X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Fdemo%2Fprotocol.h;h=230d8f3528f6fe93bed4adbb6af2ccc0a09c26d9;hb=395c1850b797384cd7e1a2e194c001461c8460f7;hp=de0ac7a86078d125f1925c801638249bdff37a7c;hpb=94f364ec11c938934f68cde067ee590218177140;p=libsigrok.git

diff --git a/src/hardware/demo/protocol.h b/src/hardware/demo/protocol.h
index de0ac7a8..230d8f35 100644
--- a/src/hardware/demo/protocol.h
+++ b/src/hardware/demo/protocol.h
@@ -38,6 +38,11 @@
 #define SAMPLES_PER_FRAME		1000UL
 #define DEFAULT_LIMIT_FRAMES		0
 
+#define DEFAULT_ANALOG_ENCODING_DIGITS	4
+#define DEFAULT_ANALOG_SPEC_DIGITS		4
+#define DEFAULT_ANALOG_AMPLITUDE		10
+#define DEFAULT_ANALOG_OFFSET			0.
+
 /* Logic patterns we can generate. */
 enum logic_pattern_type {
 	/**
@@ -90,6 +95,20 @@ enum analog_pattern_type {
 	PATTERN_SINE,
 	PATTERN_TRIANGLE,
 	PATTERN_SAWTOOTH,
+	PATTERN_ANALOG_RANDOM,
+};
+
+static const char *analog_pattern_str[] = {
+	"square",
+	"sine",
+	"triangle",
+	"sawtooth",
+	"random",
+};
+
+struct analog_pattern {
+	float data[ANALOG_BUFSIZE];
+	unsigned int num_samples;
 };
 
 struct dev_context {
@@ -110,6 +129,7 @@ struct dev_context {
 	enum logic_pattern_type logic_pattern;
 	uint8_t logic_data[LOGIC_BUFSIZE];
 	/* Analog */
+	struct analog_pattern *analog_patterns[ARRAY_SIZE(analog_pattern_str)];
 	int32_t num_analog_channels;
 	GHashTable *ch_ag;
 	gboolean avg; /* True if averaging is enabled */
@@ -124,13 +144,6 @@ struct dev_context {
 	struct soft_trigger_logic *stl;
 };
 
-static const char *analog_pattern_str[] = {
-	"square",
-	"sine",
-	"triangle",
-	"sawtooth",
-};
-
 struct analog_gen {
 	struct sr_channel *ch;
 	enum sr_mq mq;
@@ -138,8 +151,7 @@ struct analog_gen {
 	enum sr_unit unit;
 	enum analog_pattern_type pattern;
 	float amplitude;
-	float pattern_data[ANALOG_BUFSIZE];
-	unsigned int num_samples;
+	float offset;
 	struct sr_datafeed_analog packet;
 	struct sr_analog_encoding encoding;
 	struct sr_analog_meaning meaning;
@@ -148,7 +160,8 @@ struct analog_gen {
 	unsigned int num_avgs; /* Number of samples averaged */
 };
 
-SR_PRIV void demo_generate_analog_pattern(struct analog_gen *ag, uint64_t sample_rate);
+SR_PRIV void demo_generate_analog_pattern(struct dev_context *devc);
+SR_PRIV void demo_free_analog_pattern(struct dev_context *devc);
 SR_PRIV int demo_prepare_data(int fd, int revents, void *cb_data);
 
 #endif