2 * This file is part of the libsigrok project.
4 * Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 #ifndef LIBSIGROK_HARDWARE_LASCAR_EL_USB_PROTOCOL_H
21 #define LIBSIGROK_HARDWARE_LASCAR_EL_USB_PROTOCOL_H
24 #include <libsigrok/libsigrok.h>
25 #include "libsigrok-internal.h"
27 #define LOG_PREFIX "lascar-el-usb"
29 #define LASCAR_VENDOR "Lascar"
30 #define LASCAR_INTERFACE 0
31 #define LASCAR_EP_IN 0x82
32 #define LASCAR_EP_OUT 2
33 #define MAX_CONFIGBLOCK_SIZE 256
35 /* Max 100ms for a device to positively identify. */
36 #define SCAN_TIMEOUT (100 * 1000)
37 #define BULK_XFER_TIMEOUT (10 * 1000)
38 #define EVENTS_TIMEOUT (10 * 1000)
39 #define SLEEP_US_LONG (5 * 1000)
40 #define SLEEP_US_SHORT (1 * 1000)
42 /** Private, per-device-instance driver context. */
45 const struct elusb_profile *profile;
47 unsigned char config[MAX_CONFIGBLOCK_SIZE];
48 unsigned int log_size;
49 unsigned int rcvd_bytes;
50 unsigned int sample_size;
51 unsigned int logged_samples;
52 unsigned int rcvd_samples;
53 uint64_t limit_samples;
55 /* EL-USB-CO: these are something like scaling and calibration values
56 * fixed per device, used to convert the sample values to CO ppm. */
59 /* Temperature units as stored in the device config. */
69 struct elusb_profile {
71 const char *modelname;
75 SR_PRIV int lascar_get_config(libusb_device_handle *dev_hdl,
76 unsigned char *configblock, int *configlen);
77 SR_PRIV struct sr_dev_inst *lascar_scan(int bus, int address);
78 SR_PRIV int lascar_el_usb_handle_events(int fd, int revents, void *cb_data);
79 SR_PRIV void LIBUSB_CALL lascar_el_usb_receive_transfer(struct libusb_transfer *transfer);
80 SR_PRIV int lascar_start_logging(const struct sr_dev_inst *sdi);
81 SR_PRIV int lascar_stop_logging(const struct sr_dev_inst *sdi);
82 SR_PRIV int lascar_is_logging(const struct sr_dev_inst *sdi);
83 SR_PRIV int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data);