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.h"
25 #include "libsigrok-internal.h"
27 /* Message logging helpers with subsystem-specific prefix string. */
28 #define LOG_PREFIX "lascar-el-usb: "
29 #define sr_log(l, s, args...) sr_log(l, LOG_PREFIX s, ## args)
30 #define sr_spew(s, args...) sr_spew(LOG_PREFIX s, ## args)
31 #define sr_dbg(s, args...) sr_dbg(LOG_PREFIX s, ## args)
32 #define sr_info(s, args...) sr_info(LOG_PREFIX s, ## args)
33 #define sr_warn(s, args...) sr_warn(LOG_PREFIX s, ## args)
34 #define sr_err(s, args...) sr_err(LOG_PREFIX s, ## args)
36 #define LASCAR_VENDOR "Lascar"
37 #define LASCAR_INTERFACE 0
38 #define LASCAR_EP_IN 0x82
39 #define LASCAR_EP_OUT 2
40 /* Max 100ms for a device to positively identify. */
41 #define SCAN_TIMEOUT 100000
42 #define MAX_CONFIGBLOCK_SIZE 256
44 /** Private, per-device-instance driver context. */
47 const struct elusb_profile *profile;
50 unsigned char config[MAX_CONFIGBLOCK_SIZE];
51 unsigned int log_size;
52 unsigned int rcvd_bytes;
53 unsigned int sample_size;
54 unsigned int logged_samples;
55 unsigned int rcvd_samples;
56 uint64_t limit_samples;
58 /* EL-USB-CO: these are something like scaling and calibration values
59 * fixed per device, used to convert the sample values to CO ppm. */
62 /* Temperature units as stored in the device config. */
72 struct elusb_profile {
78 SR_PRIV int lascar_get_config(libusb_device_handle *dev_hdl,
79 unsigned char *configblock, int *configlen);
80 SR_PRIV int lascar_el_usb_handle_events(int fd, int revents, void *cb_data);
81 SR_PRIV void lascar_el_usb_receive_transfer(struct libusb_transfer *transfer);
82 SR_PRIV int lascar_start_logging(const struct sr_dev_inst *sdi);
83 SR_PRIV int lascar_stop_logging(const struct sr_dev_inst *sdi);
84 SR_PRIV int lascar_is_logging(const struct sr_dev_inst *sdi);
85 SR_PRIV int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data);