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Diffstat (limited to 'gr-wxgui/include/wxgui/oscope_guts.h')
| -rw-r--r-- | gr-wxgui/include/wxgui/oscope_guts.h | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/gr-wxgui/include/wxgui/oscope_guts.h b/gr-wxgui/include/wxgui/oscope_guts.h new file mode 100644 index 0000000000..a6abd81539 --- /dev/null +++ b/gr-wxgui/include/wxgui/oscope_guts.h @@ -0,0 +1,131 @@ +/* -*- c++ -*- */ +/* + * Copyright 2003,2005,2013 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + + +#ifndef INCLUDED_GR_OSCOPE_GUTS_H +#define INCLUDED_GR_OSCOPE_GUTS_H + +#include <wxgui/api.h> +#include <wxgui/trigger_mode.h> +#include <gr_msg_queue.h> + +namespace gr { + namespace wxgui { + + /*! + * \brief guts of oscilloscope trigger and buffer module + * + * This module processes sets of samples provided the \p + * process_sample method. When appropriate given the updateRate, + * sampleRate and trigger conditions, process_sample will + * periodically write output records of captured data to + * output_fd. For each trigger event, nchannels records will be + * written. Each record consists of get_samples_per_output_record + * binary floats. The trigger instant occurs at the 1/2 way point + * in the buffer. Thus, output records consist of 50% pre-trigger + * data and 50% post-trigger data. + */ + + class WXGUI_API oscope_guts + { + public: + static const int MAX_CHANNELS = 8; + + private: + enum scope_state { HOLD_OFF, LOOK_FOR_TRIGGER, POST_TRIGGER }; + + int d_nchannels; // how many channels + gr_msg_queue_sptr d_msgq; // message queue we stuff output records into + trigger_mode d_trigger_mode; + trigger_slope d_trigger_slope; + int d_trigger_channel; // which channel to watch for trigger condition + double d_sample_rate; // input sample rate in Hz + double d_update_rate; // approx freq to produce an output record (Hz) + double d_trigger_level; + + int d_obi; // output buffer index + float *d_buffer[MAX_CHANNELS]; + + scope_state d_state; + int d_decimator_count; + int d_decimator_count_init; + int d_hold_off_count; + int d_hold_off_count_init; + int d_pre_trigger_count; + int d_post_trigger_count; + int d_post_trigger_count_init; + float d_trigger_off; //%sample trigger is off + + // NOT IMPLEMENTED + oscope_guts(const oscope_guts &rhs); // no copy constructor + oscope_guts &operator= (const oscope_guts &rhs); // no assignment operator + + void trigger_changed(); + void update_rate_or_decimation_changed(); + bool found_trigger(); // returns true if found + void write_output_records(); + + void enter_hold_off(); // called on state entry + void enter_look_for_trigger(); + void enter_post_trigger(); + + public: + // CREATORS + oscope_guts(double sample_rate, gr_msg_queue_sptr msgq); + ~oscope_guts(); + + // MANIPULATORS + + /*! + * \param channel_data points to nchannels float values. These + * are the values for each channel at this sample time. + */ + void process_sample(const float *channel_data); + + bool set_update_rate(double update_rate); + bool set_decimation_count(int decimation_count); + bool set_trigger_channel(int channel); + bool set_trigger_mode(trigger_mode mode); + bool set_trigger_slope(trigger_slope slope); + bool set_trigger_level(double trigger_level); + bool set_trigger_level_auto(); // set to 50% level + bool set_sample_rate(double sample_rate); + bool set_num_channels(int nchannels); + + // ACCESSORS + int num_channels() const; + double sample_rate() const; + double update_rate() const; + int get_decimation_count() const; + int get_trigger_channel() const; + trigger_mode get_trigger_mode() const; + trigger_slope get_trigger_slope() const; + double get_trigger_level() const; + + // # of samples written to each output record. + int get_samples_per_output_record() const; + }; + + } /* namespace wxgui */ +} /* namespace gr */ + +#endif /* INCLUDED_GR_OSCOPE_GUTS_H */ |