80 lines
2.4 KiB
C
80 lines
2.4 KiB
C
/*
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* This file is part of the libsigrok project.
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*
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* Copyright (C) 2012 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_LASCAR_EL_USB_PROTOCOL_H
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#define LIBSIGROK_HARDWARE_LASCAR_EL_USB_PROTOCOL_H
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#include <stdint.h>
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#include "libsigrok.h"
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#include "libsigrok-internal.h"
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#define LOG_PREFIX "lascar-el-usb"
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#define LASCAR_VENDOR "Lascar"
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#define LASCAR_INTERFACE 0
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#define LASCAR_EP_IN 0x82
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#define LASCAR_EP_OUT 2
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/* Max 100ms for a device to positively identify. */
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#define SCAN_TIMEOUT 100000
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#define MAX_CONFIGBLOCK_SIZE 256
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/** Private, per-device-instance driver context. */
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struct dev_context {
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void *cb_data;
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const struct elusb_profile *profile;
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/* Generic EL-USB */
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unsigned char config[MAX_CONFIGBLOCK_SIZE];
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unsigned int log_size;
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unsigned int rcvd_bytes;
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unsigned int sample_size;
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unsigned int logged_samples;
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unsigned int rcvd_samples;
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uint64_t limit_samples;
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/* Model-specific */
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/* EL-USB-CO: these are something like scaling and calibration values
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* fixed per device, used to convert the sample values to CO ppm. */
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float co_high;
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float co_low;
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/* Temperature units as stored in the device config. */
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int temp_unit;
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};
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enum {
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LOG_UNSUPPORTED,
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LOG_TEMP_RH,
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LOG_CO,
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};
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struct elusb_profile {
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int modelid;
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char *modelname;
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int logformat;
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};
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SR_PRIV int lascar_get_config(libusb_device_handle *dev_hdl,
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unsigned char *configblock, int *configlen);
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SR_PRIV int lascar_el_usb_handle_events(int fd, int revents, void *cb_data);
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SR_PRIV void lascar_el_usb_receive_transfer(struct libusb_transfer *transfer);
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SR_PRIV int lascar_start_logging(const struct sr_dev_inst *sdi);
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SR_PRIV int lascar_stop_logging(const struct sr_dev_inst *sdi);
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SR_PRIV int lascar_is_logging(const struct sr_dev_inst *sdi);
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SR_PRIV int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data);
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#endif
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