128 lines
3.6 KiB
C
128 lines
3.6 KiB
C
/*
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* This file is part of the libsigrok project.
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*
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* Copyright (C) 2014 abraxa (Soeren Apel) <soeren@apelpie.net>
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* Based on the Hameg HMO driver by poljar (Damir Jelić) <poljarinho@gmail.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef LIBSIGROK_HARDWARE_YOKOGAWA_DLM_PROTOCOL_H
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#define LIBSIGROK_HARDWARE_YOKOGAWA_DLM_PROTOCOL_H
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#include <glib.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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#include <libsigrok/libsigrok.h>
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#include "libsigrok-internal.h"
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#include "protocol_wrappers.h"
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#define LOG_PREFIX "yokogawa-dlm"
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#define MAX_INSTRUMENT_VERSIONS 8
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#define RECEIVE_BUFFER_SIZE 4096
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/* See Communication Interface User's Manual on p. 268 (:WAVeform:ALL:SEND?). */
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#define DLM_MAX_FRAME_LENGTH 12500
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/* See Communication Interface User's Manual on p. 269 (:WAVeform:SEND?). */
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#define DLM_DIVISION_FOR_WORD_FORMAT 3200
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#define DLM_DIVISION_FOR_BYTE_FORMAT 12.5
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#define DLM_DIG_CHAN_INDEX_OFFS 32
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enum trigger_slopes {
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SLOPE_POSITIVE,
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SLOPE_NEGATIVE
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};
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extern const char *dlm_trigger_slopes[3];
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extern const uint64_t dlm_timebases[36][2];
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extern const uint64_t dlm_vdivs[17][2];
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struct scope_config {
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const char *model_id[MAX_INSTRUMENT_VERSIONS];
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const char *model_name[MAX_INSTRUMENT_VERSIONS];
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const uint8_t analog_channels;
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const uint8_t digital_channels;
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const uint8_t pods;
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const char *(*analog_names)[];
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const char *(*digital_names)[];
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const char *(*coupling_options)[];
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const uint8_t num_coupling_options;
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const char *(*trigger_sources)[];
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const uint8_t num_trigger_sources;
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const uint8_t num_xdivs;
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const uint8_t num_ydivs;
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};
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struct analog_channel_state {
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int coupling;
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int vdiv;
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float vertical_offset, waveform_range, waveform_offset;
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gboolean state;
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};
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struct scope_state {
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struct analog_channel_state *analog_states;
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gboolean *digital_states;
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gboolean *pod_states;
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int timebase;
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float horiz_triggerpos;
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int trigger_source;
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int trigger_slope;
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uint64_t sample_rate;
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uint32_t samples_per_frame;
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};
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/** Private, per-device-instance driver context. */
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struct dev_context {
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const void *model_config;
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void *model_state;
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struct sr_channel_group **analog_groups;
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struct sr_channel_group **digital_groups;
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GSList *enabled_channels;
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GSList *current_channel;
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uint64_t num_frames;
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uint64_t frame_limit;
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char receive_buffer[RECEIVE_BUFFER_SIZE];
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gboolean data_pending;
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};
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SR_PRIV int dlm_channel_state_set(const struct sr_dev_inst *sdi,
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const int ch_index, gboolean state);
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SR_PRIV int dlm_data_request(const struct sr_dev_inst *sdi);
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SR_PRIV int dlm_model_get(char *model_id, char **model_name, int *model_index);
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SR_PRIV int dlm_device_init(struct sr_dev_inst *sdi, int model_index);
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SR_PRIV int dlm_data_receive(int fd, int revents, void *cb_data);
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SR_PRIV void dlm_scope_state_destroy(struct scope_state *state);
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SR_PRIV int dlm_scope_state_query(struct sr_dev_inst *sdi);
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SR_PRIV int dlm_sample_rate_query(const struct sr_dev_inst *sdi);
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SR_PRIV int dlm_channel_data_request(const struct sr_dev_inst *sdi);
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#endif
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