GPL headers: Use correct project name.

[libsigrok.git] / output / analog.c

diff --git a/output/analog.c b/output/analog.c
index d1fd7be6b17b2924ab72f49d761019d3f52f83ef..68d1b623849b819cbeb2ca3fb184683363aac46b 100644 (file)
--- a/output/analog.c
+++ b/output/analog.c
@@ -1,5 +1,5 @@
 /*
- * This file is part of the sigrok project.
+ * This file is part of the libsigrok project.
  *
  * Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
  *
@@ -19,11 +19,19 @@
 
 #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;
@@ -31,19 +39,21 @@ struct context {
        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. */
@@ -91,7 +101,6 @@ static void si_printf(float value, GString *out, char *unitstr)
 
 static void fancyprint(int unit, int mqflags, float value, GString *out)
 {
-
        switch (unit) {
                case SR_UNIT_VOLT:
                        si_printf(value, out, "V");
@@ -137,6 +146,38 @@ static void fancyprint(int unit, int mqflags, float value, GString *out)
                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 | SR_MQFLAG_DC)) == (SR_MQFLAG_AC | SR_MQFLAG_DC))
                g_string_append_printf(out, " AC+DC");
@@ -145,16 +186,19 @@ static void fancyprint(int unit, int mqflags, float value, GString *out)
        else if (mqflags & SR_MQFLAG_DC)
                g_string_append_printf(out, " DC");
        g_string_append_c(out, '\n');
-
 }
 
 static GString *receive(struct sr_output *o, const struct sr_dev_inst *sdi,
-               struct sr_datafeed_packet *packet)
+               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;
@@ -172,13 +216,13 @@ static GString *receive(struct sr_output *o, const struct sr_dev_inst *sdi,
                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;
@@ -203,7 +247,6 @@ static int cleanup(struct sr_output *o)
        return SR_OK;
 }
 
-
 SR_PRIV struct sr_output_format output_analog = {
        .id = "analog",
        .description = "Analog data",