Exemplo n.º 1
0
int rtapi_app_main(void)
{
    int n, retval, i;

    if(num_chan && names[0]) {
        rtapi_print_msg(RTAPI_MSG_ERR,"num_chan= and names= are mutually exclusive\n");
        return -EINVAL;
    }
    if(!num_chan && !names[0]) num_chan = default_num_chan;

    if(num_chan) {
        howmany = num_chan;
    } else {
        for(i=0; names[i]; i++) {howmany = i+1;}
    }

    /* test for number of channels */
    if ((howmany <= 0) || (howmany > MAX_CHAN)) {
	rtapi_print_msg(RTAPI_MSG_ERR,
	    "SIGGEN: ERROR: invalid number of channels: %d\n", howmany);
	return -1;
    }
    /* have good config info, connect to the HAL */
    comp_id = hal_init("siggen");
    if (comp_id < 0) {
	rtapi_print_msg(RTAPI_MSG_ERR, "SIGGEN: ERROR: hal_init() failed\n");
	return -1;
    }
    /* allocate shared memory for siggen data */
    siggen_array = hal_malloc(howmany * sizeof(hal_siggen_t));
    if (siggen_array == 0) {
	rtapi_print_msg(RTAPI_MSG_ERR,
	    "SIGGEN: ERROR: hal_malloc() failed\n");
	hal_exit(comp_id);
	return -1;
    }
    /* export variables and functions for each siggen */
    i = 0; // for names= items
    for (n = 0; n < howmany; n++) {
	/* export everything for this loop */
        if(num_chan) {
            char buf[HAL_NAME_LEN + 1];
            rtapi_snprintf(buf, sizeof(buf), "siggen.%d", n);
	    retval = export_siggen(n, &(siggen_array[n]),buf);
        } else {
	    retval = export_siggen(n, &(siggen_array[n]),names[i++]);
        }

	if (retval != 0) {
	    rtapi_print_msg(RTAPI_MSG_ERR,
		"SIGGEN: ERROR: siggen %d var export failed\n", n);
	    hal_exit(comp_id);
	    return -1;
	}
    }
    rtapi_print_msg(RTAPI_MSG_INFO,
	"SIGGEN: installed %d signal generators\n", howmany);
    hal_ready(comp_id);
    return 0;
}
Exemplo n.º 2
0
int rtapi_app_main(void)
{
    int n, retval;

    /* test for number of channels */
    if ((num_chan <= 0) || (num_chan > MAX_CHAN)) {
	rtapi_print_msg(RTAPI_MSG_ERR,
	    "SIGGEN: ERROR: invalid num_chan: %d\n", num_chan);
	return -1;
    }
    /* have good config info, connect to the HAL */
    comp_id = hal_init("siggen");
    if (comp_id < 0) {
	rtapi_print_msg(RTAPI_MSG_ERR, "SIGGEN: ERROR: hal_init() failed\n");
	return -1;
    }
    /* allocate shared memory for siggen data */
    siggen_array = hal_malloc(num_chan * sizeof(hal_siggen_t));
    if (siggen_array == 0) {
	rtapi_print_msg(RTAPI_MSG_ERR,
	    "SIGGEN: ERROR: hal_malloc() failed\n");
	hal_exit(comp_id);
	return -1;
    }
    /* export variables and functions for each siggen */
    for (n = 0; n < num_chan; n++) {
	/* export everything for this loop */
	retval = export_siggen(n, &(siggen_array[n]));
	if (retval != 0) {
	    rtapi_print_msg(RTAPI_MSG_ERR,
		"SIGGEN: ERROR: siggen %d var export failed\n", n);
	    hal_exit(comp_id);
	    return -1;
	}
    }
    rtapi_print_msg(RTAPI_MSG_INFO,
	"SIGGEN: installed %d signal generators\n", num_chan);
    hal_ready(comp_id);
    return 0;
}