Commit dd32d2b0 authored by Andrey Filippov's avatar Andrey Filippov
Browse files

Handling missing sesnors on porft 0

parent 7dbb2566

src/ext/elphel/elphel_php.c

+7 −3
Original line number Diff line number Diff line
@@ -2378,7 +2378,7 @@ static void php_elphel_init_globals(zend_elphel_globals *elphel_globals) 
                                     DEV393_PATH(DEV393_EXIF_META2), DEV393_PATH(DEV393_EXIF_META3)};

//DEV393_PATH(DEV393_CIRCBUF0

    int total_hist_entries;



    int i;

    int port;

    //! open "/dev/sensorpars" and mmap array - only once

    for (port = 0; port < SENSOR_PORTS; port++){
@@ -2435,12 +2435,16 @@ static void php_elphel_init_globals(zend_elphel_globals *elphel_globals) 
        php_error_docref(NULL TSRMLS_CC, E_ERROR, "Can not open file %s",DEV393_PATH(DEV393_HISTOGRAM));

        return ;

    }

    total_hist_entries = lseek(elphel_globals->fd_histogram_cache, LSEEK_HIST_SET_CHN + 0, SEEK_END); /// specify port/sub-channel is needed

    for (i=0;i<16;i++) {

        // Channel 0 is not always present (lseek returns -1)

        total_hist_entries = lseek(elphel_globals->fd_histogram_cache, LSEEK_HIST_SET_CHN + i, SEEK_END); /// specify port/sub-channel is needed

        if (total_hist_entries>0) break;

    }

    //! now try to mmap

    elphel_globals->histogram_cache = (struct histogram_stuct_t *) mmap(0, sizeof (struct histogram_stuct_t) * total_hist_entries, PROT_READ, MAP_SHARED, elphel_globals->fd_histogram_cache, 0);

    if((int)elphel_globals->histogram_cache == -1) {

        elphel_globals->histogram_cache=NULL;

        php_error_docref(NULL TSRMLS_CC, E_ERROR, "Error in mmap histogram_cache");

        php_error_docref(NULL TSRMLS_CC, E_ERROR, "Error in mmap histogram_cache, total_hist_entries=0x%x",total_hist_entries);

        close (elphel_globals->fd_histogram_cache);

        elphel_globals->fd_histogram_cache = -1;

        return ;