libsigrok/hardware/center-3xx/protocol.h

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/*
* This file is part of the libsigrok project.
*
* Copyright (C) 2013 Uwe Hermann <uwe@hermann-uwe.de>
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef LIBSIGROK_HARDWARE_CENTER_3XX_PROTOCOL_H
#define LIBSIGROK_HARDWARE_CENTER_3XX_PROTOCOL_H
#include <stdint.h>
#include <string.h>
#include <ctype.h>
#include <math.h>
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#include <glib.h>
#include "libsigrok.h"
#include "libsigrok-internal.h"
/* Message logging helpers with subsystem-specific prefix string. */
#define LOG_PREFIX "center-3xx: "
#define sr_log(l, s, args...) sr_log(l, LOG_PREFIX s, ## args)
#define sr_spew(s, args...) sr_spew(LOG_PREFIX s, ## args)
#define sr_dbg(s, args...) sr_dbg(LOG_PREFIX s, ## args)
#define sr_info(s, args...) sr_info(LOG_PREFIX s, ## args)
#define sr_warn(s, args...) sr_warn(LOG_PREFIX s, ## args)
#define sr_err(s, args...) sr_err(LOG_PREFIX s, ## args)
/* Note: When adding entries here, don't forget to update CENTER_DEV_COUNT. */
enum {
CENTER_309,
VOLTCRAFT_K204,
};
#define CENTER_DEV_COUNT 2
struct center_dev_info {
char *vendor;
char *device;
char *conn;
int num_channels;
uint32_t max_sample_points;
uint8_t packet_size;
gboolean (*packet_valid)(const uint8_t *);
struct sr_dev_driver *di;
int (*receive_data)(int, int, void *);
};
extern SR_PRIV const struct center_dev_info center_devs[CENTER_DEV_COUNT];
#define SERIAL_BUFSIZE 256
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/** Private, per-device-instance driver context. */
struct dev_context {
/** The current sampling limit (in number of samples). */
uint64_t limit_samples;
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/** The current sampling limit (in ms). */
uint64_t limit_msec;
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/** Opaque pointer passed in by the frontend. */
void *cb_data;
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/** The current number of already received samples. */
uint64_t num_samples;
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int64_t starttime;
uint8_t buf[SERIAL_BUFSIZE];
int bufoffset;
int buflen;
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};
SR_PRIV gboolean center_3xx_packet_valid(const uint8_t *buf);
SR_PRIV int receive_data_CENTER_309(int fd, int revents, void *cb_data);
SR_PRIV int receive_data_VOLTCRAFT_K204(int fd, int revents, void *cb_data);
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#endif