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ca3d84cc BV |
1 | /* |
2 | * This file is part of the sigrok 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 | ||
db135200 BV |
21 | #ifndef LIBSIGROK_GENERICDMM_H |
22 | #define LIBSIGROK_GENERICDMM_H | |
ca3d84cc BV |
23 | |
24 | /* SR_HWCAP_CONN takes one of these: */ | |
25 | #define DMM_CONN_USB_VIDPID "^([0--9a-z]{1,4}):([0--9a-z]{1,4})$" | |
26 | #define DMM_CONN_USB_BUSADDR "^(\\d+)\\.(\\d+)$" | |
27 | #define DMM_CONN_SERIALPORT "^([a-z0-9/\\-_]+)$" | |
28 | ||
29 | /* SR_HWCAP_SERIALCOMM like 2400/8n1 */ | |
30 | #define DMM_CONN_SERIALCOMM "^(\\d+)/(\\d)([neo])(\\d)$" | |
31 | ||
32 | enum { | |
33 | DMM_TRANSPORT_SERIAL, | |
34 | DMM_TRANSPORT_USBHID, | |
35 | }; | |
36 | ||
37 | ||
38 | struct dev_profile { | |
39 | char *modelid; | |
40 | char *vendor; | |
41 | char *model; | |
42 | struct dmmchip *chip; | |
43 | /* Only use when the VID:PID is really specific to a DMM. */ | |
44 | uint16_t vid; | |
45 | uint16_t pid; | |
46 | int transport; | |
47 | }; | |
48 | ||
49 | struct context { | |
50 | struct dev_profile *profile; | |
51 | uint64_t limit_samples; | |
52 | uint64_t limit_msec; | |
53 | ||
54 | /* Opaque pointer passed in by the frontend. */ | |
55 | void *cb_data; | |
56 | ||
57 | /* Only used for USB-connected devices. */ | |
58 | struct sr_usb_dev_inst *usb; | |
59 | ||
60 | /* Only used for serial-connected devices. */ | |
61 | struct sr_serial_dev_inst *serial; | |
62 | int serial_speed; | |
63 | int serial_databits; | |
64 | int serial_parity; | |
65 | int serial_stopbits; | |
66 | ||
67 | /* Runtime. */ | |
68 | uint64_t num_samples; | |
69 | ||
70 | /* DMM chip-specific data, if needed. */ | |
71 | void *priv; | |
72 | }; | |
73 | ||
74 | struct dmmchip { | |
75 | /* Optional, called once before measurement starts. */ | |
76 | int (*init) (struct context *ctx); | |
77 | /* Called whenever a chunk of data arrives. */ | |
78 | int (*data) (struct context *ctx, unsigned char *data); | |
79 | }; | |
80 | ||
81 | ||
db135200 | 82 | #endif /* LIBSIGROK_GENERICDMM_H */ |