libsigrok/src/hardware/yokogawa-dlm/protocol.h

128 lines
3.6 KiB
C

/*
* This file is part of the libsigrok project.
*
* Copyright (C) 2014 abraxa (Soeren Apel) <soeren@apelpie.net>
* Based on the Hameg HMO driver by poljar (Damir Jelić) <poljarinho@gmail.com>
*
* 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
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef LIBSIGROK_HARDWARE_YOKOGAWA_DLM_PROTOCOL_H
#define LIBSIGROK_HARDWARE_YOKOGAWA_DLM_PROTOCOL_H
#include <glib.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <libsigrok/libsigrok.h>
#include "libsigrok-internal.h"
#include "protocol_wrappers.h"
#define LOG_PREFIX "yokogawa-dlm"
#define MAX_INSTRUMENT_VERSIONS 8
#define RECEIVE_BUFFER_SIZE 4096
/* See Communication Interface User's Manual on p. 268 (:WAVeform:ALL:SEND?). */
#define DLM_MAX_FRAME_LENGTH 12500
/* See Communication Interface User's Manual on p. 269 (:WAVeform:SEND?). */
#define DLM_DIVISION_FOR_WORD_FORMAT 3200
#define DLM_DIVISION_FOR_BYTE_FORMAT 12.5
#define DLM_DIG_CHAN_INDEX_OFFS 32
enum trigger_slopes {
SLOPE_POSITIVE,
SLOPE_NEGATIVE
};
extern const char *dlm_trigger_slopes[3];
extern const uint64_t dlm_timebases[36][2];
extern const uint64_t dlm_vdivs[17][2];
struct scope_config {
const char *model_id[MAX_INSTRUMENT_VERSIONS];
const char *model_name[MAX_INSTRUMENT_VERSIONS];
const uint8_t analog_channels;
const uint8_t digital_channels;
const uint8_t pods;
const char *(*analog_names)[];
const char *(*digital_names)[];
const char *(*coupling_options)[];
const uint8_t num_coupling_options;
const char *(*trigger_sources)[];
const uint8_t num_trigger_sources;
const uint8_t num_xdivs;
const uint8_t num_ydivs;
};
struct analog_channel_state {
int coupling;
int vdiv;
float vertical_offset, waveform_range, waveform_offset;
gboolean state;
};
struct scope_state {
struct analog_channel_state *analog_states;
gboolean *digital_states;
gboolean *pod_states;
int timebase;
float horiz_triggerpos;
int trigger_source;
int trigger_slope;
uint64_t sample_rate;
uint32_t samples_per_frame;
};
/** Private, per-device-instance driver context. */
struct dev_context {
const void *model_config;
void *model_state;
struct sr_channel_group **analog_groups;
struct sr_channel_group **digital_groups;
GSList *enabled_channels;
GSList *current_channel;
uint64_t num_frames;
uint64_t frame_limit;
char receive_buffer[RECEIVE_BUFFER_SIZE];
gboolean data_pending;
};
SR_PRIV int dlm_channel_state_set(const struct sr_dev_inst *sdi,
const int ch_index, gboolean state);
SR_PRIV int dlm_data_request(const struct sr_dev_inst *sdi);
SR_PRIV int dlm_model_get(char *model_id, char **model_name, int *model_index);
SR_PRIV int dlm_device_init(struct sr_dev_inst *sdi, int model_index);
SR_PRIV int dlm_data_receive(int fd, int revents, void *cb_data);
SR_PRIV void dlm_scope_state_destroy(struct scope_state *state);
SR_PRIV int dlm_scope_state_query(struct sr_dev_inst *sdi);
SR_PRIV int dlm_sample_rate_query(const struct sr_dev_inst *sdi);
SR_PRIV int dlm_channel_data_request(const struct sr_dev_inst *sdi);
#endif