libsigrok/hardware/rigol-ds1xx2/protocol.h

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/*
* This file is part of the libsigrok project.
*
* Copyright (C) 2012 Martin Ling <martin-git@earth.li>
*
* 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_RIGOL_DS1XX2_PROTOCOL_H
#define LIBSIGROK_HARDWARE_RIGOL_DS1XX2_PROTOCOL_H
#include <stdint.h>
#include "libsigrok.h"
#include "libsigrok-internal.h"
/* Message logging helpers with driver-specific prefix string. */
#define DRIVER_LOG_DOMAIN "rigol-ds1xx2: "
#define sr_log(l, s, args...) sr_log(l, DRIVER_LOG_DOMAIN s, ## args)
#define sr_spew(s, args...) sr_spew(DRIVER_LOG_DOMAIN s, ## args)
#define sr_dbg(s, args...) sr_dbg(DRIVER_LOG_DOMAIN s, ## args)
#define sr_info(s, args...) sr_info(DRIVER_LOG_DOMAIN s, ## args)
#define sr_warn(s, args...) sr_warn(DRIVER_LOG_DOMAIN s, ## args)
#define sr_err(s, args...) sr_err(DRIVER_LOG_DOMAIN s, ## args)
#define WAVEFORM_SIZE 600
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/** Private, per-device-instance driver context. */
struct dev_context {
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/** The current frame limit. */
uint64_t limit_frames;
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/** The current sampling limit (in number of samples). */
uint64_t limit_samples;
/** The current sampling limit (in ms). */
uint64_t limit_msec;
/** Opaque pointer passed in by the frontend. */
void *cb_data;
/** The current number of already received frames. */
uint64_t num_frames;
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/** The current number of already received samples. */
uint64_t num_samples;
/** Current scale setting. */
float scale;
/** Current offset setting. */
float offset;
/** Path to USBTMC character device file. */
char *device;
/** USBTMC character device file descriptor. */
int fd;
GSList *enabled_probes;
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};
SR_PRIV int rigol_ds1xx2_receive_data(int fd, int revents, void *cb_data);
SR_PRIV int rigol_ds1xx2_send_data(int fd, const char *format, ...);
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#endif