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comedi: adapt to new signal code and separate node-type configuration into in/out sections

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This commit is contained in:
Steffen Vogel 2018-08-20 18:29:35 +02:00
parent 198649b9b1
commit 52c9639d9c
1 changed files with 30 additions and 19 deletions
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49
lib/nodes/comedi.c
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@ -48,9 +48,9 @@ static int comedi_parse_direction(struct comedi *c, struct comedi_direction *d,
ret = json_unpack_ex(cfg, &err, 0, "{ s?: i, s?: i, s: o, s: i }",
"subdevice", &d->subdevice,
"bufsize", &d->buffer_size,
"signals", &json_chans,
"rate", &d->sample_rate_hz
"bufsize", &d->buffer_size,
"signals", &json_chans,
"rate", &d->sample_rate_hz
);
if (ret)
jerror(&err, "Failed to parse configuration");
@ -191,10 +191,10 @@ static int comedi_start_in(struct node *n)
cmd.subdev = d->subdevice;
/* Make card send interrupts after every sample, not only when fifo is half
* full (TODO: evaluate if this makes sense, leave as reminder) /*
* full (TODO: evaluate if this makes sense, leave as reminder) */
//cmd.flags = TRIG_WAKE_EOS;
/* Start right now *
/* Start right now */
cmd.start_src = TRIG_NOW;
/* Trigger scans periodically */
@ -426,8 +426,6 @@ int comedi_parse(struct node *n, json_t *cfg)
c->device = strdup(device);
n->samplelen = c->in.chanlist_len;
return 0;
}
@ -573,7 +571,7 @@ int comedi_read(struct node *n, struct sample *smps[], unsigned cnt, unsigned *r
for (size_t i = 0; i < cnt; i++) {
d->counter++;
smps[i]->flags = SAMPLE_HAS_ORIGIN | SAMPLE_HAS_VALUES | SAMPLE_HAS_SEQUENCE;
smps[i]->flags = SAMPLE_HAS_TS_ORIGIN | SAMPLE_HAS_DATA | SAMPLE_HAS_SEQUENCE;
smps[i]->sequence = d->counter / d->chanlist_len;
struct timespec offset = time_from_double(d->counter * 1.0 / d->sample_rate_hz);
@ -597,7 +595,6 @@ int comedi_read(struct node *n, struct sample *smps[], unsigned cnt, unsigned *r
c->bufptr += d->sample_size;
smps[i]->data[si].f = comedi_to_phys(raw, d->chanspecs[si].range, d->chanspecs[si].maxdata);
sample_set_data_format(smps[i], si, SAMPLE_DATA_FORMAT_FLOAT);
if (isnan(smps[i]->data[si].f))
warn("Input: channel %d clipped", CR_CHAN(d->chanlist[si]));
@ -719,7 +716,7 @@ int comedi_read(struct node *n, struct sample *smps[], unsigned cnt, unsigned *r
for (size_t i = 0; i < cnt; i++) {
d->counter++;
smps[i]->flags = SAMPLE_HAS_ORIGIN | SAMPLE_HAS_VALUES | SAMPLE_HAS_SEQUENCE;
smps[i]->flags = SAMPLE_HAS_TS_ORIGIN | SAMPLE_HAS_DATA | SAMPLE_HAS_SEQUENCE;
smps[i]->sequence = d->counter / d->chanlist_len;
struct timespec offset = time_from_double(d->counter * 1.0 / d->sample_rate_hz);
@ -740,7 +737,6 @@ int comedi_read(struct node *n, struct sample *smps[], unsigned cnt, unsigned *r
raw = *((lsampl_t *)(c->map + c->bufpos));
smps[i]->data[si].f = comedi_to_phys(raw, d->chanspecs[si].range, d->chanspecs[si].maxdata);
sample_set_data_format(smps[i], si, SAMPLE_DATA_FORMAT_FLOAT);
if (isnan(smps[i]->data[si].f)) {
error("got nan");
@ -881,14 +877,29 @@ int comedi_write(struct node *n, struct sample *smps[], unsigned cnt, unsigned *
for (int si = 0; si < sample->length; si++) {
unsigned raw_value = 0;
switch(sample_get_data_format(sample, si)) {
case SAMPLE_DATA_FORMAT_FLOAT:
raw_value = comedi_from_phys(sample->data[si].f, d->chanspecs[si].range, d->chanspecs[si].maxdata);
break;
case SAMPLE_DATA_FORMAT_INT:
// treat sample as already raw DAC value
raw_value = sample->data[si].i;
break;
switch (sample_format(sample, si)) {
case SIGNAL_TYPE_FLOAT:
raw_value = comedi_from_phys(sample->data[si].f, d->chanspecs[si].range, d->chanspecs[si].maxdata);
break;
case SIGNAL_TYPE_INTEGER:
/* Treat sample as already raw DAC value */
raw_value = sample->data[si].i;
break;
case SIGNAL_TYPE_BOOLEAN:
raw_value = comedi_from_phys(sample->data[si].b ? 1 : 0, d->chanspecs[si].range, d->chanspecs[si].maxdata);
break;
case SIGNAL_TYPE_COMPLEX:
/* We only output the real part */
raw_value = comedi_from_phys(creal(sample->data[si].z), d->chanspecs[si].range, d->chanspecs[si].maxdata);
break;
case SIGNAL_TYPE_INVALID:
case SIGNAL_TYPE_AUTO:
raw_value = 0;
break;
}
if (d->sample_size == sizeof(sampl_t))