#include <stdlib.h>
#include <string.h>
+#include <math.h>
#include <glib.h>
-#include "config.h"
#include "libsigrok.h"
#include "libsigrok-internal.h"
-#include <math.h>
+
+/* Message logging helpers with driver-specific prefix string. */
+#define DRIVER_LOG_DOMAIN "output/analog: "
+#define sr_log(l, s, args...) sr_log(l, DRIVER_LOG_DOMAIN s, ## args)
+#define sr_spew(s, args...) sr_spew(DRIVER_LOG_DOMAIN s, ## args)
+#define sr_dbg(s, args...) sr_dbg(DRIVER_LOG_DOMAIN s, ## args)
+#define sr_info(s, args...) sr_info(DRIVER_LOG_DOMAIN s, ## args)
+#define sr_warn(s, args...) sr_warn(DRIVER_LOG_DOMAIN s, ## args)
+#define sr_err(s, args...) sr_err(DRIVER_LOG_DOMAIN s, ## args)
struct context {
int num_enabled_probes;
GString *out;
};
-
static int init(struct sr_output *o)
{
struct context *ctx;
struct sr_probe *probe;
GSList *l;
- sr_spew("output/analog: initializing");
+ sr_spew("Initializing output module.");
+
if (!o || !o->sdi)
return SR_ERR_ARG;
- if (!(ctx = g_try_malloc0(sizeof(struct context))))
+ if (!(ctx = g_try_malloc0(sizeof(struct context)))) {
+ sr_err("Output module context malloc failed.");
return SR_ERR_MALLOC;
+ }
o->internal = ctx;
/* Get the number of probes and their names. */
static void si_printf(float value, GString *out, char *unitstr)
{
+ float v;
- if (value > 1000000000L)
- g_string_append_printf(out, "%f G%s", value / 1000000000L, unitstr);
- else if (value > 1000000)
- g_string_append_printf(out, "%f M%s", value / 1000000, unitstr);
- else if (value > 1000)
- g_string_append_printf(out, "%f k%s", value / 1000, unitstr);
- else if (value < 0.000000000001)
- g_string_append_printf(out, "%f p%s", value * 1000000000000, unitstr);
- else if (value < 0.000000001)
- g_string_append_printf(out, "%f n%s", value * 1000000000, unitstr);
- else if (value < 0.000001)
- g_string_append_printf(out, "%f u%s", value * 1000000, unitstr);
- else if (value < 0.001)
- g_string_append_printf(out, "%f m%s", value * 1000, unitstr);
+ if (signbit(value))
+ v = -(value);
+ else
+ v = value;
+
+ if (v < 1e-12 || v > 1e+12)
+ g_string_append_printf(out, "%f %s", value, unitstr);
+ else if (v > 1e+9)
+ g_string_append_printf(out, "%f G%s", value / 1e+9, unitstr);
+ else if (v > 1e+6)
+ g_string_append_printf(out, "%f M%s", value / 1e+6, unitstr);
+ else if (v > 1e+3)
+ g_string_append_printf(out, "%f k%s", value / 1e+3, unitstr);
+ else if (v < 1e-9)
+ g_string_append_printf(out, "%f n%s", value * 1e+9, unitstr);
+ else if (v < 1e-6)
+ g_string_append_printf(out, "%f u%s", value * 1e+6, unitstr);
+ else if (v < 1e-3)
+ g_string_append_printf(out, "%f m%s", value * 1e+3, unitstr);
else
g_string_append_printf(out, "%f %s", value, unitstr);
static void fancyprint(int unit, int mqflags, float value, GString *out)
{
-
switch (unit) {
case SR_UNIT_VOLT:
si_printf(value, out, "V");
case SR_UNIT_SIEMENS:
si_printf(value, out, "S");
break;
+ case SR_UNIT_DECIBEL_MW:
+ si_printf(value, out, "dBu");
+ break;
+ case SR_UNIT_DECIBEL_VOLT:
+ si_printf(value, out, "dBV");
+ break;
+ case SR_UNIT_DECIBEL_SPL:
+ if (mqflags & SR_MQFLAG_SPL_FREQ_WEIGHT_A)
+ si_printf(value, out, "dB(A)");
+ else if (mqflags & SR_MQFLAG_SPL_FREQ_WEIGHT_C)
+ si_printf(value, out, "dB(C)");
+ else if (mqflags & SR_MQFLAG_SPL_FREQ_WEIGHT_Z)
+ si_printf(value, out, "dB(Z)");
+ else
+ /* No frequency weighting, or non-standard "flat" */
+ si_printf(value, out, "dB(SPL)");
+ if (mqflags & SR_MQFLAG_SPL_TIME_WEIGHT_S)
+ g_string_append(out, " S");
+ else if (mqflags & SR_MQFLAG_SPL_TIME_WEIGHT_F)
+ g_string_append(out, " F");
+ if (mqflags & SR_MQFLAG_SPL_LAT)
+ g_string_append(out, " LAT");
+ else if (mqflags & SR_MQFLAG_SPL_PCT_OVER_ALARM)
+ /* Not a standard function for SLMs, so this is
+ * a made-up notation. */
+ g_string_append(out, " %oA");
+ break;
+ case SR_UNIT_CONCENTRATION:
+ g_string_append_printf(out, "%f ppm", value * 1000000);
+ break;
+ default:
+ si_printf(value, out, "");
}
- if (mqflags & SR_MQFLAG_AC)
+ if ((mqflags & (SR_MQFLAG_AC | SR_MQFLAG_DC)) == (SR_MQFLAG_AC | SR_MQFLAG_DC))
+ g_string_append_printf(out, " AC+DC");
+ else if (mqflags & SR_MQFLAG_AC)
g_string_append_printf(out, " AC");
else if (mqflags & SR_MQFLAG_DC)
g_string_append_printf(out, " DC");
g_string_append_c(out, '\n');
-
}
-static GString *recv(struct sr_output *o, const struct sr_dev_inst *sdi,
- struct sr_datafeed_packet *packet)
+static GString *receive(struct sr_output *o, const struct sr_dev_inst *sdi,
+ const struct sr_datafeed_packet *packet)
{
- struct sr_datafeed_analog *analog;
struct context *ctx;
- float *fdata;
- int i, j;
+ const struct sr_datafeed_analog *analog;
+ struct sr_probe *probe;
+ GSList *l;
+ const float *fdata;
+ int i, p;
+
+ (void)sdi;
if (!o || !o->sdi)
return NULL;
break;
case SR_DF_ANALOG:
analog = packet->payload;
- fdata = (float *)analog->data;
+ fdata = (const float *)analog->data;
for (i = 0; i < analog->num_samples; i++) {
- for (j = 0; j < ctx->num_enabled_probes; j++) {
- g_string_append_printf(ctx->out, "%s: ",
- (char *)g_ptr_array_index(ctx->probelist, j));
+ for (l = analog->probes, p = 0; l; l = l->next, p++) {
+ probe = l->data;
+ g_string_append_printf(ctx->out, "%s: ", probe->name);
fancyprint(analog->unit, analog->mqflags,
- fdata[i + j], ctx->out);
+ fdata[i + p], ctx->out);
}
}
break;
return SR_OK;
}
-
SR_PRIV struct sr_output_format output_analog = {
.id = "analog",
.description = "Analog data",
.df_type = SR_DF_ANALOG,
.init = init,
- .recv = recv,
+ .recv = receive,
.cleanup = cleanup
};
projects / libsigrok.git / blobdiff