X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Fdemo%2Fprotocol.h;h=230d8f3528f6fe93bed4adbb6af2ccc0a09c26d9;hb=24a953382c4c07f4071a36897bf17c93db9ce1e7;hp=8eb841ce7d2e0b5fc61366a6cb9c4673670890e1;hpb=81d53a29d6afad1e091bb765d6952ec047e0dc6a;p=libsigrok.git

diff --git a/src/hardware/demo/protocol.h b/src/hardware/demo/protocol.h
index 8eb841ce..230d8f35 100644
--- a/src/hardware/demo/protocol.h
+++ b/src/hardware/demo/protocol.h
@@ -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
@@ -33,31 +34,17 @@
 #define LOGIC_BUFSIZE			4096
 /* Size of the analog pattern space per channel. */
 #define ANALOG_BUFSIZE			4096
+/* This is a development feature: it starts a new frame every n samples. */
+#define SAMPLES_PER_FRAME		1000UL
+#define DEFAULT_LIMIT_FRAMES		0
 
-/* Private, per-device-instance driver context. */
-struct dev_context {
-	uint64_t cur_samplerate;
-	uint64_t limit_samples;
-	uint64_t limit_msec;
-	uint64_t sent_samples;
-	int64_t start_us;
-	int64_t spent_us;
-	uint64_t step;
-	/* Logic */
-	int32_t num_logic_channels;
-	unsigned int logic_unitsize;
-	/* There is only ever one logic channel group, so its pattern goes here. */
-	uint8_t logic_pattern;
-	unsigned char logic_data[LOGIC_BUFSIZE];
-	/* Analog */
-	int32_t num_analog_channels;
-	GHashTable *ch_ag;
-	gboolean avg; /* True if averaging is enabled */
-	uint64_t avg_samples;
-};
+#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 {
+enum logic_pattern_type {
 	/**
 	 * Spells "sigrok" across 8 channels using '0's (with '1's as
 	 * "background") when displayed using the 'bits' output format.
@@ -75,6 +62,16 @@ enum {
 	 */
 	PATTERN_INC,
 
+	/**
+	 * Single bit "walking" across all logic channels by being
+	 * shifted across data lines, restarting after the last line
+	 * was used. An all-zero (all-one) state is inserted to prevent
+	 * repetitive patterns (e.g. with 8 data lines, every 8th state
+	 * would show the same line state)
+	 */
+	PATTERN_WALKING_ONE,
+	PATTERN_WALKING_ZERO,
+
 	/** All channels have a low logic state. */
 	PATTERN_ALL_LOW,
 
@@ -87,17 +84,18 @@ enum {
 	 * something that can get recognized.
 	 */
 	PATTERN_SQUID,
+
+	/** Gray encoded data, like rotary encoder signals. */
+	PATTERN_GRAYCODE,
 };
 
 /* Analog patterns we can generate. */
-enum {
-	/**
-	 * Square wave.
-	 */
+enum analog_pattern_type {
 	PATTERN_SQUARE,
 	PATTERN_SINE,
 	PATTERN_TRIANGLE,
 	PATTERN_SAWTOOTH,
+	PATTERN_ANALOG_RANDOM,
 };
 
 static const char *analog_pattern_str[] = {
@@ -105,22 +103,65 @@ static const char *analog_pattern_str[] = {
 	"sine",
 	"triangle",
 	"sawtooth",
+	"random",
+};
+
+struct analog_pattern {
+	float data[ANALOG_BUFSIZE];
+	unsigned int num_samples;
+};
+
+struct dev_context {
+	uint64_t cur_samplerate;
+	uint64_t limit_samples;
+	uint64_t limit_msec;
+	uint64_t limit_frames;
+	uint64_t sent_samples;
+	uint64_t sent_frame_samples; /* Number of samples that were sent for current frame. */
+	int64_t start_us;
+	int64_t spent_us;
+	uint64_t step;
+	/* Logic */
+	int32_t num_logic_channels;
+	size_t logic_unitsize;
+	uint64_t all_logic_channels_mask;
+	/* There is only ever one logic channel group, so its pattern goes here. */
+	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 */
+	uint64_t avg_samples;
+	size_t enabled_logic_channels;
+	size_t enabled_analog_channels;
+	size_t first_partial_logic_index;
+	uint8_t first_partial_logic_mask;
+	/* Triggers */
+	uint64_t capture_ratio;
+	gboolean trigger_fired;
+	struct soft_trigger_logic *stl;
 };
 
 struct analog_gen {
-	int pattern;
+	struct sr_channel *ch;
+	enum sr_mq mq;
+	enum sr_mqflag mq_flags;
+	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;
 	struct sr_analog_spec spec;
 	float avg_val; /* Average value */
-	unsigned num_avgs; /* Number of samples averaged */
+	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