* 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
/* 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 0
+#define SAMPLES_PER_FRAME 1000UL
+#define DEFAULT_LIMIT_FRAMES 0
-struct dev_context {
- uint64_t cur_samplerate;
- uint64_t limit_samples;
- uint64_t limit_msec;
- 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;
- 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;
- size_t enabled_logic_channels;
- size_t enabled_analog_channels;
- size_t first_partial_logic_index;
- uint8_t first_partial_logic_mask;
-};
+#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.
* something that can get recognized.
*/
PATTERN_SQUID,
+
+ /** Gray encoded data, like rotary encoder signals. */
+ PATTERN_GRAYCODE,
};
/* Analog patterns we can generate. */
-enum {
+enum analog_pattern_type {
PATTERN_SQUARE,
PATTERN_SINE,
PATTERN_TRIANGLE,
PATTERN_SAWTOOTH,
+ PATTERN_ANALOG_RANDOM,
};
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 {
struct sr_channel *ch;
- int pattern;
+ 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