63 lines
1.8 KiB
C
63 lines
1.8 KiB
C
/*
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* This file is part of the libsigrok project.
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*
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* Copyright (C) 2015 Martin Lederhilger <martin.lederhilger@gmx.at>
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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_GWINSTEK_GDS_800_PROTOCOL_H
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#define LIBSIGROK_HARDWARE_GWINSTEK_GDS_800_PROTOCOL_H
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#include <stdint.h>
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#include <glib.h>
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#include <libsigrok/libsigrok.h>
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#include "libsigrok-internal.h"
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#include "scpi.h"
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#define LOG_PREFIX "gwinstek-gds-800"
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#define MAX_SAMPLES 125000
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#define MAX_RCV_BUFFER_SIZE (MAX_SAMPLES * 2)
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enum gds_state
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{
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START_ACQUISITION,
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START_TRANSFER_OF_CHANNEL_DATA,
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WAIT_FOR_TRANSFER_OF_BEGIN_TRANSMISSION_COMPLETE,
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WAIT_FOR_TRANSFER_OF_DATA_SIZE_DIGIT_COMPLETE,
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WAIT_FOR_TRANSFER_OF_DATA_SIZE_COMPLETE,
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WAIT_FOR_TRANSFER_OF_SAMPLE_RATE_COMPLETE,
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WAIT_FOR_TRANSFER_OF_CHANNEL_INDICATOR_COMPLETE,
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WAIT_FOR_TRANSFER_OF_RESERVED_DATA_COMPLETE,
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WAIT_FOR_TRANSFER_OF_CHANNEL_DATA_COMPLETE,
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};
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struct dev_context {
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enum gds_state state;
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uint64_t cur_acq_frame;
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uint64_t frame_limit;
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int cur_acq_channel;
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int cur_rcv_buffer_position;
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char rcv_buffer[MAX_RCV_BUFFER_SIZE];
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int data_size_digits;
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int data_size;
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float sample_rate;
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gboolean df_started;
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};
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SR_PRIV int gwinstek_gds_800_receive_data(int fd, int revents, void *cb_data);
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#endif
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