"CH2",
"LINE",
"EXT",
+ "PATT",
+ "BUS1",
+ "BUS2",
"D0",
"D1",
"D2",
"CH4",
"LINE",
"EXT",
+ "PATT",
+ "BUS1",
+ "BUS2",
"D0",
"D1",
"D2",
}
/**
- * This function takes a value of the form "2.000E-03", converts it to a
- * significand / factor pair and returns the index of an array where
- * a matching pair was found.
- *
- * It's a bit convoluted because of floating-point issues. The value "10.00E-09"
- * is parsed by g_ascii_strtod() as 0.000000009999999939, for example.
- * Therefore it's easier to break the number up into two strings and handle
- * them separately.
+ * This function takes a value of the form "2.000E-03" and returns the index
+ * of an array where a matching pair was found.
*
* @param value The string to be parsed.
* @param array The array of s/f pairs.
static int array_float_get(gchar *value, const uint64_t array[][2],
int array_len, unsigned int *result)
{
- int i, e;
- size_t pos;
- uint64_t f;
- float s;
- unsigned int s_int;
- gchar ss[10], es[10];
-
- memset(ss, 0, sizeof(ss));
- memset(es, 0, sizeof(es));
-
- /* Get index of the separating 'E' character and break up the string. */
- pos = strcspn(value, "E");
+ struct sr_rational rval;
+ struct sr_rational aval;
- strncpy(ss, value, pos);
- strncpy(es, &(value[pos+1]), 3);
-
- if (sr_atof_ascii(ss, &s) != SR_OK)
- return SR_ERR;
- if (sr_atoi(es, &e) != SR_OK)
+ if (sr_parse_rational(value, &rval) != SR_OK)
return SR_ERR;
- /* Transform e.g. 10^-03 to 1000 as the array stores the inverse. */
- f = pow(10, abs(e));
-
- /*
- * Adjust the significand/factor pair to make sure
- * that f is a multiple of 1000.
- */
- while ((int)fmod(log10(f), 3) > 0) {
- s *= 10;
-
- if (e < 0)
- f *= 10;
- else
- f /= 10;
- }
-
- /* Truncate s to circumvent rounding errors. */
- s_int = (unsigned int)s;
-
- for (i = 0; i < array_len; i++) {
- if ((s_int == array[i][0]) && (f == array[i][1])) {
+ for (int i = 0; i < array_len; i++) {
+ sr_rational_set(&aval, array[i][0], array[i][1]);
+ if (sr_rational_eq(&rval, &aval)) {
*result = i;
return SR_OK;
}
struct sr_datafeed_logic logic;
(void)fd;
+ (void)revents;
data = NULL;
if (!(devc = sdi->priv))
return TRUE;
+ /* Although this is correct in general, the USBTMC libusb implementation
+ * currently does not generate an event prior to the first read. Often
+ * it is ok to start reading just after the 50ms timeout. See bug #785.
if (revents != G_IO_IN)
return TRUE;
+ */
ch = devc->current_channel->data;
analog.mqflags = 0;
packet.type = SR_DF_ANALOG_OLD;
packet.payload = &analog;
- sr_session_send(cb_data, &packet);
+ sr_session_send(sdi, &packet);
g_slist_free(analog.channels);
g_array_free(data, TRUE);
data = NULL;
logic.data = data->data;
packet.type = SR_DF_LOGIC;
packet.payload = &logic;
- sr_session_send(cb_data, &packet);
+ sr_session_send(sdi, &packet);
g_array_free(data, TRUE);
data = NULL;
break;
devc->current_channel = devc->current_channel->next;
hmo_request_data(sdi);
} else if (++devc->num_frames == devc->frame_limit) {
- sdi->driver->dev_acquisition_stop(sdi, cb_data);
+ sdi->driver->dev_acquisition_stop(sdi);
} else {
devc->current_channel = devc->enabled_channels;
hmo_request_data(sdi);