demo: Get/Set measurement quantity for the analog channels.

[libsigrok.git] / src / hardware / demo / api.c

diff --git a/src/hardware/demo/api.c b/src/hardware/demo/api.c
index 7d3e08872d07c21b38832845a138d5cf2bd3fe80..1f9b9d2c04892c988a5dbbbd104ec3027ad9d6b4 100644 (file)
--- a/src/hardware/demo/api.c
+++ b/src/hardware/demo/api.c
@@ -5,6 +5,7 @@
  * Copyright (C) 2011 Olivier Fauchon <olivier@aixmarseille.com>
  * Copyright (C) 2012 Alexandru Gagniuc <mr.nuke.me@gmail.com>
  * Copyright (C) 2015 Bartosz Golaszewski <bgolaszewski@baylibre.com>
+ * Copyright (C) 2019 Frank Stettner <frank-stettner@gmx.net>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -28,11 +29,13 @@
 #include "libsigrok-internal.h"
 #include "protocol.h"
 
-#define DEFAULT_NUM_LOGIC_CHANNELS     8
-#define DEFAULT_LOGIC_PATTERN          PATTERN_SIGROK
+#define DEFAULT_NUM_LOGIC_CHANNELS             8
+#define DEFAULT_LOGIC_PATTERN                  PATTERN_SIGROK
 
-#define DEFAULT_NUM_ANALOG_CHANNELS    4
-#define DEFAULT_ANALOG_AMPLITUDE       10
+#define DEFAULT_NUM_ANALOG_CHANNELS            4
+#define DEFAULT_ANALOG_ENCODING_DIGITS 4
+#define DEFAULT_ANALOG_SPEC_DIGITS             4
+#define DEFAULT_ANALOG_AMPLITUDE               10
 
 /* Note: No spaces allowed because of sigrok-cli. */
 static const char *logic_pattern_str[] = {
@@ -80,6 +83,7 @@ static const uint32_t devopts_cg_analog_group[] = {
 };
 
 static const uint32_t devopts_cg_analog_channel[] = {
+       SR_CONF_MEASURED_QUANTITY | SR_CONF_GET | SR_CONF_SET,
        SR_CONF_PATTERN_MODE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
        SR_CONF_AMPLITUDE | SR_CONF_GET | SR_CONF_SET,
 };
@@ -182,12 +186,17 @@ static GSList *scan(struct sr_dev_driver *di, GSList *options)
                        /* Every channel gets a generator struct. */
                        ag = g_malloc(sizeof(struct analog_gen));
                        ag->ch = ch;
+                       ag->mq = SR_MQ_VOLTAGE;
+                       ag->mq_flags = SR_MQFLAG_DC;
+                       ag->unit = SR_UNIT_VOLT;
                        ag->amplitude = DEFAULT_ANALOG_AMPLITUDE;
                        sr_analog_init(&ag->packet, &ag->encoding, &ag->meaning, &ag->spec, 2);
                        ag->packet.meaning->channels = cg->channels;
-                       ag->packet.meaning->mq = 0;
-                       ag->packet.meaning->mqflags = 0;
-                       ag->packet.meaning->unit = SR_UNIT_VOLT;
+                       ag->packet.meaning->mq = ag->mq;
+                       ag->packet.meaning->mqflags = ag->mq_flags;
+                       ag->packet.meaning->unit = ag->unit;
+                       ag->packet.encoding->digits = DEFAULT_ANALOG_ENCODING_DIGITS;
+                       ag->packet.spec->spec_digits = DEFAULT_ANALOG_SPEC_DIGITS;
                        ag->packet.data = ag->pattern_data;
                        ag->pattern = pattern;
                        ag->avg_val = 0.0f;
@@ -227,6 +236,7 @@ static int config_get(uint32_t key, GVariant **data,
        struct dev_context *devc;
        struct sr_channel *ch;
        struct analog_gen *ag;
+       GVariant *mq_arr[2];
        int pattern;
 
        if (!sdi)
@@ -252,6 +262,18 @@ static int config_get(uint32_t key, GVariant **data,
        case SR_CONF_AVG_SAMPLES:
                *data = g_variant_new_uint64(devc->avg_samples);
                break;
+       case SR_CONF_MEASURED_QUANTITY:
+               if (!cg)
+                       return SR_ERR_CHANNEL_GROUP;
+               /* Any channel in the group will do. */
+               ch = cg->channels->data;
+               if (ch->type != SR_CHANNEL_ANALOG)
+                       return SR_ERR_ARG;
+               ag = g_hash_table_lookup(devc->ch_ag, ch);
+               mq_arr[0] = g_variant_new_uint32(ag->mq);
+               mq_arr[1] = g_variant_new_uint64(ag->mq_flags);
+               *data = g_variant_new_tuple(mq_arr, 2);
+               break;
        case SR_CONF_PATTERN_MODE:
                if (!cg)
                        return SR_ERR_CHANNEL_GROUP;
@@ -293,6 +315,7 @@ static int config_set(uint32_t key, GVariant *data,
        struct dev_context *devc;
        struct analog_gen *ag;
        struct sr_channel *ch;
+       GVariant *mq_tuple_child;
        GSList *l;
        int logic_pattern, analog_pattern;
 
@@ -321,6 +344,21 @@ static int config_set(uint32_t key, GVariant *data,
                devc->avg_samples = g_variant_get_uint64(data);
                sr_dbg("Setting averaging rate to %" PRIu64, devc->avg_samples);
                break;
+       case SR_CONF_MEASURED_QUANTITY:
+               if (!cg)
+                       return SR_ERR_CHANNEL_GROUP;
+               for (l = cg->channels; l; l = l->next) {
+                       ch = l->data;
+                       if (ch->type != SR_CHANNEL_ANALOG)
+                               return SR_ERR_ARG;
+                       ag = g_hash_table_lookup(devc->ch_ag, ch);
+                       mq_tuple_child = g_variant_get_child_value(data, 0);
+                       ag->mq = g_variant_get_uint32(mq_tuple_child);
+                       mq_tuple_child = g_variant_get_child_value(data, 1);
+                       ag->mq_flags = g_variant_get_uint64(mq_tuple_child);
+                       g_variant_unref(mq_tuple_child);
+               }
+               break;
        case SR_CONF_PATTERN_MODE:
                if (!cg)
                        return SR_ERR_CHANNEL_GROUP;