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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2012 Bert Vermeulen <bert@biot.com> | |
5 | * | |
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. | |
10 | * | |
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. | |
15 | * | |
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/>. | |
18 | */ | |
19 | ||
20 | #ifndef LIBSIGROK_HARDWARE_LASCAR_EL_USB_PROTOCOL_H | |
21 | #define LIBSIGROK_HARDWARE_LASCAR_EL_USB_PROTOCOL_H | |
22 | ||
23 | #include <stdint.h> | |
24 | #include "libsigrok.h" | |
25 | #include "libsigrok-internal.h" | |
26 | ||
27 | #define LOG_PREFIX "lascar-el-usb" | |
28 | ||
29 | #define LASCAR_VENDOR "Lascar" | |
30 | #define LASCAR_INTERFACE 0 | |
31 | #define LASCAR_EP_IN 0x82 | |
32 | #define LASCAR_EP_OUT 2 | |
33 | /* Max 100ms for a device to positively identify. */ | |
34 | #define SCAN_TIMEOUT 100000 | |
35 | #define MAX_CONFIGBLOCK_SIZE 256 | |
36 | ||
37 | /** Private, per-device-instance driver context. */ | |
38 | struct dev_context { | |
39 | void *cb_data; | |
40 | const struct elusb_profile *profile; | |
41 | /* Generic EL-USB */ | |
42 | unsigned char config[MAX_CONFIGBLOCK_SIZE]; | |
43 | unsigned int log_size; | |
44 | unsigned int rcvd_bytes; | |
45 | unsigned int sample_size; | |
46 | unsigned int logged_samples; | |
47 | unsigned int rcvd_samples; | |
48 | uint64_t limit_samples; | |
49 | /* Model-specific */ | |
50 | /* EL-USB-CO: these are something like scaling and calibration values | |
51 | * fixed per device, used to convert the sample values to CO ppm. */ | |
52 | float co_high; | |
53 | float co_low; | |
54 | /* Temperature units as stored in the device config. */ | |
55 | int temp_unit; | |
56 | }; | |
57 | ||
58 | enum { | |
59 | LOG_UNSUPPORTED, | |
60 | LOG_TEMP_RH, | |
61 | LOG_CO, | |
62 | }; | |
63 | ||
64 | struct elusb_profile { | |
65 | int modelid; | |
66 | char *modelname; | |
67 | int logformat; | |
68 | }; | |
69 | ||
70 | SR_PRIV int lascar_get_config(libusb_device_handle *dev_hdl, | |
71 | unsigned char *configblock, int *configlen); | |
72 | SR_PRIV struct sr_dev_inst *lascar_scan(int bus, int address); | |
73 | SR_PRIV int lascar_el_usb_handle_events(int fd, int revents, void *cb_data); | |
74 | SR_PRIV void lascar_el_usb_receive_transfer(struct libusb_transfer *transfer); | |
75 | SR_PRIV int lascar_start_logging(const struct sr_dev_inst *sdi); | |
76 | SR_PRIV int lascar_stop_logging(const struct sr_dev_inst *sdi); | |
77 | SR_PRIV int lascar_is_logging(const struct sr_dev_inst *sdi); | |
78 | SR_PRIV int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data); | |
79 | ||
80 | #endif |