libsigrok/src/hardware/rdtech-um/protocol.h

65 lines
1.8 KiB
C

/*
* This file is part of the libsigrok project.
*
* Copyright (C) 2018-2020 Andreas Sandberg <andreas@sandberg.pp.se>
*
* 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_RDTECH_UM_PROTOCOL_H
#define LIBSIGROK_HARDWARE_RDTECH_UM_PROTOCOL_H
#include <libsigrok/libsigrok.h>
#include "libsigrok-internal.h"
#define LOG_PREFIX "rdtech-um"
#define RDTECH_UM_BUFSIZE 256
enum rdtech_um_model_id {
RDTECH_UM24C = 0x0963,
RDTECH_UM25C = 0x09c9,
RDTECH_UM34C = 0x0d4c,
};
enum rdtech_um_checksum {
RDTECH_CSUM_STATIC_FFF1,
RDTECH_CSUM_UM34C,
};
/* Supported device profiles */
struct rdtech_um_profile {
const char *model_name;
enum rdtech_um_model_id model_id;
const struct binary_analog_channel *channels;
/* Verify poll packet checksum; return 1 if OK, 0 otherwise. */
int (*poll_csum)(char buf[], int len);
};
struct dev_context {
const struct rdtech_um_profile *profile;
struct sr_sw_limits limits;
char buf[RDTECH_UM_BUFSIZE];
int buflen;
int64_t cmd_sent_at;
};
SR_PRIV const struct rdtech_um_profile *rdtech_um_probe(struct sr_serial_dev_inst *serial);
SR_PRIV int rdtech_um_receive_data(int fd, int revents, void *cb_data);
SR_PRIV int rdtech_um_poll(const struct sr_dev_inst *sdi);
#endif