libsigrok/hardware/appa-55ii/protocol.h

63 lines
2.0 KiB
C

/*
* This file is part of the libsigrok project.
*
* Copyright (C) 2013 Aurelien Jacobs <aurel@gnuage.org>
*
* 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_APPA_55II_PROTOCOL_H
#define LIBSIGROK_HARDWARE_APPA_55II_PROTOCOL_H
#include <stdint.h>
#include <glib.h>
#include "libsigrok.h"
#include "libsigrok-internal.h"
#define LOG_PREFIX "appa-55ii"
#define APPA_55II_NUM_CHANNELS 2
#define APPA_55II_BUF_SIZE (4 + 32 + 1)
#define DEFAULT_DATA_SOURCE DATA_SOURCE_LIVE
enum {
DATA_SOURCE_LIVE,
DATA_SOURCE_MEMORY,
};
/** Private, per-device-instance driver context. */
struct dev_context {
/* Acquisition settings */
uint64_t limit_samples; /**< The sampling limit (in number of samples). */
uint64_t limit_msec; /**< The time limit (in milliseconds). */
gboolean data_source; /**< Whether to read live samples or memory */
void *session_cb_data; /**< Opaque pointer passed in by the frontend. */
/* Operational state */
uint64_t num_samples; /**< The number of already received samples. */
int64_t start_time; /**< The time at which sampling started. */
/* Temporary state across callbacks */
uint8_t buf[APPA_55II_BUF_SIZE];
unsigned int buf_len;
uint8_t log_buf[64];
unsigned int log_buf_len;
unsigned int num_log_records;
};
SR_PRIV gboolean appa_55ii_packet_valid(const uint8_t *buf);
SR_PRIV int appa_55ii_receive_data(int fd, int revents, void *cb_data);
#endif