68 lines
2.1 KiB
C
68 lines
2.1 KiB
C
/*
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* This file is part of the sigrok project.
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*
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* Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
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* Copyright (C) 2012 Alexandru Gagniuc <mr.nuke.me@gmail.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef LIBSIGROK_HARDWARE_RADIOSHACK_DMM_PROTOCOL_H
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#define LIBSIGROK_HARDWARE_RADIOSHACK_DMM_PROTOCOL_H
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/* Message logging helpers with driver-specific prefix string. */
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#define DRIVER_LOG_DOMAIN "radioshack-dmm: "
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#define sr_log(l, s, args...) sr_log(l, DRIVER_LOG_DOMAIN s, ## args)
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#define sr_spew(s, args...) sr_spew(DRIVER_LOG_DOMAIN s, ## args)
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#define sr_dbg(s, args...) sr_dbg(DRIVER_LOG_DOMAIN s, ## args)
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#define sr_info(s, args...) sr_info(DRIVER_LOG_DOMAIN s, ## args)
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#define sr_warn(s, args...) sr_warn(DRIVER_LOG_DOMAIN s, ## args)
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#define sr_err(s, args...) sr_err(DRIVER_LOG_DOMAIN s, ## args)
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#define RS_DMM_BUFSIZE 256
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#define RS_22_812_PACKET_SIZE 9
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struct rs_22_812_packet {
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uint8_t mode;
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uint8_t indicatrix1;
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uint8_t indicatrix2;
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uint8_t digit4;
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uint8_t digit3;
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uint8_t digit2;
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uint8_t digit1;
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uint8_t info;
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uint8_t checksum;
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};
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/* Private, per-device-instance driver context. */
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struct dev_context {
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uint64_t limit_samples;
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struct sr_serial_dev_inst *serial;
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/* Opaque pointer passed in by the frontend. */
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void *cb_data;
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/* Runtime. */
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uint64_t num_samples;
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uint8_t buf[RS_DMM_BUFSIZE];
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size_t bufoffset;
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size_t buflen;
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};
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SR_PRIV int radioshack_dmm_receive_data(int fd, int revents, void *cb_data);
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SR_PRIV gboolean rs_22_812_packet_valid(const struct rs_22_812_packet *rs_packet);
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#endif
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