67 lines
2.1 KiB
C
67 lines
2.1 KiB
C
/*
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* This file is part of the libsigrok project.
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*
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* Copyright (C) 2017 Jan Luebbe <jluebbe@lasnet.de>
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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_SALEAE_LOGICPRO_PROTOCOL_H
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#define LIBSIGROK_HARDWARE_SALEAE_LOGICPRO_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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#define LOG_PREFIX "saleae-logicpro"
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/* 16 channels * 32 samples */
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#define CONV_BATCH_SIZE (2*32)
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/* one packet + one partial conversion:
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* worst case is only one active channel converted to 2 bytes per sample, with
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* 8*16384 samples per packet
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*/
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#define CONV_BUFFER_SIZE (2*8*16384 + CONV_BATCH_SIZE)
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/** Private, per-device-instance driver context. */
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struct dev_context {
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/* Acquisition settings */
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unsigned int dig_channel_cnt;
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uint16_t dig_channel_mask;
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uint16_t dig_channel_masks[16];
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uint64_t dig_samplerate;
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/* Operational state */
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uint32_t lfsr;
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/* Temporary state across callbacks */
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unsigned int num_transfers;
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unsigned int submitted_transfers;
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struct libusb_transfer **transfers;
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/* Conversion buffer */
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uint8_t *conv_buffer;
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unsigned int conv_size;
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unsigned int batch_index;
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};
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SR_PRIV int saleae_logicpro_init(const struct sr_dev_inst *sdi);
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SR_PRIV int saleae_logicpro_prepare(const struct sr_dev_inst *sdi);
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SR_PRIV int saleae_logicpro_start(const struct sr_dev_inst *sdi);
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SR_PRIV int saleae_logicpro_stop(const struct sr_dev_inst *sdi);
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SR_PRIV void LIBUSB_CALL saleae_logicpro_receive_data(struct libusb_transfer *transfer);
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#endif
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