struct context {
unsigned int num_enabled_probes;
unsigned int unitsize;
- char *probelist[65];
+ char *probelist[MAX_NUM_PROBES+1];
char *header;
};
+#define MAX_HEADER_LEN 1024 + (MAX_NUM_PROBES * (MAX_PROBENAME_LEN + 10))
const char *gnuplot_header = "\
# Sample data in space-separated columns format usable by gnuplot\n\
#\n\
# Generated by: %s on %s%s\
-# Timescale: %d %s\n\
+# Period: %s\n\
#\n\
# Column\tProbe\n\
# -------------------------------------\
const char *gnuplot_header_comment = "\
# Comment: Acquisition with %d/%d probes at %s\n";
-static int init(struct output *o)
+static int init(struct sr_output *o)
{
-/* Maximum header length */
-#define MAX_HEADER_LEN 2048
-
struct context *ctx;
struct probe *probe;
GSList *l;
uint64_t samplerate;
unsigned int i;
int b, num_probes;
- char *c, *samplerate_s;
+ char *c, *frequency_s;
char wbuf[1000], comment[128];
time_t t;
if (!(ctx = calloc(1, sizeof(struct context))))
- return SIGROK_ERR_MALLOC;
+ return SR_ERR_MALLOC;
+
+ if (!(ctx->header = calloc(1, MAX_HEADER_LEN + 1))) {
+ free(ctx);
+ return SR_ERR_MALLOC;
+ }
o->internal = ctx;
ctx->num_enabled_probes = 0;
continue;
ctx->probelist[ctx->num_enabled_probes++] = probe->name;
}
-
ctx->probelist[ctx->num_enabled_probes] = 0;
ctx->unitsize = (ctx->num_enabled_probes + 7) / 8;
- /* TODO: Allow for configuration via o->param. */
-
- if (!(ctx->header = calloc(1, MAX_HEADER_LEN + 1))) {
- free(ctx);
- return SIGROK_ERR_MALLOC;
- }
-
num_probes = g_slist_length(o->device->probes);
- /* TODO: Handle num_probes == 0, too many probes, etc. */
-
comment[0] = '\0';
if (o->device->plugin) {
samplerate = *((uint64_t *) o->device->plugin->get_device_info(
o->device->plugin_index, DI_CUR_SAMPLERATE));
- if (!(samplerate_s = sigrok_samplerate_string(samplerate))) {
+ if (!(frequency_s = sigrok_samplerate_string(samplerate))) {
free(ctx->header);
free(ctx);
- return SIGROK_ERR;
+ return SR_ERR;
}
snprintf(comment, 127, gnuplot_header_comment,
- ctx->num_enabled_probes, num_probes, samplerate_s);
- free(samplerate_s);
+ ctx->num_enabled_probes, num_probes, frequency_s);
+ free(frequency_s);
}
/* Columns / channels */
sprintf(c, "# %d\t\t%s\n", i + 1, ctx->probelist[i]);
}
- /* TODO: date: File or signals? Make y/n configurable. */
- /* TODO: Timescale */
+ if (!(frequency_s = sigrok_period_string(samplerate))) {
+ free(ctx->header);
+ free(ctx);
+ return SR_ERR;
+ }
t = time(NULL);
b = snprintf(ctx->header, MAX_HEADER_LEN, gnuplot_header,
- PACKAGE_STRING, ctime(&t), comment, 1, "ns",
+ PACKAGE_STRING, ctime(&t), comment, frequency_s,
(char *)&wbuf);
+ free(frequency_s);
- /* TODO: Handle snprintf errors. */
+ if (b < 0) {
+ free(ctx->header);
+ free(ctx);
+ return SR_ERR;
+ }
return 0;
}
-static int event(struct output *o, int event_type, char **data_out,
+static int event(struct sr_output *o, int event_type, char **data_out,
uint64_t *length_out)
{
struct context *ctx;
ctx = o->internal;
switch (event_type) {
case DF_TRIGGER:
- /* TODO */
+ /* TODO: can a trigger mark be in a gnuplot data file? */
break;
case DF_END:
- *data_out = NULL;
- *length_out = 0;
free(o->internal);
o->internal = NULL;
break;
}
- return SIGROK_OK;
+ *data_out = NULL;
+ *length_out = 0;
+
+ return SR_OK;
}
-static int data(struct output *o, char *data_in, uint64_t length_in,
+static int data(struct sr_output *o, char *data_in, uint64_t length_in,
char **data_out, uint64_t *length_out)
{
struct context *ctx;
- unsigned int i, outsize, p, curbit;
+ unsigned int max_linelen, outsize, p, curbit, i;
uint64_t sample;
static uint64_t samplecount = 0;
char *outbuf, *c;
ctx = o->internal;
- outsize = 0;
+ max_linelen = 16 + ctx->num_enabled_probes * 2;
+ outsize = length_in / ctx->unitsize * max_linelen;
if (ctx->header)
- outsize = strlen(ctx->header);
+ outsize += strlen(ctx->header);
- /* FIXME: Use realloc(). */
- if (!(outbuf = calloc(1, outsize + 1 + 1000000)))
- return SIGROK_ERR_MALLOC; /* TODO: free()? What to free? */
+ if (!(outbuf = calloc(1, outsize)))
+ return SR_ERR_MALLOC;
outbuf[0] = '\0';
if (ctx->header) {
ctx->header = NULL;
}
- /* TODO: Are disabled probes handled correctly? */
-
for (i = 0; i <= length_in - ctx->unitsize; i += ctx->unitsize) {
memcpy(&sample, data_in + i, ctx->unitsize);
/* The first column is a counter (needed for gnuplot). */
c = outbuf + strlen(outbuf);
- sprintf(c, "%" PRIu64 "\t\t", samplecount++);
+ sprintf(c, "%" PRIu64 "\t", samplecount++);
/* The next columns are the values of all channels. */
for (p = 0; p < ctx->num_enabled_probes; p++) {
c = outbuf + strlen(outbuf);
sprintf(c, "\n");
+ }
- /* TODO: realloc() if strlen(outbuf) is almost "full"... */
+ *data_out = outbuf;
+ *length_out = strlen(outbuf);
+
+ return SR_OK;
+}
+
+static int analog_init(struct sr_output *o)
+{
+ struct context *ctx;
+ struct probe *probe;
+ GSList *l;
+ uint64_t samplerate;
+ unsigned int i;
+ int b, num_probes;
+ char *c, *frequency_s;
+ char wbuf[1000], comment[128];
+ time_t t;
+
+ if (!(ctx = calloc(1, sizeof(struct context))))
+ return SR_ERR_MALLOC;
+
+ if (!(ctx->header = calloc(1, MAX_HEADER_LEN + 1))) {
+ free(ctx);
+ return SR_ERR_MALLOC;
+ }
+
+ o->internal = ctx;
+ ctx->num_enabled_probes = 0;
+ for (l = o->device->probes; l; l = l->next) {
+ probe = l->data;
+ if (!probe->enabled)
+ continue;
+ ctx->probelist[ctx->num_enabled_probes++] = probe->name;
+ }
+ ctx->probelist[ctx->num_enabled_probes] = 0;
+// ctx->unitsize = (ctx->num_enabled_probes + 7) / 8;
+ ctx->unitsize = sizeof(struct analog_sample) +
+ (ctx->num_enabled_probes * sizeof(struct analog_probe));
+
+ num_probes = g_slist_length(o->device->probes);
+ comment[0] = '\0';
+ if (o->device->plugin) {
+ samplerate = *((uint64_t *) o->device->plugin->get_device_info(
+ o->device->plugin_index, DI_CUR_SAMPLERATE));
+ if (!(frequency_s = sigrok_samplerate_string(samplerate))) {
+ free(ctx->header);
+ free(ctx);
+ return SR_ERR;
+ }
+ snprintf(comment, 127, gnuplot_header_comment,
+ ctx->num_enabled_probes, num_probes, frequency_s);
+ free(frequency_s);
+ }
+
+ /* Columns / channels */
+ wbuf[0] = '\0';
+ for (i = 0; i < ctx->num_enabled_probes; i++) {
+ c = (char *)&wbuf + strlen((char *)&wbuf);
+ sprintf(c, "# %d\t\t%s\n", i + 1, ctx->probelist[i]);
+ }
+
+ if (!(frequency_s = sigrok_period_string(samplerate))) {
+ free(ctx->header);
+ free(ctx);
+ return SR_ERR;
+ }
+ t = time(NULL);
+ b = snprintf(ctx->header, MAX_HEADER_LEN, gnuplot_header,
+ PACKAGE_STRING, ctime(&t), comment, frequency_s,
+ (char *)&wbuf);
+ free(frequency_s);
+
+ if (b < 0) {
+ free(ctx->header);
+ free(ctx);
+ return SR_ERR;
+ }
+
+ return 0;
+}
+
+static int analog_data(struct sr_output *o, char *data_in, uint64_t length_in,
+ char **data_out, uint64_t *length_out)
+{
+ struct context *ctx;
+ unsigned int max_linelen, outsize, p, /* curbit, */ i;
+// uint64_t sample;
+ static uint64_t samplecount = 0;
+ char *outbuf, *c;
+ struct analog_sample *sample;
+
+ ctx = o->internal;
+// max_linelen = 16 + ctx->num_enabled_probes * 2;
+ max_linelen = 16 + ctx->num_enabled_probes * 30;
+ outsize = length_in / ctx->unitsize * max_linelen;
+ if (ctx->header)
+ outsize += strlen(ctx->header);
+
+ if (!(outbuf = calloc(1, outsize)))
+ return SR_ERR_MALLOC;
+
+ outbuf[0] = '\0';
+ if (ctx->header) {
+ /* The header is still here, this must be the first packet. */
+ strncpy(outbuf, ctx->header, outsize);
+ free(ctx->header);
+ ctx->header = NULL;
+ }
+
+ for (i = 0; i <= length_in - ctx->unitsize; i += ctx->unitsize) {
+// memcpy(&sample, data_in + i, ctx->unitsize);
+ sample = (struct analog_sample *) (data_in + i);
+
+ /* The first column is a counter (needed for gnuplot). */
+ c = outbuf + strlen(outbuf);
+ sprintf(c, "%" PRIu64 "\t", samplecount++);
+
+ /* The next columns are the values of all channels. */
+ for (p = 0; p < ctx->num_enabled_probes; p++) {
+// curbit = (sample & ((uint64_t) (1 << p))) >> p;
+ c = outbuf + strlen(outbuf);
+// sprintf(c, "%d ", curbit);
+ /*
+ * FIXME: Should be doing proper raw->voltage conversion
+ * here, casting to int16_t isn't it. Remember that if
+ * res = 1 conversion isn't necessary.
+ */
+ sprintf(c, "%f ", (double) ((int16_t) (sample->probes[p].val &
+ ((1 << sample->probes[p].res) - 1))));
+ }
+
+ c = outbuf + strlen(outbuf);
+ sprintf(c, "\n");
}
*data_out = outbuf;
*length_out = strlen(outbuf);
- return SIGROK_OK;
+ return SR_OK;
}
-struct output_format output_gnuplot = {
+struct sr_output_format output_gnuplot = {
"gnuplot",
"Gnuplot",
+ DF_LOGIC,
init,
data,
event,
};
+
+struct sr_output_format output_analog_gnuplot = {
+ "analog_gnuplot",
+ "Gnuplot analog",
+ DF_ANALOG,
+ analog_init,
+ analog_data,
+ event,
+};
projects / libsigrok.git / blobdiff