) ;
ptr = strtok( tmp , " " ) ;
ptr = strtok( NULL , " " ) ;
ptr = strtok( NULL , " " ) ;
ptr = strtok( NULL , " " ) ;
// while ( ptr != NULL ) {
run = atoi( ptr ) ;
// ptr = strtok( NULL , " " ) ;
}
//}
}
pclose( fp ) ;
//sleep( 2 ) ;
// Read DMA
unsigned int * data ;
double time_spent ;
int retry ;
int bad ;
int evn ;
evn = 0 ;
bad = 0 ;
retry = 0 ;
int pctime, putime ;
pctime = 0 ;
putime = 0 ;
int i ;
int size, size_256, currentEventIndex, crc, nErr, nEvt, nRetry ;
currentEventIndex = 0 ;
nErr = 0 ;
nEvt = 0 ;
nRetry = 0 ;
clock_t begin = clock();
for ( i = 0 ; i < 1000000 ; ++i ) {
if ( ( nEvt % 10000 == 1 ) && ( size != 0 ) ) printf( "Event number %d\n", nEvt ) ;
res = pcie40_b2dmapointerread( 0 , &data ) ;
bad = 0 ;
size = decode_data_wUL( data , ¤tEventIndex , &crc , &run , &bad , &evn , &retry ,
&pctime , &putime ) ;
if ( 0 == size ) continue ;
if ( retry != 0 ) nRetry++ ;
retry = 0 ; if ( size == -1 ) {
nErr++ ;
continue ;
}
if ( bad == 1 ) nErr++ ;
evn++ ;
if( size % 8 != 0 ){
size_256 = ( size/8 + 1 )*8;
}
currentEventIndex = ( currentEventIndex + size_256 ) % DMASIZE ;
nEvt++ ;
}
clock_t end = clock();
time_spent += (double)(end - begin) / CLOCKS_PER_SEC;
res = ecs_close( 0 , 0 ) ;
if ( -1 == res ) printf("ERROR: Could not close device (BAR 0)\n");
else printf("SUCCESS: Device closed for DMA\n");
printf( "Timing = %f s\n" , time_spent ) ;
printf( "Number of events = %d \n", nEvt ) ;
printf( "Number of errors = %d \n", nErr ) ;
printf( "Number of retries = %d \n", nRetry ) ;
return 0 ;
}