84 lines
2.5 KiB
C
84 lines
2.5 KiB
C
/*
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* This file is part of the libsigrok project.
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*
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* Copyright (C) 2014 Bert Vermeulen <bert@biot.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_TESTO_PROTOCOL_H
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#define LIBSIGROK_HARDWARE_TESTO_PROTOCOL_H
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#include <stdint.h>
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#include <glib.h>
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#include "libsigrok.h"
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#include "libsigrok-internal.h"
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#define LOG_PREFIX "testo"
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#define MAX_REPLY_SIZE 128
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#define MAX_CHANNELS 16
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/* FTDI commands */
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#define FTDI_SET_MODEMCTRL 0x01
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#define FTDI_SET_FLOWCTRL 0x02
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#define FTDI_SET_BAUDRATE 0x03
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#define FTDI_SET_PARAMS 0x04
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/* FTDI command values */
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#define FTDI_BAUDRATE_115200 0x001a
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#define FTDI_PARAMS_8N1 0x0008
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#define FTDI_FLOW_NONE 0x0008
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#define FTDI_MODEM_ALLHIGH 0x0303
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#define FTDI_INDEX 0x0000
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/* FTDI USB stuff */
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#define EP_IN 1 | LIBUSB_ENDPOINT_IN
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#define EP_OUT 2 | LIBUSB_ENDPOINT_OUT
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struct testo_model {
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char *name;
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int request_size;
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unsigned char *request;
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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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/* Model-specific information */
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struct testo_model *model;
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/* Acquisition settings */
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uint64_t limit_msec;
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uint64_t limit_samples;
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void *cb_data;
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/* Operational state */
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gint64 end_time;
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uint64_t num_samples;
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uint8_t channel_units[MAX_CHANNELS];
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int num_channels;
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/* Temporary state across callbacks */
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struct libusb_transfer *out_transfer;
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unsigned char reply[MAX_REPLY_SIZE];
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int reply_size;
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};
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SR_PRIV int testo_set_serial_params(struct sr_usb_dev_inst *usb);
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SR_PRIV int testo_probe_channels(struct sr_dev_inst *sdi);
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SR_PRIV void receive_transfer(struct libusb_transfer *transfer);
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SR_PRIV int testo_request_packet(const struct sr_dev_inst *sdi);
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SR_PRIV gboolean testo_check_packet_prefix(unsigned char *buf, int len);
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SR_PRIV uint16_t crc16_mcrf4xx(uint16_t crc, uint8_t *data, size_t len);
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SR_PRIV void testo_receive_packet(const struct sr_dev_inst *sdi);
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#endif
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